const express = require('express');
const router = express.Router();
const db = require('../db');
const auth = require('../middleware/auth');

router.use(auth);

// 获取所有租户 (含搜索)
router.get('/', async (req, res) => {
    try {
        const { search } = req.query;
        let query = 'SELECT * FROM tenants WHERE user_id = ?';
        let params = [req.user.username];

        if (search) {
            query += ' AND name LIKE ?';
            params.push(`%${search}%`);
        }

        query += ' ORDER BY created_at DESC';
        const [rows] = await db.query(query, params);
        res.json(rows);
    } catch (err) {
        res.status(500).json({ error: err.message });
    }
});

// 新增租户
router.post('/', async (req, res) => {
    try {
        const tenant = req.body;

        // 特殊逻辑：标品PP下 entCode 默认等于 apiKey
        if (tenant.type === '标品PP' && !tenant.entCode) {
            tenant.entCode = tenant.apiKey;
        }

        const [result] = await db.query(
            'INSERT INTO tenants (user_id, name, type, app_key, app_secret, api_key, ent_code, bu_id, ent_id, private_key, public_key) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)',
            [
                req.user.username,
                tenant.name,
                tenant.type,
                tenant.appKey || null,
                tenant.appSecret || null,
                tenant.apiKey || null,
                tenant.entCode || null,
                tenant.buId || null,
                tenant.entId || null,
                tenant.privateKey || null,
                tenant.publicKey || null
            ]
        );
        res.json({ id: result.insertId, ...tenant });
    } catch (err) {
        res.status(500).json({ error: err.message });
    }
});

// 更新租户
router.put('/:id', async (req, res) => {
    try {
        const { id } = req.params;
        const tenant = req.body;

        await db.query(
            `UPDATE tenants SET
                name = ?,
                type = ?,
                app_key = ?,
                app_secret = ?,
                api_key = ?,
                ent_code = ?,
                bu_id = ?,
                ent_id = ?,
                private_key = ?,
                public_key = ?
            WHERE id = ? AND user_id = ?`,
            [
                tenant.name,
                tenant.type,
                tenant.appKey || null,
                tenant.appSecret || null,
                tenant.apiKey || null,
                tenant.entCode || null,
                tenant.buId || null,
                tenant.entId || null,
                tenant.privateKey || null,
                tenant.publicKey || null,
                id,
                req.user.username
            ]
        );
        res.json({ message: 'Updated successfully' });
    } catch (err) {
        res.status(500).json({ error: err.message });
    }
});

// 删除租户
router.delete('/:id', async (req, res) => {
    try {
        const { id } = req.params;
        await db.query('DELETE FROM tenants WHERE id = ? AND user_id = ?', [id, req.user.username]);
        res.json({ message: 'Deleted successfully' });
    } catch (err) {
        res.status(500).json({ error: err.message });
    }
});

// 复制租户
router.post('/copy/:id', async (req, res) => {
    try {
        const { id } = req.params;
        const [rows] = await db.query('SELECT * FROM tenants WHERE id = ? AND user_id = ?', [id, req.user.username]);

        if (rows.length === 0) {
            return res.status(404).json({ error: 'Tenant not found' });
        }

        const tenant = rows[0];
        const [result] = await db.query(
            'INSERT INTO tenants (user_id, name, type, app_key, app_secret, api_key, ent_code, bu_id, ent_id, private_key, public_key) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)',
            [
                req.user.username,
                `${tenant.name} (Copy)`,
                tenant.type,
                tenant.app_key,
                tenant.app_secret,
                tenant.api_key,
                tenant.ent_code,
                tenant.bu_id,
                tenant.ent_id,
                tenant.private_key,
                tenant.public_key
            ]
        );
        res.json({ id: result.insertId, message: 'Copied successfully' });
    } catch (err) {
        res.status(500).json({ error: err.message });
    }
});

module.exports = router;