package com.example.demo.serviceImpl;


import com.example.demo.domain.entity.Admin;
import com.example.demo.mapper.AdminMapper;
import com.example.demo.security.SecurityConfig;
import com.example.demo.sevice.AdminService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;


import org.springframework.cache.annotation.CacheConfig;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.ObjectUtils;


import java.util.List;
@Transactional
@Service
@RequiredArgsConstructor
@CacheConfig(cacheNames = "admin")
public class AdminServiceImpl implements AdminService {
    @Autowired
    private SecurityConfig securityConfig;
    private final AdminMapper adminMapper;
    @Autowired
    private AuthenticationManager authenticationManager;
    @Autowired
    private PasswordEncoder passwordEncoder;

    @Override
    public int add(Admin admin) {
        //判断jwcode是否已存在
        Admin admin1=adminMapper.selectByJwcode(admin);
        if(!ObjectUtils.isEmpty(admin1)){
            throw new RuntimeException("用户已存在");
        }
        //设置密码
        if(ObjectUtils.isEmpty(admin.getPassword())){
            admin.setPassword(passwordEncoder.encode("$2a$10$jKrLD.8RTPzk4oe6c27b0ec9QP4DodbCVQLrLIEXS0xeT2vsp9cJK"));
        }else {
            admin.setPassword(passwordEncoder.encode(admin.getPassword()));
        }
         return adminMapper.insert(admin);
    }
    @CacheEvict(value = "admin",allEntries = true)
    @Override
    public int edit(Admin admin) {
        return adminMapper.update(admin);
    }
    @Cacheable(key="#root.method.name")
    @Override
    public Admin findById(Integer adminId) {
        return adminMapper.selectById(adminId);
    }
    @Cacheable(key="#root.method.name")
    @Override
    public Admin findByUsername(String username) {
        return adminMapper.selectByName(username);
    }
    @Cacheable(key="#root.method.name")
    @Override
    public List<Admin> search(Admin admin) {
        return adminMapper.select(admin);
    }
    @Cacheable(key="#root.method.name + ':'+ #pageNum + '-' + #pageSize + '-' + #admin.hashCode() ")
    @Override
    public PageInfo<Admin> searchForPage(Integer pageNum, Integer pageSize, Admin admin) {
        PageHelper.startPage(pageNum, pageSize);
        List<Admin> list = adminMapper.select(admin);
        return new PageInfo<>(list);

    }
    @Override
    public Admin login(Admin admin) throws Exception {

        Admin admin1=adminMapper.selectByJwcode(admin);
        String[] machineIds = admin1.getMachineId().split(",");
        boolean flag = false;
        for(String machineId:machineIds) {
            if (admin.getMachineId() != null && admin.getMachineId().equals(machineId))
                flag = true;
        }
        if (!flag) {
            throw new RuntimeException("你没有使用该机器的权限！");
        }
        System.out.println(admin.getJwcode());
        System.out.println(admin.getPassword());
        UsernamePasswordAuthenticationToken token =
                new UsernamePasswordAuthenticationToken(admin.getJwcode(),admin.getPassword());
        try {
            Authentication authentication = authenticationManager.authenticate(token);
            Admin loginAdmin = (Admin) authentication.getPrincipal();

            return loginAdmin;
        }catch (BadCredentialsException exception){
            throw new BadCredentialsException("用户或密码错误");

        }
    }

    @Override
    public List<String> store() {
        return adminMapper.selectStore();
    }

    @Override
    public List<String> area() {
        return adminMapper.selectArea();
    }

    @Override
    public List<Admin> selectNo(Admin admin) {
        Admin admin1 = adminMapper.selectByJwcode(admin);
        if (ObjectUtils.isEmpty(admin1)) {
            throw new RuntimeException("用户不存在");
        }
        try {
            int permission = Integer.parseInt(admin1.getPermission());
            if (permission == 1 || permission == 2 || permission == 3) {
                throw new RuntimeException("用户已有权限");
            }
        } catch (NumberFormatException e) {
            throw new RuntimeException("权限字段格式错误");
        }
        return adminMapper.selectNo(admin);
    }



}