@tunnel-cast/nestjs/interceptors/cast-interceptor-factory.js

## About This is a Tunnel-Cast - NestJS integration package, wrap the `cast` application into the `NestJS` building blocks.

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.CastInterceptorFactory = exports.CastInterceptor = void 0;
const common_1 = require("@nestjs/common");
const constants_1 = require("../constants");
const errors_1 = require("../errors");
const cast_1 = require("@tunnel-cast/common/cast");
const storage_1 = require("../storage");
function CastInterceptor(model, fieldKey) {
    let MixinInterceptor = class MixinInterceptor {
        constructor(storage, options) {
            this.storage = storage;
            this.options = options;
        }
        async intercept(context, next) {
            const ctx = context.switchToHttp();
            const req = ctx.getRequest();
            const res = ctx.getResponse();
            const castResult = cast_1.cast(model, req[fieldKey]);
            if (castResult.errors) {
                throw new errors_1.InvalidCastException(this.options.transformError(castResult.errors));
            }
            else {
                req[fieldKey] = castResult.value;
            }
            return next.handle();
        }
    };
    MixinInterceptor = __decorate([
        __param(0, common_1.Inject(constants_1.CAST_METADATA_STORAGE)),
        __param(1, common_1.Optional()), __param(1, common_1.Inject(constants_1.CAST_MODULE_OPTIONS)),
        __metadata("design:paramtypes", [storage_1.MetadataStorage, Object])
    ], MixinInterceptor);
    const Interceptor = common_1.mixin(MixinInterceptor);
    return Interceptor;
}
exports.CastInterceptor = CastInterceptor;
function CastInterceptorFactory(fieldKey) {
    return (model) => CastInterceptor(model, fieldKey);
}
exports.CastInterceptorFactory = CastInterceptorFactory;
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