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 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) {
         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 {
        System.out.println("第一步");
        UsernamePasswordAuthenticationToken token =
                new UsernamePasswordAuthenticationToken(admin.getJwcode(),admin.getPassword());
        System.out.println(token+"第二步");
        try {
            Authentication authentication = authenticationManager.authenticate(token);
            System.out.println(authentication+"第一步");
            Admin loginAdmin = (Admin) authentication.getPrincipal();
            System.out.println(token);
            System.out.println(loginAdmin+"logAdmin");
            return loginAdmin;
        }catch (BadCredentialsException exception){
            throw new BadCredentialsException("用户或密码错误");

        }
    }
}