import { cloneDeep, merge } from 'lodash-es';
import { BaseService, service } from '../service';
import type { Module } from '../types';
import { path2Obj } from '../utils';
import { config, isDev } from '/@/config';
import { eps } from 'virtual:eps';
import { hmr } from '../hooks';
import { module } from '../module';

// 更新事件
function onUpdate() {
	// 设置 request 方法
	function set(d: any) {
		if (d.namespace) {
			const a = new BaseService(d.namespace);

			for (const i in d) {
				const { path, method = 'get' } = d[i];

				if (path) {
					a.request = a.request;

					// @ts-ignore
					a[i] = function (data?: any) {
						return this.request({
							url: path,
							method,
							[method.toLocaleLowerCase() == 'post' ? 'data' : 'params']: data
						});
					};
				}
			}

			for (const i in a) {
				// @ts-ignore
				d[i] = a[i];
			}
		} else {
			for (const i in d) {
				set(d[i]);
			}
		}
	}

	// 遍历每一个方法
	set(eps.service);

	// 合并 eps
	merge(service, eps.service);

	// 合并[local]
	merge(
		service,
		cloneDeep(
			path2Obj(
				module.list.reduce((a, b) => {
					return a.concat(...((b.services as any[]) || []));
				}, [])
			)
		)
	);

	// 热更新处理
	hmr.setData('service', service);

	// 提示
	if (isDev) {
		console.log('[cool-eps] updated');
	}
}

export function createEps(modules: Module[]) {
	// 更新 eps
	onUpdate();

	// 开发环境下，生成本地 service 的类型描述文件
	if (isDev && config.test.eps) {
		const list: any[] = [];

		// 模拟 eps 数据
		modules.forEach(m => {
			m.services?.forEach(s => {
				const api = Array.from(
					new Set([
						...Object.getOwnPropertyNames(s.value.constructor.prototype),
						'page',
						'list',
						'info',
						'delete',
						'update',
						'add'
					])
				)
					.filter(e => !['constructor', 'namespace'].includes(e))
					.map(e => {
						return {
							path: `/${e}`
						};
					});

				list.push({
					api,
					module: m.name,
					name: s.value.constructor.name + 'Entity',
					prefix: `/admin/${s.path}`,
					isLocal: true
				});
			});
		});

		// 生成文件
		service.request({
			url: '/__cool_eps',
			method: 'POST',
			proxy: false,
			data: {
				list
			}
		});
	}
}

// 监听 vite 触发事件
if (import.meta.hot) {
	import.meta.hot.on('eps-update', ({ service }) => {
		if (service) {
			eps.service = service;
		}
		onUpdate();
	});
}