package com.mydreamjob.job;

import com.mydreamjob.config.MySql57MigrationConfiguration;
import org.flywaydb.core.Flyway;
import org.junit.jupiter.api.Test;
import org.testcontainers.containers.MySQLContainer;
import java.sql.*;
import java.util.*;
import static org.junit.jupiter.api.Assertions.*;

/** 独立 V59→V60：真实 MySQL 两版本，旧地址保留、六列、精度、历史 checksum 和幂等。 */
class JobMapLocationMySqlMigrationTest {
    @Test void mysql57V59ToV60() throws Exception { verify("mysql:5.7.36"); }
    @Test void mysql8V59ToV60() throws Exception { verify("mysql:8.4"); }

    private Flyway flyway(MySQLContainer<?> db,String version) {
        var config=Flyway.configure().dataSource(db.getJdbcUrl(),db.getUsername(),db.getPassword())
                .locations("classpath:db/migration").target(version);
        MySql57MigrationConfiguration.configure(config);
        return config.load();
    }
    private void verify(String image) throws Exception {
        try(var db=new MySQLContainer<>(image).withDatabaseName("job_map_migration")
                .withUsername("maptest").withPassword("synthetic-test-only")
                .withUrlParam("characterEncoding","UTF-8")
                .withCreateContainerCmdModifier(c->c.getHostConfig().withMemory(768L*1024*1024))) {
            db.start();
            try(var c=DriverManager.getConnection(db.getJdbcUrl(),db.getUsername(),db.getPassword());var s=c.createStatement()) {
                s.execute("ALTER DATABASE job_map_migration CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci");
                flyway(db,"59").migrate();
                List<String> history=history(s);
                s.execute("INSERT INTO users(id,phone,role,is_active,is_verified) VALUES(930001,'19900889999','COMPANY',1,1)");
                s.execute("INSERT INTO companies(id,owner_user_id,name,verified) VALUES(930001,930001,'位置迁移测试企业',1)");
                s.execute("INSERT INTO jobs(id,company_id,title,description,city,employment_type,status,work_location) "
                        +"VALUES(930001,930001,'迁移测试岗位','合成数据','北京','FULL_TIME','DRAFT','旧工作地址')");
                assertEquals(1,flyway(db,"60").migrate().migrationsExecuted);
                assertEquals(history,history(s));
                try(var r=s.executeQuery("SELECT work_location,map_location_status,map_longitude,map_latitude,map_poi_name FROM jobs WHERE id=930001")) {
                    assertTrue(r.next());assertEquals("旧工作地址",r.getString(1));assertEquals("UNSET",r.getString(2));
                    assertNull(r.getBigDecimal(3));assertNull(r.getBigDecimal(4));assertNull(r.getString(5));
                }
                try(var r=s.executeQuery("SELECT count(*) FROM information_schema.columns WHERE table_schema=DATABASE() AND table_name='jobs' "
                        +"AND column_name IN ('map_longitude','map_latitude','map_coordinate_system','map_location_status','map_poi_id','map_poi_name')")) {
                    assertTrue(r.next());assertEquals(6,r.getInt(1));
                }
                s.executeUpdate("UPDATE jobs SET map_longitude=116.397463,map_latitude=39.909187,map_coordinate_system='GCJ02',"
                        +"map_location_status='CONFIRMED',map_poi_id='test-poi',map_poi_name='公开地标' WHERE id=930001");
                try(var r=s.executeQuery("SELECT map_longitude,map_latitude FROM jobs WHERE id=930001")) {
                    assertTrue(r.next());assertEquals("116.397463",r.getBigDecimal(1).toPlainString());
                    assertEquals("39.909187",r.getBigDecimal(2).toPlainString());
                }
                assertEquals(0,flyway(db,"60").migrate().migrationsExecuted);flyway(db,"60").validate();
                assertEquals(history,history(s));
            }
        }
    }
    private List<String> history(Statement s) throws SQLException {
        var rows=new ArrayList<String>();
        try(var r=s.executeQuery("SELECT version,checksum,success FROM flyway_schema_history WHERE version<>'60' ORDER BY installed_rank")) {
            while(r.next())rows.add(r.getString(1)+"|"+r.getString(2)+"|"+r.getBoolean(3));
        }
        return rows;
    }
}