map-transform-cjs/dist/transformers/project.js

MapTransform with CJS support

// src/transformers/project.ts
import mapAny3 from "map-any-cjs";

// src/operations/getSet.ts
import mapAny2 from "map-any-cjs";

// src/utils/stateHelpers.ts
var getLastContext = (state) => state.context[state.context.length - 1];
var getRootFromState = (state) => state.context.length === 0 ? state.value : state.context[0];
var isNonvalue = (value, nonvalues = [void 0]) => nonvalues.includes(value);

// src/utils/is.ts
var isObject = (value) => Object.prototype.toString.call(value) === "[object Object]";
var isString = (value) => typeof value === "string";
var isNonEmptyArray = (value) => Array.isArray(value) && value.length > 0;

// src/utils/array.ts
var ensureArray = (value, nonvalues) => Array.isArray(value) ? value : isNonvalue(value, nonvalues) ? [] : [value];

// src/operations/merge.ts
import deepmerge from "deepmerge";

// src/operations/lookup.ts
import mapAny from "map-any-cjs/async.js";

// src/operations/getSet.ts
function flatMapAny(fn) {
  return (value, target) => Array.isArray(value) ? value.flatMap((value2) => fn(value2, target)) : fn(value, target);
}
function handleArrayPath(path) {
  if (path.endsWith("][")) {
    return [
      path.slice(0, path.length - 2),
      false,
      true
      /* isIndexProp */
    ];
  }
  const pos = path.indexOf("[");
  if (path[pos - 1] === "\\") {
    return [path.replace("\\[", "["), false, false];
  } else {
    const isArr = path[pos + 1] === "]";
    return [path.slice(0, pos), isArr, false];
  }
}
function preparePath(path) {
  if (typeof path === "string") {
    if (path.includes("[")) {
      return handleArrayPath(path);
    } else if (path.startsWith("\\$")) {
      return [path.slice(1), false, false];
    }
  }
  return [path, false, false];
}
var calculateIndex = (index, arr) => index >= 0 ? index : arr.length + index;
function getParent(state) {
  const nextValue = getLastContext(state);
  const nextContext = state.context.slice(0, -1);
  return { ...state, context: nextContext, value: nextValue };
}
function getRoot(state) {
  const nextValue = getRootFromState(state);
  return { ...state, context: [], value: nextValue };
}
function resolveArrayNotation(path, pos) {
  const index = Number.parseInt(path.slice(pos + 1), 10);
  if (!Number.isNaN(index)) {
    const basePath = path.slice(0, pos).trim();
    return basePath ? [`${basePath}][`, index] : [index];
  } else {
    return path.trim();
  }
}
function resolveParentNotation(path) {
  if (path.startsWith("^^") && path.length > 2) {
    return ["^^", path.slice(2).trim()];
  } else if (path.length > 1 && path !== "^^") {
    return ["^^", path.slice(1).trim()];
  } else {
    return path.trim();
  }
}
function splitUpArrayAndParentNotation(path) {
  const pos = path.indexOf("[");
  if (pos > -1 && path[pos - 1] !== "\\") {
    return resolveArrayNotation(path, pos);
  } else if (path.startsWith("^")) {
    return resolveParentNotation(path);
  } else {
    return path.trim();
  }
}
var getByPart = (part, isArr) => (value) => {
  if (typeof part === "string") {
    if (isObject(value)) {
      const nextValue = value[part];
      return isArr ? ensureArray(nextValue) : nextValue;
    }
  } else if (typeof part === "number" && Array.isArray(value)) {
    return value[calculateIndex(part, value)];
  }
  return isArr ? [] : void 0;
};
function prepareGetFn([part, isArr]) {
  if (typeof part === "string" && part[0] === "^") {
    const isRoot = part[1] === "^";
    return (_value, state) => {
      const nextState = isRoot ? getRoot(state) : getParent(state);
      return [nextState.value, nextState];
    };
  } else if (typeof part === "number") {
    const fn = getByPart(part, isArr);
    return (value) => [fn(value), void 0];
  } else {
    const fn = flatMapAny(getByPart(part, isArr));
    return (value) => [fn(value), void 0];
  }
}
function pathGetter(path, _options = {}) {
  if (!path || path === ".") {
    return (value) => value;
  }
  const parts = path.split(".").flatMap(splitUpArrayAndParentNotation).map(preparePath).map(prepareGetFn);
  return function getFromPath(value, startState) {
    let data = value;
    let state = startState;
    for (const partOrGetFn of parts) {
      ;
      [data, state = state] = partOrGetFn(data, state);
    }
    return data;
  };
}

// src/transformers/project.ts
var projectProps = (rawProps, doInclude) => {
  const props2 = rawProps.filter(isString);
  const filterFn = doInclude ? ([key]) => props2.includes(key) : ([key]) => !props2.includes(key);
  return (obj) => Object.fromEntries(Object.entries(obj).filter(filterFn));
};
var projectPropsFromPath = (path, rawProps, doInclude) => {
  const getFn = pathGetter(path);
  return (obj, state) => {
    let props2 = getFn(obj, state);
    if (props2 === void 0) {
      props2 = rawProps;
    }
    if (!props2) {
      return obj;
    }
    return projectProps(ensureArray(props2), doInclude)(obj);
  };
};
function prepareProjectFn(include, includePath, exclude, excludePath) {
  if (typeof includePath === "string") {
    return projectPropsFromPath(includePath, include, true);
  } else if (typeof excludePath === "string") {
    return projectPropsFromPath(excludePath, exclude, false);
  } else if (isNonEmptyArray(include)) {
    return projectProps(include, true);
  } else if (isNonEmptyArray(exclude)) {
    return projectProps(exclude, false);
  } else {
    return (obj) => obj;
  }
}
var transformer = function bucket({
  include,
  includePath,
  exclude,
  excludePath
}) {
  const projectFn = prepareProjectFn(include, includePath, exclude, excludePath);
  return () => (data, state) => mapAny3(
    (data2) => isObject(data2) ? projectFn(data2, state) : void 0,
    data
  );
};
var project_default = transformer;
export {
  project_default as default
};
//# sourceMappingURL=project.js.map