@wener/console/lib/jsonschema/createFromJsonSchema.js

Base console UI toolkit

import { set } from "es-toolkit/compat";
/**
 *  Returns an Object containing all defaults from a schema
 */ export function createFromJsonSchema(root) {
    // https://github.com/mdornseif/json-schema-default/blob/main/src/lib/json-schema-default.ts
    const out = root.default || {};
    let schema = root;
    const handle = ({ schema, path, required })=>{
        if (!schema) return;
        if (schema.default !== undefined) {
            set(out, path, schema.default);
        } else if (required) {
            let def = null;
            switch(schema.type){
                case 'string':
                    def = '';
                    break;
                case 'number':
                    def = 0;
                    break;
                case 'boolean':
                    def = false;
                    break;
                case 'array':
                    def = [];
                    break;
                case 'object':
                    def = {};
                    break;
            }
            set(out, path, def);
        }
        switch(schema.type){
            case 'object':
                if (schema.properties) {
                    let keys = schema.required || Object.keys(schema.properties);
                    for (const key of keys){
                        let property = schema.properties[key];
                        typeof property === 'object' && handle({
                            schema: property,
                            path: path.concat(key),
                            parent: schema,
                            required: schema.required?.includes(key)
                        });
                    }
                }
                break;
            case 'array':
                if (schema.items) {
                    if (schema.default) {
                        set(out, path, schema.default);
                    }
                }
                break;
        }
    };
    handle({
        schema,
        path: []
    });
    return out;
}

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