@vladbasin/strong-api-mapping/dist/defineDecorator.js

Strongly typed API models. Mapping & validation

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.defineDecorator = void 0;
const lodash_1 = require("lodash");
const _1 = require(".");
const defineDecorator = (options) => {
    return (target, key) => {
        var _a, _b;
        const mappings = [...(0, _1.getMappingMetadata)(target)];
        const propName = key.toString();
        const propType = Reflect.getMetadata('design:type', target, key);
        let isArray = false;
        let parser = (0, _1.wrapParserForNilAndBoolValues)((_a = options.parser) !== null && _a !== void 0 ? _a : propType);
        if (propType.name === 'Array') {
            if ((0, lodash_1.isNil)(options.parser)) {
                throw new _1.InvalidMappingError(`Parser is required for array property types (property = ${propName}). It will be used to parse array items`);
            }
            isArray = true;
            const nilWrappedParser = (0, _1.wrapParserForNilAndBoolValues)(parser);
            parser = (arg) => {
                if (!(0, lodash_1.isNil)(arg) && arg.constructor.name !== 'Array') {
                    const result = nilWrappedParser(arg);
                    if (result.constructor.name !== 'Array') {
                        throw new _1.InvalidMappingError(`Property ${propName} cannot be mapped, because value is not array or specified parser cannot convert it into array`);
                    }
                    return result;
                }
                return (arg === null || arg === void 0 ? void 0 : arg.map(t => nilWrappedParser(t))) || [];
            };
        }
        mappings.push({
            isCustom: options.isCustom,
            propName,
            source: options.source,
            sourceKey: options.useKey ? (_b = options.key) !== null && _b !== void 0 ? _b : propName : undefined,
            isKeyCaseSensitive: options.isKeyCaseSensitive,
            isArray,
            parser,
            priority: options.priority || 0,
        });
        (0, _1.setMappingMetadata)(mappings, target);
    };
};
exports.defineDecorator = defineDecorator;
//# sourceMappingURL=defineDecorator.js.map