package com.emergencyrepair.auth;

import com.emergencyrepair.common.Result;
import lombok.RequiredArgsConstructor;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

@RestController
@RequestMapping("/api/auth")
@RequiredArgsConstructor
public class AuthController {
    private final JdbcTemplate jdbcTemplate;

    @PostMapping("/login")
    public Result<Map<String, Object>> login(@RequestBody Map<String, String> body) {
        String username = body.get("username");
        String password = body.get("password");
        if (!"admin".equals(username) || (!"admin".equals(password) && !"admin123".equals(password))) {
            return Result.error("用户名或密码错误，第一版请使用 admin/admin123");
        }
        Map<String, Object> data = new LinkedHashMap<>();
        data.put("token", "demo-admin-token");
        data.put("username", "admin");
        data.put("realName", "系统管理员");
        data.put("deptName", resolveDepartmentName(username));
        return Result.ok(data);
    }

    @GetMapping("/me")
    public Result<Map<String, Object>> me() {
        Map<String, Object> data = new LinkedHashMap<>();
        data.put("username", "admin");
        data.put("realName", "系统管理员");
        data.put("deptName", resolveDepartmentName("admin"));
        data.put("roles", new String[]{"SYSTEM_ADMIN"});
        return Result.ok(data);
    }

    private String resolveDepartmentName(String username) {
        if (!StringUtils.hasText(username)) {
            return "";
        }
        try {
            List<String> names = jdbcTemplate.query(
                    "SELECT d.DEPT_NAME FROM LX.SYS_USER u LEFT JOIN LX.SYS_DEPT d ON d.DEPT_ID = u.DEPT_ID WHERE u.USER_NAME = ? AND u.DEL_FLAG = '0'",
                    new Object[]{username},
                    (rs, rowNum) -> rs.getString(1));
            return names.isEmpty() || names.get(0) == null ? "" : names.get(0).trim();
        } catch (DataAccessException ex) {
            return "";
        }
    }
}