package com.chuanghai.video.controller;

import com.chuanghai.video.core.ResponseResult;
import com.chuanghai.video.entity.Admin;
import com.chuanghai.video.mapper.AdminMapper;
import com.chuanghai.video.util.JwtUtil;
import com.chuanghai.video.util.PasswordEncryptionUtil;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.sql.Timestamp;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/videoAdmin")
public class AdminController {

    @Autowired
    private JwtUtil jwtUtil;

    @Autowired
    private AdminMapper adminMapper;

    /**
     * 登录
     *
     * @param admin 用户对象
     * @return 返回响应
     */
    @PostMapping("/login")
    public ResponseResult login(@RequestBody Admin admin) {
        try {
            String username = admin.getUsername();
            String password = admin.getPassword();
            if (username == null || password == null)
                return ResponseResult.failed("【用户名】或【密码】为空！");

            Admin u = new Admin();
            u.setUsername(username);
            List<Admin> login = adminMapper.login(u);
            // 检验用户是否在数据库中
            if (login.size() > 0) {
                String s = encryption(password);

                if (s.equals(login.get(0).getPassword())) {
                    // 生成token
                    String token = jwtUtil.generateToken(username);
                    Map<String, String> strMap = new HashMap<>();
                    strMap.put("token", token);

                    return ResponseResult.success(strMap);
                } else {
                    return ResponseResult.failed("【用户名】或【密码】错误！");
                }
            } else {
                return ResponseResult.failed("【用户名】或【密码】错误！");
            }
        } catch (Exception e) {
            return ResponseResult.failed("登录失败：" + e.getMessage());
        }
    }

    /**
     * 管理员用户分页列表，查询分页等
     *
     * @param pageNum   当前页
     * @param pageSize  每页记录数
     * @param name      姓名
     * @param phone     手机
     * @param adminType 用户类型
     * @param startTime 开始时间
     * @param endTime   结束时间
     * @return 响应结果
     */
    @GetMapping("/list")
    public ResponseResult list(@RequestParam(value = "pageNum", defaultValue = "1") int pageNum,
                               @RequestParam(value = "pageSize", defaultValue = "10") int pageSize,
                               @RequestParam(value = "name", required = false) String name,
                               @RequestParam(value = "phone", required = false) String phone,
                               @RequestParam(value = "adminType", required = false) String adminType,
                               @RequestParam(value = "startTime", required = false) Timestamp startTime,
                               @RequestParam(value = "endTime", required = false) Timestamp endTime) {

        if (pageSize < 1)
            return ResponseResult.failed("每页显示记录数必须大于0！");

        Admin admin = new Admin();
        admin.setPageNum(pageNum);
        admin.setPageSize(pageSize);
        if (!"null".equals(name))
            admin.setName(name);
        if (!"null".equals(phone))
            admin.setPhone(phone);
        if (adminType != null)
            admin.setAdminType(adminType);
        if (startTime != null)
            admin.setStartTime(startTime);
        if (endTime != null)
            admin.setEndTime(endTime);

        try {
            PageHelper.startPage(admin.getPageNum(), admin.getPageSize());
            List<Admin> admins = adminMapper.list(admin);
            PageInfo<Admin> adminPageInfo = new PageInfo<>(admins);

            return ResponseResult.success(adminPageInfo);
        } catch (Exception e) {
            return ResponseResult.failed("列表失败：" + e.getMessage());
        }
    }

    /**
     * 增加用户
     *
     * @param admin 用户对象
     * @return 响应对象
     */
    @PostMapping("/add")
    public ResponseResult add(@RequestBody Admin admin) {
        try {
            Boolean aBoolean = checkColumn(admin);
            if (aBoolean)
                return ResponseResult.failed("【用户名】、【密码】、【手机】和【用户类型】为空！");

            List<Admin> admins = adminMapper.queryByUsernameOrPhone(admin);
            if (admins.size() > 0)
                return ResponseResult.failed("【用户名】或【手机】已被注册！");

            admin.setPassword(encryption(admin.getPassword()));

            int i = adminMapper.add(admin);
            if (i == 1)
                return ResponseResult.success("添加用户成功！");
            else
                return ResponseResult.failed("添加用户失败！");
        } catch (Exception e) {
            return ResponseResult.failed("添加用户失败：" + e.getMessage());
        }
    }

    private Boolean checkColumn(Admin admin) {
        String username = admin.getUsername();
        String password = admin.getPassword();
        String phone = admin.getPhone();
        String adminType = admin.getAdminType();
        return username == null || password == null || phone == null || adminType == null;
    }

    /**
     * 修改用户
     *
     * @param admin 用户对象
     * @return 响应对象
     */
    @PostMapping("/update")
    public ResponseResult update(@RequestBody Admin admin) {
        try {
            Boolean aBoolean = checkColumn(admin);
            if (aBoolean)
                return ResponseResult.failed("【用户名】、【密码】、【手机】和【用户类型】为空！");

            List<Admin> admins = adminMapper.queryByUsernameOrPhoneOrOthers(admin);
            if (admins.size() > 0)
                return ResponseResult.failed("用户未修改任何内容！");

            admin.setPassword(encryption(admin.getPassword()));

            int i = adminMapper.update(admin);
            if (i == 1)
                return ResponseResult.success("修改用户成功！");
            else
                return ResponseResult.failed("修改用户失败！");
        } catch (Exception e) {
            return ResponseResult.failed("修改用户失败：" + e.getMessage());
        }
    }

    /**
     * 删除用户
     *
     * @param id 记录id
     * @return 响应对象
     */
    @GetMapping("/delete")
    public ResponseResult delete(@RequestParam(value = "id") String id) {
        try {
            if (id == null) {
                return ResponseResult.failed("【id】为空！");
            } else {
                int i = adminMapper.delete(id);
                if (i == 1)
                    return ResponseResult.success("删除用户成功！");
                else
                    return ResponseResult.failed("可能没有对应的id，删除用户失败！");
            }
        } catch (Exception e) {
            return ResponseResult.failed("删除用户失败：" + e.getMessage());
        }
    }

    /**
     * 修改密码
     *
     * @param admin
     * @return
     */
    @PostMapping("/updatePassword")
    public ResponseResult updatePassword(@RequestBody Admin admin) {
        try {
            String id = admin.getId();
            String password = admin.getPassword();
            if (id == null || password == null)
                return ResponseResult.failed("【id】或【密码】为空！");

            // 加密处理
            admin.setPassword(encryption(admin.getPassword()));

            int i = adminMapper.update(admin);
            if (i == 1)
                return ResponseResult.success("修改密码成功！");
            else
                return ResponseResult.failed("修改密码失败！");
        } catch (Exception e) {
            return ResponseResult.failed("修改密码失败：" + e.getMessage());
        }
    }

    /**
     * 加密
     *
     * @param password
     * @return
     */
    private String encryption(String password) {
        return PasswordEncryptionUtil.md5Hash(PasswordEncryptionUtil.sha2Hash(password));
    }
}