package com.gcc_manpower.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import javax.sql.DataSource;
import java.util.List;
import java.util.Map;

@Service
public class AppUserDetailsService implements UserDetailsService {

    private JdbcTemplate jdbcTemplate;

    @Autowired
    public void setDataSource(@Qualifier("mysqlItcellManagementDataSource") DataSource dataSource) {
        this.jdbcTemplate = new JdbcTemplate(dataSource);
    }

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        String sql = "SELECT usr_name, usr_pass, usr_role, is_active FROM app_user WHERE usr_name = ?";
        List<Map<String, Object>> users;
        try {
            users = jdbcTemplate.queryForList(sql, username);
        } catch (Exception e) {
            throw new UsernameNotFoundException("Database error during user retrieval", e);
        }

        if (users == null || users.isEmpty()) {
            throw new UsernameNotFoundException("Invalid username or password!");
        }

        Map<String, Object> user = users.get(0);

        // Check if user is active
        int isActive = 1;
        Object activeObj = user.get("is_active");
        if (activeObj instanceof Number) {
            isActive = ((Number) activeObj).intValue();
        } else if (activeObj instanceof Boolean) {
            isActive = (Boolean) activeObj ? 1 : 0;
        }

        if (isActive == 0) {
            throw new UsernameNotFoundException("User account is inactive!");
        }

        String password = (String) user.get("usr_pass");
        String role = (String) user.get("usr_role");
        if (role == null) {
            role = "USER";
        }

        return User.withUsername(username)
                .password(password != null ? password : "")
                .roles(role.toUpperCase()) // Will be loaded as authority ROLE_ROLE
                .build();
    }
}