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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.TransformPlainToClass = exports.TransformClassToClass = exports.TransformClassToPlain = exports.Exclude = exports.Expose = exports.Type = exports.Transform = void 0;
const ClassTransformer_1 = require("./ClassTransformer");
const storage_1 = require("./storage");
const TypeMetadata_1 = require("./metadata/TypeMetadata");
const ExposeMetadata_1 = require("./metadata/ExposeMetadata");
const ExcludeMetadata_1 = require("./metadata/ExcludeMetadata");
const TransformMetadata_1 = require("./metadata/TransformMetadata");
/**
 * Defines a custom logic for value transformation.
 */
function Transform(transformFn, options) {
    return function (target, key) {
        const metadata = new TransformMetadata_1.TransformMetadata(target.constructor, key, transformFn, options);
        storage_1.defaultMetadataStorage.addTransformMetadata(metadata);
    };
}
exports.Transform = Transform;
/**
 * Specifies a type of the property.
 * The given TypeFunction can return a constructor. A discriminator can be given in the options.
 */
function Type(typeFunction, options) {
    return function (target, key) {
        const type = Reflect.getMetadata('design:type', target, key);
        const metadata = new TypeMetadata_1.TypeMetadata(target.constructor, key, type, typeFunction, options);
        storage_1.defaultMetadataStorage.addTypeMetadata(metadata);
    };
}
exports.Type = Type;
/**
 * Marks property as included in the process of transformation. By default it includes the property for both
 * constructorToPlain and plainToConstructor transformations, however you can specify on which of transformation types
 * you want to skip this property.
 */
function Expose(options) {
    return function (object, propertyName) {
        const metadata = new ExposeMetadata_1.ExposeMetadata(object instanceof Function ? object : object.constructor, propertyName, options || {});
        storage_1.defaultMetadataStorage.addExposeMetadata(metadata);
    };
}
exports.Expose = Expose;
/**
 * Marks property as excluded from the process of transformation. By default it excludes the property for both
 * constructorToPlain and plainToConstructor transformations, however you can specify on which of transformation types
 * you want to skip this property.
 */
function Exclude(options) {
    return function (object, propertyName) {
        const metadata = new ExcludeMetadata_1.ExcludeMetadata(object instanceof Function ? object : object.constructor, propertyName, options || {});
        storage_1.defaultMetadataStorage.addExcludeMetadata(metadata);
    };
}
exports.Exclude = Exclude;
/**
 * Transform the object from class to plain object and return only with the exposed properties.
 */
function TransformClassToPlain(params) {
    return function (target, propertyKey, descriptor) {
        const classTransformer = new ClassTransformer_1.ClassTransformer();
        const originalMethod = descriptor.value;
        descriptor.value = function (...args) {
            const result = originalMethod.apply(this, args);
            const isPromise = !!result && (typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function';
            return isPromise
                ? result.then((data) => classTransformer.classToPlain(data, params))
                : classTransformer.classToPlain(result, params);
        };
    };
}
exports.TransformClassToPlain = TransformClassToPlain;
/**
 * Return the class instance only with the exposed properties.
 */
function TransformClassToClass(params) {
    return function (target, propertyKey, descriptor) {
        const classTransformer = new ClassTransformer_1.ClassTransformer();
        const originalMethod = descriptor.value;
        descriptor.value = function (...args) {
            const result = originalMethod.apply(this, args);
            const isPromise = !!result && (typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function';
            return isPromise
                ? result.then((data) => classTransformer.classToClass(data, params))
                : classTransformer.classToClass(result, params);
        };
    };
}
exports.TransformClassToClass = TransformClassToClass;
/**
 * Return the class instance only with the exposed properties.
 */
function TransformPlainToClass(classType, params) {
    return function (target, propertyKey, descriptor) {
        const classTransformer = new ClassTransformer_1.ClassTransformer();
        const originalMethod = descriptor.value;
        descriptor.value = function (...args) {
            const result = originalMethod.apply(this, args);
            const isPromise = !!result && (typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function';
            return isPromise
                ? result.then((data) => classTransformer.plainToClass(classType, data, params))
                : classTransformer.plainToClass(classType, result, params);
        };
    };
}
exports.TransformPlainToClass = TransformPlainToClass;
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