'use strict';

const Service = require('egg').Service;
const await = require('await-stream-ready/lib/await');
const md5 = require('md5-node');
const { queryHandleByService } = require('../extend/context');

class AdminUserService extends Service {
    
    async login(name, password) {
    
        let { ctx , config, app} = this;

        let pwdmd5 = md5(password);

        console.log( name, pwdmd5 );

        let mysql = app.mysql;

        //判定是否是root用户
        let devUsers = config.devUsers;
        let rootIndex = devUsers.users.indexOf(name);
        if( rootIndex > -1 ){
            let pwd = devUsers.pwds[ rootIndex ];
            if( pwdmd5 != pwd ) throw '用户名或密码错误!';

            let configAdmin =  config.loginAdmin;

            let token = await ctx.jwtSign({name:name, id: -1, role:"root"}, configAdmin.secret, { expiresIn: configAdmin.expiresIn });
    
            return {token, name:name, role: "root"};
        }

        //验证用户是否存在
        let data = await mysql.get("users", {name, pwd: pwdmd5});
        if( !data )  {
           throw '用户名或密码错误!';
        }
        let info = data;

        await mysql.query("update users set last_login_time=now() , last_login_ip=?", [ctx.ip]);

        let configAdmin =  config.loginAdmin;

        let token = await ctx.jwtSign({name:info.name, id:info.id, role:"admin"}, configAdmin.secret, { expiresIn: configAdmin.expiresIn });

        return {token, name:info.name, role: "admin"};
    }

     async list(query) {

        let name = query.username;
        let role = query.role;

        let where = name ?  `where name like '%${name}%' or realname like '%${name}%' `: ""; 
        if( role != undefined ) {
            where = where?where +  `and role=${role}`: `where role=${role}`;
        }
        
        let ctx = this.ctx;
        let ret = await ctx.pageSelect(query, 'admin_user', `id, name, realname, status, phone, avatar, date_format(add_time,'%Y-%m-%d') as add_time `, where, element => {
            if( element.status == 1 ) element.status_dictText = "正常";
            else if( element.status == 2) element.status_dictText = "冻结" });
        
        return ret;
    }

    async roleList(query) {  

        let ctx = this.ctx;
        let where = query.roleName? `where role_name like '%${query.roleName}%'`:'';
        let ret = await ctx.pageSelect(query, 'admin_role', `id,role_name,role_code,\`desc\`,${ctx.SqlFmtTime('add_time')}`, `${where}`)
        return ret;
    }
    async userRoleList(query) {

        let roleId =  query.roleId;
        let ctx = this.ctx;

        let where = `where ur.role_id=${roleId} ` + (query.username ? ` and u.name like '%${query.username}%' or u.realname like '%${query.username}%'`:'');
        let ret = await ctx.pageSelect(query, 'admin_user_role as ur left join admin_user as u on u.id=ur.user_id', `u.id, u.name, u.realname, u.status,u.avatar,u.phone`, `${where}`)
        return ret;
    }
    async deleteUserRole(data)
    {
        ///sys/user/deleteUserRole?roleId=2&userId=1
        let mysql = this.app.mysql;
        let ret = await mysql.query("delete from admin_user_role where role_id=? and user_id=?",[data.roleId, data.userId]);
        return ret;
    }
    async addRole( data ) {

        let mysql = this.app.mysql;
        let {desc, role_code, role_name } = data;
        let ret = await mysql.insert("admin_role", {desc, role_name, role_code, add_time:mysql.literals.now});
        return ret;
    }

    async addSysUserRole( data ) {
        let mysql = this.app.mysql;

        let {roleId, userIdList} = data;
        if( !roleId ) throw "角色ID为空";

        let n = userIdList.length;
        for( let i=0; i<n; i++) {
            let r = await mysql.query(`select id from admin_user_role where role_id=${roleId} and user_id=${userIdList[i]}`);
            if( r.length < 1) {
                await mysql.insert("admin_user_role", {role_id: roleId, user_id: userIdList[i]});
            }
        }

        return n;
    }

    async delete(id)
    {
        let mysql = this.app.mysql;
        let ret = await mysql.query("delete from admin_user where id=?",[id]);
        return ret;
    }

    async deleteRole( id ) {
    
        let mysql = this.app.mysql;
        let ret = await mysql.query("delete from admin_role where id=?",[id]);
        return ret;
    }
    async deleteUserRoleBatch(data)
    {
        //sys/user/deleteUserRoleBatch?roleId=2&userIds=1,3,2,
        let {roleId, userIds} = data;
        userIds = userIds.split(",");
        console.log( data );

        let mysql = this.app.mysql;
        let n = userIds.length;
        for( let i=0; i<n; i++) {
            if( userIds[i] )  await  mysql.query("delete from admin_user_role where role_id=? and user_id=?",[roleId, userIds[i]]);
        }
        return n;
    }
    
    async queryRolePermission(data) {

        // /sys/permission/queryRolePermission?_t=1602508085&roleId=2
        let {roleId} = data;
    
        let mysql = this.app.mysql;
       
        let ret = await  mysql.query("select * from admin_role_permission  where role_id=?",[roleId ]);

        // let ctx = this.ctx;
        // let where = query.roleName? `where role_name like '%${query.roleName}%'`:'';
        // let ret = await ctx.pageSelect(query, 'admin_role_permission', `id,role_name,role_code,\`desc\`,${ctx.SqlFmtTime('add_time')}`, `${where}`)
        // return ret;
    }

    async edit(data) {
        let mysql = this.app.mysql;
        if( data.add_time ) delete data.add_time;
        if( !data.id ) throw "ID为空";

        let {realname, avatar, phone, selectedroles} = data;
        

        let conn = await mysql.beginTransaction();
        try {
            let updateData = {realname, avatar, phone};
            let ret = await conn.update("admin_user", updateData, {where:{id: data.id}});
            
            
            if( selectedroles ) {
                console.log("更新角色");
                let roles = selectedroles.split(",");
                let n = roles.length;
                for( let i=0; i<n; i++) {
                    if( roles[i] != "" && roles[i] != undefined) {
                        let role = await conn.query("select id from admin_user_role where user_id=? and role_id=?",[data.id, roles[i]]);
                        if( role.length < 1)  {
                            await conn.insert("admin_user_role", {user_id: data.id, role_id: roles[i]});
                        }
                    }
                }
            }
            await conn.commit();
            
        } catch (error) {
            await conn.rollback();
            throw error;
        }
        return true;
    }

    async editRole( data ) {
        let mysql = this.app.mysql;
        if( data.add_time ) delete data.add_time;
        if( !data.id ) throw "ID为空";

        let ret = await mysql.update("admin_role", data, {where:{id: data.id}});
        return ret;
    }

    async add( data ) {
        let mysql = this.app.mysql;
   
        let {avatar, password, phone, realname, name } = data;
        
        if(　!password ) throw "密码不能为空";

        let addData = {avatar, password:md5( password ), phone, realname, name, add_time:mysql.literals.now};

        let ret = await mysql.insert("admin_user", addData);

        if( data.selectedroles ) {
            //设置角色
            // console.log( ret );
            // selectedroles
            await mysql.insert("admin_user_role", {role_id: data.selectedroles, user_id: ret.insertId});
        }

        return ret;
    }

    async resetpwd( data ) {

        let mysql = this.app.mysql;

        if( !data.id ) throw "ID不能为空";
        if( !data.pwd ) throw "密码不能为空";
        if( data.pwd )  data.pwd = md5( data.pwd );

        let ret = await mysql.update("users", data, {where:{id: data.id}});
        return ret;
    }

    async frozenBatch( data ) {
        let mysql = this.app.mysql;
        if( !data.ids ) throw "ID不能为空";
        let ret = await mysql.update("admin_user", {status: data.status}, {where:{id: data.ids}});
        return ret;
    }

    async queryTreeList( query ) {

        let mysql = this.app.mysql;
        let ret = await mysql.query(`select * from admin_permission order by \`sort_no\` `);
        let ids = ret.map( e=>e.id );
        let nodes = {};
        ret.forEach(r=>{
            nodes[r.id] = r;
        });
        //三级树
        let treeList = [];
        let cacheNodes = {};

        function parseNode( node ) {
            if( node.parent_id == 0 ) { //根节点
                let cnode = cacheNodes[node.id];
                if( treeList.indexOf(cnode) < 0) { //还没有加入List
                    let curNode = {children:[], key: node.id, isLeaf:false, icon:'icon', title:node.name, value:node.id};
                    treeList.push( curNode );
                    cacheNodes[node.id] = curNode;
                    return curNode;
                }
                return cnode;
            } else {
                //处理父亲节点
                let parentNode = nodes[node.parent_id];
                let parent = cacheNodes[parentNode.id];
                if( !parent ) {
                    parent = parseNode(parentNode);
                }
                //处理自己
                let curNode = {children:[], key: node.id, isLeaf:false, icon:'icon', title:node.name, value:node.id};

                parent.children.push( curNode );
                
                cacheNodes[node.id] = curNode;

                return curNode;
            }   
        }

        ret.forEach( node=>{
             parseNode( node );
        });

        function checkNode(node) {
            
            node.isLeaf = node.children.length < 1;
            if( node.children.length < 1) {
                node.children = null;
                return;
            }
            node.children.forEach( c=>checkNode(c) );
        }
        treeList.forEach( c=>checkNode(c) );

        return {ids, treeList};
    }

    async saveRolePermission( data ) {

        console.log( data );
        let {lastpermissionIds, permissionIds, roleId} = data;

        if( roleId == undefined ) throw "RoleId为空";

        let mysql = this.app.mysql;
        const conn = await mysql.beginTransaction();
        try {
            let lastIds = lastpermissionIds.split(",");
            let n = lastIds.length;
            for( let i=0; i<n; i++) {
                await conn.query(`delete from admin_role_permission where role_id=? and permission_id=?`,[roleId, lastIds[i]]);
            } 
            let ids = permissionIds.split(",");
            n = ids.length;
            for( let i=0; i<n; i++) {
                await conn.query(`insert into admin_role_permission (role_id, permission_id, add_time) values (?,?, now())`,[roleId, ids[i]]);
            }
            await conn.commit();

        } catch (error) {
            await conn.rollback();
            throw error;
        }
    }

    async queryRolePermission(query){
        //sys/permission/queryRolePermission?_t=1602560082&roleId=2
        let mysql = this.app.mysql;
        let ret = await mysql.query(`select permission_id as id from admin_role_permission where role_id=${query.roleId}`);
        let ids = ret.map( e=>e.id );
        return ids;
    }

    async queryUserRole( query ) {
        //let userid = query.userid;
        let mysql = this.app.mysql;

        let ret = await mysql.query(`select role_id as id from admin_user_role where user_id=${query.userid}`);
        let ids = ret.map( e=>e.id );
        return ids;

    }
}

module.exports = AdminUserService;