import db from "../utils/db";
export default {
	createTalbe() {
		return db.executeSql(`
			CREATE TABLE IF NOT EXISTS chat_groups (
				  group_id INTEGER,
				  user_id INTEGER,
			      realname TEXT,
				  avatar TEXT,
				  displayName TEXT,
				  email TEXT,
				  unread INTEGER,
				  name_py TEXT,
				  owner_id INTEGER,
				  notice TEXT,
				  is_blacklist TEXT,
				  role INTEGER,
				  is_notice INTEGER,
				  is_top INTEGER,
				  setting TEXT,
				  id INTEGER,
				  account TEXT,
				  is_group TEXT,
				  group_index TEXT,
				  is_online INTEGER,
				  is_at INTEGER,
				  type TEXT,
				  lastContent TEXT,
				  lastSendTime INTEGER,
				  location TEXT,
				  last_login_ip TEXT
			    )
		`)
	},
	async getList() {
		try {
			const res = await db.selectSql('select * from chat_groups');
			console.log('原始查询结果:', res); // 查看原始数据结构
			return res;
		} catch (error) {
			console.error('查询失败:', error);
			return [];
		}
	},
	
	async deleteallList(){
		try {
			await db.executeSql('DELETE FROM chat_groups');
			return true;
		}catch (error) {
			console.error('删除失败:', error);
			return false;
		}
	},

	// 批量插入/更新数据
	async batchInsertOrUpdate(groupData) {
		if (!Array.isArray(groupData)) {
			throw new Error('数据必须为数组格式');
		}

		const dbInstance = await db.createDatabase();
		try {

			// 开启事务
			await db.executeSql('BEGIN IMMEDIATE TRANSACTION');

			// 清空旧数据（根据需求决定是否需要）
			await db.executeSql('DELETE FROM chat_groups');
			// console.log('DELETE 操作执行完成');
			const [checkRes] = await db.selectSql('SELECT COUNT(*) AS count FROM chat_groups');
			// console.info('删除表中记录',checkRes.count);
			if (checkRes.count !== 0) {
				throw new Error('数据删除验证失败，表中仍存在记录');
				return true;
			}
			// console.info(groupData);
			// 构建批量插入语句
			const insertPromises = groupData.map(async (item) => {
				// 字段值预处理
				const processedItem = {
					group_id: item.group_id ?? null,
					user_id: item.user_id ?? null,
					realname: item.realname || '',
					avatar: item.avatar || '',
					displayName: item.displayName || '',
					email: item.email || '',
					unread: Number(item.unread) || 0,
					name_py: item.name_py || '',
					owner_id: Number(item.owner_id) || 0,
					notice: item.notice || '',
					is_blacklist: item.is_blacklist || null,
					role: Number(item.role) || 0,
					is_notice: item.is_notice || null,
					is_top: JSON.stringify(item.is_top) || null,
					setting: item.setting ? JSON.stringify(item.setting) : '{}',
					id: item.id,
					account: item.account || '',
					is_group: JSON.stringify(item.is_group) || '',
					group_index: String(item.index || ''),
					is_online: item.is_online || null,
					is_at: JSON.stringify(item.is_at) || null,
					type: item.type || null,
					lastContent: item.lastContent||'',
					lastSendTime: Number(item.lastSendTime) || Date.now(),
					location: item.location || '',
					last_login_ip: item.last_login_ip || ''
				};
				// 删除原接口中的index字段
				// delete processedItem.index;

				// 提取值数组（注意顺序要与SQL语句中的字段顺序一致）
				const values = [
					processedItem.group_id,
					processedItem.user_id,
					processedItem.realname,
					processedItem.avatar,
					processedItem.displayName,
					processedItem.email,
					processedItem.unread,
					processedItem.name_py,
					processedItem.owner_id,
					processedItem.notice,
					processedItem.is_blacklist,
					processedItem.role,
					processedItem.is_notice,
					processedItem.is_top,
					processedItem.setting,
					processedItem.id,
					processedItem.account,
					processedItem.is_group,
					processedItem.group_index,
					processedItem.is_online,
					processedItem.is_at,
					processedItem.type,
					processedItem.lastContent,
					processedItem.lastSendTime,
					processedItem.location,
					processedItem.last_login_ip
				];
				let value_str = "'" + values.join("','") + "'"
				// console.info(values);
				// 构建INSERT语句
				const sql = `
	            INSERT OR REPLACE INTO chat_groups (
	              group_id,user_id, realname, avatar, displayName, email, unread, name_py,
	              owner_id, notice, is_blacklist, role, is_notice, is_top,
	              setting, id, account, is_group, group_index,
	              is_online, is_at, type,
	              lastContent, lastSendTime,location,last_login_ip
	            ) VALUES (` + value_str + `)
	        `;
				return db.executeSql(sql);
			});
			// console.info(insertPromises,'1111');
			await Promise.all(insertPromises);
			await db.executeSql('COMMIT');
			console.log('首页数据同步成功，插入/更新', groupData.length, '条记录');
			return true;
		} catch (error) {
			await db.executeSql('ROLLBACK');
			console.error('数据同步失败:', error);
			throw new Error('数据同步失败: ' + error.message);
		}
	}
}