<?php

namespace app\admin\controller;

use app\admin\model\general\Lang as LangModel;
use app\common\controller\Backend;
use app\common\model\EmailTemplate as EmailTemplateModel;
use think\exception\ValidateException;

class Emailtemplate extends Backend
{
    protected $modelClass = null;
    protected $modelValidate = false;

    protected function initialize()
    {
        parent::initialize();
        $this->modelClass = new EmailTemplateModel();
        $this->assign('statusList', $this->modelClass->getStatusList());
        $this->assign('typeList', $this->modelClass->getTypeList());
        $this->assign('langList', LangModel::getEnabledList());
        $this->assign('defaultLang', LangModel::getDefaultMark());
        $this->assign('templateVariableMap', $this->getTemplateVariableMap());
    }

    public function index()
    {
        if ($this->request->isAjax()) {
            $page = (int)$this->request->param('page/d', 1);
            $limit = (int)$this->request->param('limit/d', 20);
            $sort = (string)$this->request->param('sort/s', 'id');
            $order = (string)$this->request->param('order/s', 'desc');
            $lang = trim((string)$this->request->param('lang/s', ''));
            $type = trim((string)$this->request->param('type/s', ''));
            $status = $this->request->param('status/s', '');
            $keyword = trim((string)$this->request->param('keyword/s', ''));

            $query = $this->modelClass;
            if ($lang !== '') {
                $query = $query->where('lang', $lang);
            }
            if ($type !== '') {
                $query = $query->where('type', $type);
            }
            if ($status !== '') {
                $query = $query->where('status', (int)$status);
            }
            if ($keyword !== '') {
                $query = $query->whereLike('name|subject', '%' . $keyword . '%');
            }

            $count = $query->count();
            $data = $query->order($sort, $order)->page($page, $limit)->select();
            return json(['code' => 0, 'count' => $count, 'data' => $data]);
        }
        return $this->fetch();
    }

    public function add()
    {
        if ($this->request->isPost()) {
            $this->token();
            $params = $this->buildParams();
            $params['createtime'] = time();
            try {
                $this->validate($params, 'app\\admin\\validate\\EmailTemplate');
                $this->modelClass->save($params);
            } catch (ValidateException | \Exception $e) {
                $this->error($e->getMessage());
            }
            $this->success('新增成功');
        }
        return $this->fetch();
    }

    public function edit()
    {
        $id = $this->request->param('id/d', 0);
        $row = $this->modelClass->find($id);
        if (!$row) {
            $this->error('记录未找到');
        }

        if ($this->request->isPost()) {
            $this->token();
            $params = $this->buildParams();
            try {
                $this->validate($params, 'app\\admin\\validate\\EmailTemplate');
                $row->save($params);
            } catch (ValidateException | \Exception $e) {
                $this->error($e->getMessage());
            }
            $this->success('编辑成功');
        }

        $this->assign('data', $row);
        return $this->fetch();
    }

    public function del()
    {
        if (!$this->request->isPost()) {
            $this->error('请求方式错误');
        }
        $ids = $this->request->param('id/a', []);
        if (empty($ids)) {
            $ids = $this->request->post('ids/a', []);
        }
        if (empty($ids)) {
            $this->error('请先选择模板');
        }
        $this->modelClass->where('id', 'in', $ids)->delete();
        $this->success('删除成功');
    }

    protected function buildParams(): array
    {
        $row = $this->request->post('row/a', [], 'trim');
        $now = time();

        return [
            'name' => (string)($row['name'] ?? ''),
            'code' => (string)($row['code'] ?? ''),
            'lang' => strtolower((string)($row['lang'] ?? LangModel::getDefaultMark())),
            'type' => (string)($row['type'] ?? ''),
            'subject' => (string)($row['subject'] ?? ''),
            'content' => (string)($row['content'] ?? ''),
            'variables' => $this->buildVariablesText((string)($row['type'] ?? '')),
            'remark' => (string)($row['remark'] ?? ''),
            'status' => (int)($row['status'] ?? 1),
            'listorder' => (int)($row['listorder'] ?? 100),
            'updatetime' => $now,
        ];
    }

    protected function getTemplateVariableMap(): array
    {
        return [
            'subscribe_auto' => [
                '{{email}}：订阅邮箱',
                '{{lang}}：订阅语言',
                '{{unsubscribe_url}}：退订链接',
            ],
            'subscribe_manual' => [
                '{{email}}：订阅邮箱',
                '{{lang}}：订阅语言',
                '{{unsubscribe_url}}：退订链接',
            ],
            'marketing_broadcast' => [
                '{{email}}：订阅邮箱',
                '{{lang}}：订阅语言',
                '{{unsubscribe_url}}：退订链接',
                '{{broadcast_name}}：群发任务名称',
                '{{broadcast_id}}：群发任务ID',
                '{{template_name}}：当前邮件模板名称',
            ],
        ];
    }

    protected function buildVariablesText(string $type): string
    {
        $map = $this->getTemplateVariableMap();
        $type = trim($type);
        if ($type === '' || empty($map[$type])) {
            return '';
        }
        return implode(PHP_EOL, $map[$type]);
    }
}