zod/src/v3/types.ts

TypeScript-first schema declaration and validation library with static type inference

import {
  type IssueData,
  type StringValidation,
  type ZodCustomIssue,
  ZodError,
  type ZodErrorMap,
  type ZodIssue,
  ZodIssueCode,
} from "./ZodError.js";
import { defaultErrorMap, getErrorMap } from "./errors.js";
import type { enumUtil } from "./helpers/enumUtil.js";
import { errorUtil } from "./helpers/errorUtil.js";
import {
  type AsyncParseReturnType,
  DIRTY,
  INVALID,
  OK,
  type ParseContext,
  type ParseInput,
  type ParseParams,
  type ParsePath,
  type ParseReturnType,
  ParseStatus,
  type SyncParseReturnType,
  addIssueToContext,
  isAborted,
  isAsync,
  isDirty,
  isValid,
  makeIssue,
} from "./helpers/parseUtil.js";
import type { partialUtil } from "./helpers/partialUtil.js";
import type { Primitive } from "./helpers/typeAliases.js";
import { util, ZodParsedType, getParsedType, type objectUtil } from "./helpers/util.js";
import type { StandardSchemaV1 } from "./standard-schema.js";

///////////////////////////////////////
///////////////////////////////////////
//////////                   //////////
//////////      ZodType      //////////
//////////                   //////////
///////////////////////////////////////
///////////////////////////////////////

export interface RefinementCtx {
  addIssue: (arg: IssueData) => void;
  path: (string | number)[];
}
export type ZodRawShape = { [k: string]: ZodTypeAny };
export type ZodTypeAny = ZodType<any, any, any>;
export type TypeOf<T extends ZodType<any, any, any>> = T["_output"];
export type input<T extends ZodType<any, any, any>> = T["_input"];
export type output<T extends ZodType<any, any, any>> = T["_output"];
export type { TypeOf as infer };

export type CustomErrorParams = Partial<util.Omit<ZodCustomIssue, "code">>;
export interface ZodTypeDef {
  errorMap?: ZodErrorMap | undefined;
  description?: string | undefined;
}

class ParseInputLazyPath implements ParseInput {
  parent: ParseContext;
  data: any;
  _path: ParsePath;
  _key: string | number | (string | number)[];
  _cachedPath: ParsePath = [];
  constructor(parent: ParseContext, value: any, path: ParsePath, key: string | number | (string | number)[]) {
    this.parent = parent;
    this.data = value;
    this._path = path;
    this._key = key;
  }
  get path() {
    if (!this._cachedPath.length) {
      if (Array.isArray(this._key)) {
        this._cachedPath.push(...this._path, ...this._key);
      } else {
        this._cachedPath.push(...this._path, this._key);
      }
    }

    return this._cachedPath;
  }
}

const handleResult = <Input, Output>(
  ctx: ParseContext,
  result: SyncParseReturnType<Output>
): { success: true; data: Output } | { success: false; error: ZodError<Input> } => {
  if (isValid(result)) {
    return { success: true, data: result.value };
  } else {
    if (!ctx.common.issues.length) {
      throw new Error("Validation failed but no issues detected.");
    }

    return {
      success: false,
      get error() {
        if ((this as any)._error) return (this as any)._error as Error;
        const error = new ZodError(ctx.common.issues);
        (this as any)._error = error;
        return (this as any)._error;
      },
    };
  }
};

export type RawCreateParams =
  | {
      errorMap?: ZodErrorMap | undefined;
      invalid_type_error?: string | undefined;
      required_error?: string | undefined;
      message?: string | undefined;
      description?: string | undefined;
    }
  | undefined;
export type ProcessedCreateParams = {
  errorMap?: ZodErrorMap | undefined;
  description?: string | undefined;
};
function processCreateParams(params: RawCreateParams): ProcessedCreateParams {
  if (!params) return {};
  const { errorMap, invalid_type_error, required_error, description } = params;
  if (errorMap && (invalid_type_error || required_error)) {
    throw new Error(`Can't use "invalid_type_error" or "required_error" in conjunction with custom error map.`);
  }
  if (errorMap) return { errorMap: errorMap, description };
  const customMap: ZodErrorMap = (iss, ctx) => {
    const { message } = params;

    if (iss.code === "invalid_enum_value") {
      return { message: message ?? ctx.defaultError };
    }
    if (typeof ctx.data === "undefined") {
      return { message: message ?? required_error ?? ctx.defaultError };
    }
    if (iss.code !== "invalid_type") return { message: ctx.defaultError };
    return { message: message ?? invalid_type_error ?? ctx.defaultError };
  };
  return { errorMap: customMap, description };
}

export type SafeParseSuccess<Output> = {
  success: true;
  data: Output;
  error?: never;
};
export type SafeParseError<Input> = {
  success: false;
  error: ZodError<Input>;
  data?: never;
};

export type SafeParseReturnType<Input, Output> = SafeParseSuccess<Output> | SafeParseError<Input>;

export abstract class ZodType<Output = any, Def extends ZodTypeDef = ZodTypeDef, Input = Output> {
  readonly _type!: Output;
  readonly _output!: Output;
  readonly _input!: Input;
  readonly _def!: Def;

  get description(): string | undefined {
    return this._def.description;
  }

  "~standard": StandardSchemaV1.Props<Input, Output>;

  abstract _parse(input: ParseInput): ParseReturnType<Output>;

  _getType(input: ParseInput): string {
    return getParsedType(input.data);
  }

  _getOrReturnCtx(input: ParseInput, ctx?: ParseContext | undefined): ParseContext {
    return (
      ctx || {
        common: input.parent.common,
        data: input.data,

        parsedType: getParsedType(input.data),

        schemaErrorMap: this._def.errorMap,
        path: input.path,
        parent: input.parent,
      }
    );
  }

  _processInputParams(input: ParseInput): {
    status: ParseStatus;
    ctx: ParseContext;
  } {
    return {
      status: new ParseStatus(),
      ctx: {
        common: input.parent.common,
        data: input.data,

        parsedType: getParsedType(input.data),

        schemaErrorMap: this._def.errorMap,
        path: input.path,
        parent: input.parent,
      },
    };
  }

  _parseSync(input: ParseInput): SyncParseReturnType<Output> {
    const result = this._parse(input);
    if (isAsync(result)) {
      throw new Error("Synchronous parse encountered promise.");
    }
    return result;
  }

  _parseAsync(input: ParseInput): AsyncParseReturnType<Output> {
    const result = this._parse(input);
    return Promise.resolve(result);
  }

  parse(data: unknown, params?: util.InexactPartial<ParseParams>): Output {
    const result = this.safeParse(data, params);
    if (result.success) return result.data;
    throw result.error;
  }

  safeParse(data: unknown, params?: util.InexactPartial<ParseParams>): SafeParseReturnType<Input, Output> {
    const ctx: ParseContext = {
      common: {
        issues: [],
        async: params?.async ?? false,
        contextualErrorMap: params?.errorMap,
      },
      path: params?.path || [],
      schemaErrorMap: this._def.errorMap,
      parent: null,
      data,
      parsedType: getParsedType(data),
    };
    const result = this._parseSync({ data, path: ctx.path, parent: ctx });

    return handleResult(ctx, result);
  }

  "~validate"(data: unknown): StandardSchemaV1.Result<Output> | Promise<StandardSchemaV1.Result<Output>> {
    const ctx: ParseContext = {
      common: {
        issues: [],
        async: !!(this["~standard"] as any).async,
      },
      path: [],
      schemaErrorMap: this._def.errorMap,
      parent: null,
      data,
      parsedType: getParsedType(data),
    };

    if (!(this["~standard"] as any).async) {
      try {
        const result = this._parseSync({ data, path: [], parent: ctx });
        return isValid(result)
          ? {
              value: result.value,
            }
          : {
              issues: ctx.common.issues,
            };
      } catch (err: any) {
        if ((err as Error)?.message?.toLowerCase()?.includes("encountered")) {
          (this["~standard"] as any).async = true;
        }
        (ctx as any).common = {
          issues: [],
          async: true,
        };
      }
    }

    return this._parseAsync({ data, path: [], parent: ctx }).then((result) =>
      isValid(result)
        ? {
            value: result.value,
          }
        : {
            issues: ctx.common.issues,
          }
    );
  }

  async parseAsync(data: unknown, params?: util.InexactPartial<ParseParams>): Promise<Output> {
    const result = await this.safeParseAsync(data, params);
    if (result.success) return result.data;
    throw result.error;
  }

  async safeParseAsync(
    data: unknown,
    params?: util.InexactPartial<ParseParams>
  ): Promise<SafeParseReturnType<Input, Output>> {
    const ctx: ParseContext = {
      common: {
        issues: [],
        contextualErrorMap: params?.errorMap,
        async: true,
      },
      path: params?.path || [],
      schemaErrorMap: this._def.errorMap,
      parent: null,
      data,
      parsedType: getParsedType(data),
    };

    const maybeAsyncResult = this._parse({ data, path: ctx.path, parent: ctx });
    const result = await (isAsync(maybeAsyncResult) ? maybeAsyncResult : Promise.resolve(maybeAsyncResult));
    return handleResult(ctx, result);
  }

  /** Alias of safeParseAsync */
  spa = this.safeParseAsync;

  refine<RefinedOutput extends Output>(
    check: (arg: Output) => arg is RefinedOutput,
    message?: string | CustomErrorParams | ((arg: Output) => CustomErrorParams)
  ): ZodEffects<this, RefinedOutput, Input>;
  refine(
    check: (arg: Output) => unknown | Promise<unknown>,
    message?: string | CustomErrorParams | ((arg: Output) => CustomErrorParams)
  ): ZodEffects<this, Output, Input>;
  refine(
    check: (arg: Output) => unknown,
    message?: string | CustomErrorParams | ((arg: Output) => CustomErrorParams)
  ): ZodEffects<this, Output, Input> {
    const getIssueProperties = (val: Output) => {
      if (typeof message === "string" || typeof message === "undefined") {
        return { message };
      } else if (typeof message === "function") {
        return message(val);
      } else {
        return message;
      }
    };
    return this._refinement((val, ctx) => {
      const result = check(val);
      const setError = () =>
        ctx.addIssue({
          code: ZodIssueCode.custom,
          ...getIssueProperties(val),
        });
      if (typeof Promise !== "undefined" && result instanceof Promise) {
        return result.then((data) => {
          if (!data) {
            setError();
            return false;
          } else {
            return true;
          }
        });
      }
      if (!result) {
        setError();
        return false;
      } else {
        return true;
      }
    });
  }

  refinement<RefinedOutput extends Output>(
    check: (arg: Output) => arg is RefinedOutput,
    refinementData: IssueData | ((arg: Output, ctx: RefinementCtx) => IssueData)
  ): ZodEffects<this, RefinedOutput, Input>;
  refinement(
    check: (arg: Output) => boolean,
    refinementData: IssueData | ((arg: Output, ctx: RefinementCtx) => IssueData)
  ): ZodEffects<this, Output, Input>;
  refinement(
    check: (arg: Output) => unknown,
    refinementData: IssueData | ((arg: Output, ctx: RefinementCtx) => IssueData)
  ): ZodEffects<this, Output, Input> {
    return this._refinement((val, ctx) => {
      if (!check(val)) {
        ctx.addIssue(typeof refinementData === "function" ? refinementData(val, ctx) : refinementData);
        return false;
      } else {
        return true;
      }
    });
  }

  _refinement(refinement: RefinementEffect<Output>["refinement"]): ZodEffects<this, Output, Input> {
    return new ZodEffects({
      schema: this,
      typeName: ZodFirstPartyTypeKind.ZodEffects,
      effect: { type: "refinement", refinement },
    });
  }

  superRefine<RefinedOutput extends Output>(
    refinement: (arg: Output, ctx: RefinementCtx) => arg is RefinedOutput
  ): ZodEffects<this, RefinedOutput, Input>;
  superRefine(refinement: (arg: Output, ctx: RefinementCtx) => void): ZodEffects<this, Output, Input>;
  superRefine(refinement: (arg: Output, ctx: RefinementCtx) => Promise<void>): ZodEffects<this, Output, Input>;
  superRefine(
    refinement: (arg: Output, ctx: RefinementCtx) => unknown | Promise<unknown>
  ): ZodEffects<this, Output, Input> {
    return this._refinement(refinement);
  }

  constructor(def: Def) {
    this._def = def;
    this.parse = this.parse.bind(this);
    this.safeParse = this.safeParse.bind(this);
    this.parseAsync = this.parseAsync.bind(this);
    this.safeParseAsync = this.safeParseAsync.bind(this);
    this.spa = this.spa.bind(this);
    this.refine = this.refine.bind(this);
    this.refinement = this.refinement.bind(this);
    this.superRefine = this.superRefine.bind(this);
    this.optional = this.optional.bind(this);
    this.nullable = this.nullable.bind(this);
    this.nullish = this.nullish.bind(this);
    this.array = this.array.bind(this);
    this.promise = this.promise.bind(this);
    this.or = this.or.bind(this);
    this.and = this.and.bind(this);
    this.transform = this.transform.bind(this);
    this.brand = this.brand.bind(this);
    this.default = this.default.bind(this);
    this.catch = this.catch.bind(this);
    this.describe = this.describe.bind(this);
    this.pipe = this.pipe.bind(this);
    this.readonly = this.readonly.bind(this);
    this.isNullable = this.isNullable.bind(this);
    this.isOptional = this.isOptional.bind(this);
    this["~standard"] = {
      version: 1,
      vendor: "zod",
      validate: (data) => this["~validate"](data),
    };
  }

  optional(): ZodOptional<this> {
    return ZodOptional.create(this, this._def) as any;
  }
  nullable(): ZodNullable<this> {
    return ZodNullable.create(this, this._def) as any;
  }
  nullish(): ZodOptional<ZodNullable<this>> {
    return this.nullable().optional();
  }
  array(): ZodArray<this> {
    return ZodArray.create(this);
  }
  promise(): ZodPromise<this> {
    return ZodPromise.create(this, this._def);
  }

  or<T extends ZodTypeAny>(option: T): ZodUnion<[this, T]> {
    return ZodUnion.create([this, option], this._def) as any;
  }

  and<T extends ZodTypeAny>(incoming: T): ZodIntersection<this, T> {
    return ZodIntersection.create(this, incoming, this._def);
  }

  transform<NewOut>(
    transform: (arg: Output, ctx: RefinementCtx) => NewOut | Promise<NewOut>
  ): ZodEffects<this, NewOut> {
    return new ZodEffects({
      ...processCreateParams(this._def),
      schema: this,
      typeName: ZodFirstPartyTypeKind.ZodEffects,
      effect: { type: "transform", transform },
    }) as any;
  }

  default(def: util.noUndefined<Input>): ZodDefault<this>;
  default(def: () => util.noUndefined<Input>): ZodDefault<this>;
  default(def: any) {
    const defaultValueFunc = typeof def === "function" ? def : () => def;

    return new ZodDefault({
      ...processCreateParams(this._def),
      innerType: this,
      defaultValue: defaultValueFunc,
      typeName: ZodFirstPartyTypeKind.ZodDefault,
    }) as any;
  }

  brand<B extends string | number | symbol>(brand?: B): ZodBranded<this, B>;
  brand<B extends string | number | symbol>(): ZodBranded<this, B> {
    return new ZodBranded({
      typeName: ZodFirstPartyTypeKind.ZodBranded,
      type: this,
      ...processCreateParams(this._def),
    });
  }

  catch(def: Output): ZodCatch<this>;
  catch(def: (ctx: { error: ZodError; input: Input }) => Output): ZodCatch<this>;
  catch(def: any) {
    const catchValueFunc = typeof def === "function" ? def : () => def;

    return new ZodCatch({
      ...processCreateParams(this._def),
      innerType: this,
      catchValue: catchValueFunc,
      typeName: ZodFirstPartyTypeKind.ZodCatch,
    }) as any;
  }

  describe(description: string): this {
    const This = (this as any).constructor;
    return new This({
      ...this._def,
      description,
    });
  }

  pipe<T extends ZodTypeAny>(target: T): ZodPipeline<this, T> {
    return ZodPipeline.create(this, target);
  }
  readonly(): ZodReadonly<this> {
    return ZodReadonly.create(this);
  }

  isOptional(): boolean {
    return this.safeParse(undefined).success;
  }
  isNullable(): boolean {
    return this.safeParse(null).success;
  }
}

/////////////////////////////////////////
/////////////////////////////////////////
//////////                     //////////
//////////      ZodString      //////////
//////////                     //////////
/////////////////////////////////////////
/////////////////////////////////////////
export type IpVersion = "v4" | "v6";
export type ZodStringCheck =
  | { kind: "min"; value: number; message?: string | undefined }
  | { kind: "max"; value: number; message?: string | undefined }
  | { kind: "length"; value: number; message?: string | undefined }
  | { kind: "email"; message?: string | undefined }
  | { kind: "url"; message?: string | undefined }
  | { kind: "emoji"; message?: string | undefined }
  | { kind: "uuid"; message?: string | undefined }
  | { kind: "nanoid"; message?: string | undefined }
  | { kind: "cuid"; message?: string | undefined }
  | { kind: "includes"; value: string; position?: number | undefined; message?: string | undefined }
  | { kind: "cuid2"; message?: string | undefined }
  | { kind: "ulid"; message?: string | undefined }
  | { kind: "startsWith"; value: string; message?: string | undefined }
  | { kind: "endsWith"; value: string; message?: string | undefined }
  | { kind: "regex"; regex: RegExp; message?: string | undefined }
  | { kind: "trim"; message?: string | undefined }
  | { kind: "toLowerCase"; message?: string | undefined }
  | { kind: "toUpperCase"; message?: string | undefined }
  | { kind: "jwt"; alg?: string; message?: string | undefined }
  | {
      kind: "datetime";
      offset: boolean;
      local: boolean;
      precision: number | null;
      message?: string | undefined;
    }
  | {
      kind: "date";
      // withDate: true;
      message?: string | undefined;
    }
  | {
      kind: "time";
      precision: number | null;
      message?: string | undefined;
    }
  | { kind: "duration"; message?: string | undefined }
  | { kind: "ip"; version?: IpVersion | undefined; message?: string | undefined }
  | { kind: "cidr"; version?: IpVersion | undefined; message?: string | undefined }
  | { kind: "base64"; message?: string | undefined }
  | { kind: "base64url"; message?: string | undefined };

export interface ZodStringDef extends ZodTypeDef {
  checks: ZodStringCheck[];
  typeName: ZodFirstPartyTypeKind.ZodString;
  coerce: boolean;
}

const cuidRegex = /^c[^\s-]{8,}$/i;
const cuid2Regex = /^[0-9a-z]+$/;
const ulidRegex = /^[0-9A-HJKMNP-TV-Z]{26}$/i;
// const uuidRegex =
//   /^([a-f0-9]{8}-[a-f0-9]{4}-[1-5][a-f0-9]{3}-[a-f0-9]{4}-[a-f0-9]{12}|00000000-0000-0000-0000-000000000000)$/i;
const uuidRegex = /^[0-9a-fA-F]{8}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{4}\b-[0-9a-fA-F]{12}$/i;
const nanoidRegex = /^[a-z0-9_-]{21}$/i;
const jwtRegex = /^[A-Za-z0-9-_]+\.[A-Za-z0-9-_]+\.[A-Za-z0-9-_]*$/;
const durationRegex =
  /^[-+]?P(?!$)(?:(?:[-+]?\d+Y)|(?:[-+]?\d+[.,]\d+Y$))?(?:(?:[-+]?\d+M)|(?:[-+]?\d+[.,]\d+M$))?(?:(?:[-+]?\d+W)|(?:[-+]?\d+[.,]\d+W$))?(?:(?:[-+]?\d+D)|(?:[-+]?\d+[.,]\d+D$))?(?:T(?=[\d+-])(?:(?:[-+]?\d+H)|(?:[-+]?\d+[.,]\d+H$))?(?:(?:[-+]?\d+M)|(?:[-+]?\d+[.,]\d+M$))?(?:[-+]?\d+(?:[.,]\d+)?S)?)??$/;

// from https://stackoverflow.com/a/46181/1550155
// old version: too slow, didn't support unicode
// const emailRegex = /^((([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i;
//old email regex
// const emailRegex = /^(([^<>()[\].,;:\s@"]+(\.[^<>()[\].,;:\s@"]+)*)|(".+"))@((?!-)([^<>()[\].,;:\s@"]+\.)+[^<>()[\].,;:\s@"]{1,})[^-<>()[\].,;:\s@"]$/i;
// eslint-disable-next-line
// const emailRegex =
//   /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[(((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2}))\.){3}((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2}))\])|(\[IPv6:(([a-f0-9]{1,4}:){7}|::([a-f0-9]{1,4}:){0,6}|([a-f0-9]{1,4}:){1}:([a-f0-9]{1,4}:){0,5}|([a-f0-9]{1,4}:){2}:([a-f0-9]{1,4}:){0,4}|([a-f0-9]{1,4}:){3}:([a-f0-9]{1,4}:){0,3}|([a-f0-9]{1,4}:){4}:([a-f0-9]{1,4}:){0,2}|([a-f0-9]{1,4}:){5}:([a-f0-9]{1,4}:){0,1})([a-f0-9]{1,4}|(((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2}))\.){3}((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2})))\])|([A-Za-z0-9]([A-Za-z0-9-]*[A-Za-z0-9])*(\.[A-Za-z]{2,})+))$/;
// const emailRegex =
//   /^[a-zA-Z0-9\.\!\#\$\%\&\'\*\+\/\=\?\^\_\`\{\|\}\~\-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;
// const emailRegex =
//   /^(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])$/i;
const emailRegex = /^(?!\.)(?!.*\.\.)([A-Z0-9_'+\-\.]*)[A-Z0-9_+-]@([A-Z0-9][A-Z0-9\-]*\.)+[A-Z]{2,}$/i;
// const emailRegex =
//   /^[a-z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-z0-9-]+(?:\.[a-z0-9\-]+)*$/i;

// from https://thekevinscott.com/emojis-in-javascript/#writing-a-regular-expression
const _emojiRegex = `^(\\p{Extended_Pictographic}|\\p{Emoji_Component})+$`;
let emojiRegex: RegExp;

// faster, simpler, safer
const ipv4Regex =
  /^(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])$/;
const ipv4CidrRegex =
  /^(?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\.){3}(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\/(3[0-2]|[12]?[0-9])$/;

// const ipv6Regex =
// /^(([a-f0-9]{1,4}:){7}|::([a-f0-9]{1,4}:){0,6}|([a-f0-9]{1,4}:){1}:([a-f0-9]{1,4}:){0,5}|([a-f0-9]{1,4}:){2}:([a-f0-9]{1,4}:){0,4}|([a-f0-9]{1,4}:){3}:([a-f0-9]{1,4}:){0,3}|([a-f0-9]{1,4}:){4}:([a-f0-9]{1,4}:){0,2}|([a-f0-9]{1,4}:){5}:([a-f0-9]{1,4}:){0,1})([a-f0-9]{1,4}|(((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2}))\.){3}((25[0-5])|(2[0-4][0-9])|(1[0-9]{2})|([0-9]{1,2})))$/;
const ipv6Regex =
  /^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$/;
const ipv6CidrRegex =
  /^(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))\/(12[0-8]|1[01][0-9]|[1-9]?[0-9])$/;

// https://stackoverflow.com/questions/7860392/determine-if-string-is-in-base64-using-javascript
const base64Regex = /^([0-9a-zA-Z+/]{4})*(([0-9a-zA-Z+/]{2}==)|([0-9a-zA-Z+/]{3}=))?$/;

// https://base64.guru/standards/base64url
const base64urlRegex = /^([0-9a-zA-Z-_]{4})*(([0-9a-zA-Z-_]{2}(==)?)|([0-9a-zA-Z-_]{3}(=)?))?$/;

// simple
// const dateRegexSource = `\\d{4}-\\d{2}-\\d{2}`;
// no leap year validation
// const dateRegexSource = `\\d{4}-((0[13578]|10|12)-31|(0[13-9]|1[0-2])-30|(0[1-9]|1[0-2])-(0[1-9]|1\\d|2\\d))`;
// with leap year validation
const dateRegexSource = `((\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-((0[13578]|1[02])-(0[1-9]|[12]\\d|3[01])|(0[469]|11)-(0[1-9]|[12]\\d|30)|(02)-(0[1-9]|1\\d|2[0-8])))`;
const dateRegex = new RegExp(`^${dateRegexSource}$`);

function timeRegexSource(args: { precision?: number | null }) {
  let secondsRegexSource = `[0-5]\\d`;
  if (args.precision) {
    secondsRegexSource = `${secondsRegexSource}\\.\\d{${args.precision}}`;
  } else if (args.precision == null) {
    secondsRegexSource = `${secondsRegexSource}(\\.\\d+)?`;
  }

  const secondsQuantifier = args.precision ? "+" : "?"; // require seconds if precision is nonzero
  return `([01]\\d|2[0-3]):[0-5]\\d(:${secondsRegexSource})${secondsQuantifier}`;
}

function timeRegex(args: {
  offset?: boolean;
  local?: boolean;
  precision?: number | null;
}) {
  return new RegExp(`^${timeRegexSource(args)}$`);
}

// Adapted from https://stackoverflow.com/a/3143231
export function datetimeRegex(args: {
  precision?: number | null;
  offset?: boolean;
  local?: boolean;
}) {
  let regex = `${dateRegexSource}T${timeRegexSource(args)}`;

  const opts: string[] = [];
  opts.push(args.local ? `Z?` : `Z`);
  if (args.offset) opts.push(`([+-]\\d{2}:?\\d{2})`);
  regex = `${regex}(${opts.join("|")})`;
  return new RegExp(`^${regex}$`);
}

function isValidIP(ip: string, version?: IpVersion) {
  if ((version === "v4" || !version) && ipv4Regex.test(ip)) {
    return true;
  }
  if ((version === "v6" || !version) && ipv6Regex.test(ip)) {
    return true;
  }

  return false;
}

function isValidJWT(jwt: string, alg?: string): boolean {
  if (!jwtRegex.test(jwt)) return false;
  try {
    const [header] = jwt.split(".");
    if (!header) return false;
    // Convert base64url to base64
    const base64 = header
      .replace(/-/g, "+")
      .replace(/_/g, "/")
      .padEnd(header.length + ((4 - (header.length % 4)) % 4), "=");
    // @ts-ignore
    const decoded = JSON.parse(atob(base64));
    if (typeof decoded !== "object" || decoded === null) return false;
    if ("typ" in decoded && decoded?.typ !== "JWT") return false;
    if (!decoded.alg) return false;
    if (alg && decoded.alg !== alg) return false;
    return true;
  } catch {
    return false;
  }
}

function isValidCidr(ip: string, version?: IpVersion) {
  if ((version === "v4" || !version) && ipv4CidrRegex.test(ip)) {
    return true;
  }
  if ((version === "v6" || !version) && ipv6CidrRegex.test(ip)) {
    return true;
  }

  return false;
}

export class ZodString extends ZodType<string, ZodStringDef, string> {
  _parse(input: ParseInput): ParseReturnType<string> {
    if (this._def.coerce) {
      input.data = String(input.data);
    }
    const parsedType = this._getType(input);

    if (parsedType !== ZodParsedType.string) {
      const ctx = this._getOrReturnCtx(input);
      addIssueToContext(ctx, {
        code: ZodIssueCode.invalid_type,
        expected: ZodParsedType.string,
        received: ctx.parsedType,
      });
      return INVALID;
    }

    const status = new ParseStatus();
    let ctx: undefined | ParseContext = undefined;

    for (const check of this._def.checks) {
      if (check.kind === "min") {
        if (input.data.length < check.value) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.too_small,
            minimum: check.value,
            type: "string",
            inclusive: true,
            exact: false,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "max") {
        if (input.data.length > check.value) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.too_big,
            maximum: check.value,
            type: "string",
            inclusive: true,
            exact: false,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "length") {
        const tooBig = input.data.length > check.value;
        const tooSmall = input.data.length < check.value;
        if (tooBig || tooSmall) {
          ctx = this._getOrReturnCtx(input, ctx);
          if (tooBig) {
            addIssueToContext(ctx, {
              code: ZodIssueCode.too_big,
              maximum: check.value,
              type: "string",
              inclusive: true,
              exact: true,
              message: check.message,
            });
          } else if (tooSmall) {
            addIssueToContext(ctx, {
              code: ZodIssueCode.too_small,
              minimum: check.value,
              type: "string",
              inclusive: true,
              exact: true,
              message: check.message,
            });
          }
          status.dirty();
        }
      } else if (check.kind === "email") {
        if (!emailRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "email",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "emoji") {
        if (!emojiRegex) {
          emojiRegex = new RegExp(_emojiRegex, "u");
        }
        if (!emojiRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "emoji",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "uuid") {
        if (!uuidRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "uuid",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "nanoid") {
        if (!nanoidRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "nanoid",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "cuid") {
        if (!cuidRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "cuid",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "cuid2") {
        if (!cuid2Regex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "cuid2",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "ulid") {
        if (!ulidRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "ulid",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "url") {
        try {
          // @ts-ignore
          new URL(input.data);
        } catch {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "url",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "regex") {
        check.regex.lastIndex = 0;
        const testResult = check.regex.test(input.data);
        if (!testResult) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "regex",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "trim") {
        input.data = input.data.trim();
      } else if (check.kind === "includes") {
        if (!(input.data as string).includes(check.value, check.position)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.invalid_string,
            validation: { includes: check.value, position: check.position },
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "toLowerCase") {
        input.data = input.data.toLowerCase();
      } else if (check.kind === "toUpperCase") {
        input.data = input.data.toUpperCase();
      } else if (check.kind === "startsWith") {
        if (!(input.data as string).startsWith(check.value)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.invalid_string,
            validation: { startsWith: check.value },
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "endsWith") {
        if (!(input.data as string).endsWith(check.value)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.invalid_string,
            validation: { endsWith: check.value },
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "datetime") {
        const regex = datetimeRegex(check);

        if (!regex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.invalid_string,
            validation: "datetime",
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "date") {
        const regex = dateRegex;

        if (!regex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.invalid_string,
            validation: "date",
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "time") {
        const regex = timeRegex(check);

        if (!regex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.invalid_string,
            validation: "time",
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "duration") {
        if (!durationRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "duration",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "ip") {
        if (!isValidIP(input.data, check.version)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "ip",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "jwt") {
        if (!isValidJWT(input.data, check.alg)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "jwt",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "cidr") {
        if (!isValidCidr(input.data, check.version)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "cidr",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "base64") {
        if (!base64Regex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "base64",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "base64url") {
        if (!base64urlRegex.test(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            validation: "base64url",
            code: ZodIssueCode.invalid_string,
            message: check.message,
          });
          status.dirty();
        }
      } else {
        util.assertNever(check);
      }
    }

    return { status: status.value, value: input.data };
  }

  protected _regex(regex: RegExp, validation: StringValidation, message?: errorUtil.ErrMessage) {
    return this.refinement((data) => regex.test(data), {
      validation,
      code: ZodIssueCode.invalid_string,
      ...errorUtil.errToObj(message),
    });
  }

  _addCheck(check: ZodStringCheck) {
    return new ZodString({
      ...this._def,
      checks: [...this._def.checks, check],
    });
  }

  email(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "email", ...errorUtil.errToObj(message) });
  }

  url(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "url", ...errorUtil.errToObj(message) });
  }

  emoji(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "emoji", ...errorUtil.errToObj(message) });
  }

  uuid(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "uuid", ...errorUtil.errToObj(message) });
  }
  nanoid(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "nanoid", ...errorUtil.errToObj(message) });
  }
  cuid(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "cuid", ...errorUtil.errToObj(message) });
  }

  cuid2(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "cuid2", ...errorUtil.errToObj(message) });
  }
  ulid(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "ulid", ...errorUtil.errToObj(message) });
  }
  base64(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "base64", ...errorUtil.errToObj(message) });
  }
  base64url(message?: errorUtil.ErrMessage) {
    // base64url encoding is a modification of base64 that can safely be used in URLs and filenames
    return this._addCheck({
      kind: "base64url",
      ...errorUtil.errToObj(message),
    });
  }

  jwt(options?: { alg?: string; message?: string | undefined }) {
    return this._addCheck({ kind: "jwt", ...errorUtil.errToObj(options) });
  }

  ip(options?: string | { version?: IpVersion; message?: string | undefined }) {
    return this._addCheck({ kind: "ip", ...errorUtil.errToObj(options) });
  }

  cidr(options?: string | { version?: IpVersion; message?: string | undefined }) {
    return this._addCheck({ kind: "cidr", ...errorUtil.errToObj(options) });
  }

  datetime(
    options?:
      | string
      | {
          message?: string | undefined;
          precision?: number | null;
          offset?: boolean;
          local?: boolean;
        }
  ) {
    if (typeof options === "string") {
      return this._addCheck({
        kind: "datetime",
        precision: null,
        offset: false,
        local: false,
        message: options,
      });
    }
    return this._addCheck({
      kind: "datetime",

      precision: typeof options?.precision === "undefined" ? null : options?.precision,
      offset: options?.offset ?? false,
      local: options?.local ?? false,
      ...errorUtil.errToObj(options?.message),
    });
  }

  date(message?: string) {
    return this._addCheck({ kind: "date", message });
  }

  time(
    options?:
      | string
      | {
          message?: string | undefined;
          precision?: number | null;
        }
  ) {
    if (typeof options === "string") {
      return this._addCheck({
        kind: "time",
        precision: null,
        message: options,
      });
    }
    return this._addCheck({
      kind: "time",
      precision: typeof options?.precision === "undefined" ? null : options?.precision,
      ...errorUtil.errToObj(options?.message),
    });
  }

  duration(message?: errorUtil.ErrMessage) {
    return this._addCheck({ kind: "duration", ...errorUtil.errToObj(message) });
  }

  regex(regex: RegExp, message?: errorUtil.ErrMessage) {
    return this._addCheck({
      kind: "regex",
      regex: regex,
      ...errorUtil.errToObj(message),
    });
  }

  includes(value: string, options?: { message?: string; position?: number }) {
    return this._addCheck({
      kind: "includes",
      value: value,
      position: options?.position,
      ...errorUtil.errToObj(options?.message),
    });
  }

  startsWith(value: string, message?: errorUtil.ErrMessage) {
    return this._addCheck({
      kind: "startsWith",
      value: value,
      ...errorUtil.errToObj(message),
    });
  }

  endsWith(value: string, message?: errorUtil.ErrMessage) {
    return this._addCheck({
      kind: "endsWith",
      value: value,
      ...errorUtil.errToObj(message),
    });
  }

  min(minLength: number, message?: errorUtil.ErrMessage) {
    return this._addCheck({
      kind: "min",
      value: minLength,
      ...errorUtil.errToObj(message),
    });
  }

  max(maxLength: number, message?: errorUtil.ErrMessage) {
    return this._addCheck({
      kind: "max",
      value: maxLength,
      ...errorUtil.errToObj(message),
    });
  }

  length(len: number, message?: errorUtil.ErrMessage) {
    return this._addCheck({
      kind: "length",
      value: len,
      ...errorUtil.errToObj(message),
    });
  }

  /**
   * Equivalent to `.min(1)`
   */
  nonempty(message?: errorUtil.ErrMessage) {
    return this.min(1, errorUtil.errToObj(message));
  }

  trim() {
    return new ZodString({
      ...this._def,
      checks: [...this._def.checks, { kind: "trim" }],
    });
  }

  toLowerCase() {
    return new ZodString({
      ...this._def,
      checks: [...this._def.checks, { kind: "toLowerCase" }],
    });
  }

  toUpperCase() {
    return new ZodString({
      ...this._def,
      checks: [...this._def.checks, { kind: "toUpperCase" }],
    });
  }

  get isDatetime() {
    return !!this._def.checks.find((ch) => ch.kind === "datetime");
  }

  get isDate() {
    return !!this._def.checks.find((ch) => ch.kind === "date");
  }

  get isTime() {
    return !!this._def.checks.find((ch) => ch.kind === "time");
  }
  get isDuration() {
    return !!this._def.checks.find((ch) => ch.kind === "duration");
  }

  get isEmail() {
    return !!this._def.checks.find((ch) => ch.kind === "email");
  }

  get isURL() {
    return !!this._def.checks.find((ch) => ch.kind === "url");
  }

  get isEmoji() {
    return !!this._def.checks.find((ch) => ch.kind === "emoji");
  }

  get isUUID() {
    return !!this._def.checks.find((ch) => ch.kind === "uuid");
  }
  get isNANOID() {
    return !!this._def.checks.find((ch) => ch.kind === "nanoid");
  }
  get isCUID() {
    return !!this._def.checks.find((ch) => ch.kind === "cuid");
  }

  get isCUID2() {
    return !!this._def.checks.find((ch) => ch.kind === "cuid2");
  }
  get isULID() {
    return !!this._def.checks.find((ch) => ch.kind === "ulid");
  }
  get isIP() {
    return !!this._def.checks.find((ch) => ch.kind === "ip");
  }
  get isCIDR() {
    return !!this._def.checks.find((ch) => ch.kind === "cidr");
  }
  get isBase64() {
    return !!this._def.checks.find((ch) => ch.kind === "base64");
  }
  get isBase64url() {
    // base64url encoding is a modification of base64 that can safely be used in URLs and filenames
    return !!this._def.checks.find((ch) => ch.kind === "base64url");
  }

  get minLength() {
    let min: number | null = null;
    for (const ch of this._def.checks) {
      if (ch.kind === "min") {
        if (min === null || ch.value > min) min = ch.value;
      }
    }
    return min;
  }

  get maxLength() {
    let max: number | null = null;
    for (const ch of this._def.checks) {
      if (ch.kind === "max") {
        if (max === null || ch.value < max) max = ch.value;
      }
    }
    return max;
  }

  static create = (params?: RawCreateParams & { coerce?: true }): ZodString => {
    return new ZodString({
      checks: [],
      typeName: ZodFirstPartyTypeKind.ZodString,
      coerce: params?.coerce ?? false,
      ...processCreateParams(params),
    });
  };
}

/////////////////////////////////////////
/////////////////////////////////////////
//////////                     //////////
//////////      ZodNumber      //////////
//////////                     //////////
/////////////////////////////////////////
/////////////////////////////////////////
export type ZodNumberCheck =
  | { kind: "min"; value: number; inclusive: boolean; message?: string | undefined }
  | { kind: "max"; value: number; inclusive: boolean; message?: string | undefined }
  | { kind: "int"; message?: string | undefined }
  | { kind: "multipleOf"; value: number; message?: string | undefined }
  | { kind: "finite"; message?: string | undefined };

// https://stackoverflow.com/questions/3966484/why-does-modulus-operator-return-fractional-number-in-javascript/31711034#31711034
function floatSafeRemainder(val: number, step: number) {
  const valDecCount = (val.toString().split(".")[1] || "").length;
  const stepDecCount = (step.toString().split(".")[1] || "").length;
  const decCount = valDecCount > stepDecCount ? valDecCount : stepDecCount;
  const valInt = Number.parseInt(val.toFixed(decCount).replace(".", ""));
  const stepInt = Number.parseInt(step.toFixed(decCount).replace(".", ""));
  return (valInt % stepInt) / 10 ** decCount;
}

export interface ZodNumberDef extends ZodTypeDef {
  checks: ZodNumberCheck[];
  typeName: ZodFirstPartyTypeKind.ZodNumber;
  coerce: boolean;
}

export class ZodNumber extends ZodType<number, ZodNumberDef, number> {
  _parse(input: ParseInput): ParseReturnType<number> {
    if (this._def.coerce) {
      input.data = Number(input.data);
    }
    const parsedType = this._getType(input);
    if (parsedType !== ZodParsedType.number) {
      const ctx = this._getOrReturnCtx(input);
      addIssueToContext(ctx, {
        code: ZodIssueCode.invalid_type,
        expected: ZodParsedType.number,
        received: ctx.parsedType,
      });
      return INVALID;
    }

    let ctx: undefined | ParseContext = undefined;
    const status = new ParseStatus();

    for (const check of this._def.checks) {
      if (check.kind === "int") {
        if (!util.isInteger(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.invalid_type,
            expected: "integer",
            received: "float",
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "min") {
        const tooSmall = check.inclusive ? input.data < check.value : input.data <= check.value;
        if (tooSmall) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.too_small,
            minimum: check.value,
            type: "number",
            inclusive: check.inclusive,
            exact: false,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "max") {
        const tooBig = check.inclusive ? input.data > check.value : input.data >= check.value;
        if (tooBig) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.too_big,
            maximum: check.value,
            type: "number",
            inclusive: check.inclusive,
            exact: false,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "multipleOf") {
        if (floatSafeRemainder(input.data, check.value) !== 0) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.not_multiple_of,
            multipleOf: check.value,
            message: check.message,
          });
          status.dirty();
        }
      } else if (check.kind === "finite") {
        if (!Number.isFinite(input.data)) {
          ctx = this._getOrReturnCtx(input, ctx);
          addIssueToContext(ctx, {
            code: ZodIssueCode.not_finite,
            message: check.message,
          });
          status.dirty();
        }
      } else {
        util.assertNever(check);
      }
    }

    return { status: status.value, value: input.data };
  }

  static create = (params?: RawCreateParams & { coerce?: boolean }): ZodNumber => {
    return new ZodNumber({
      checks: [],
      typeName: ZodFirstPartyTypeKind.ZodNumber,
      coerce: params?.coerce ||