<?php
require_once __DIR__ . '/../st-xm/Common/Mysql.php';
header("Access-Control-Allow-Origin:*");
//车次run_x表重排

date_default_timezone_set('Asia/Shanghai');
$pdo = conn();//pdo连接数据库

$run_id = isset($_POST['run_id']) ? $_POST['run_id'] : 0;
$bus_order_id = isset($_POST['bus_order_id']) ? $_POST['bus_order_id'] : 0;
#0,根据父订单order_id判断是单一线路还是组合线路，如果是单一线路，则重排run_x;如果是组合线路直接返回，不做重排
$order_id = isset($_POST['order_id']) ? $_POST['order_id'] : 0;
$order_id = $order_id + 0;
$run_id = $run_id + 0;
$bus_order_id = $bus_order_id + 0;

if (isset($_POST['order_id'])) { //如果没传order_id,则直接使用前面的run_id,bus_order_id;否则根据order_id得到run_id,bus_order_id
    if (!$order_id) {
        $data = array();
        $data['code'] = '1';
        $data['info'] = '参数不正确';
        echo json_encode($data);
        exit;
    }
    //判断所属线路类型，为255,256的才做重排
    $sql_c1 = "
    SELECT
        b.line_type
    FROM
        order_main a
    LEFT JOIN opera_line b ON a.PARENT_PROD_ID = b.line_id
    WHERE
        a.order_id = $order_id  
    AND a.PARENT_ORDER_ID = 0
    LIMIT 1;";
    $res0 = $pdo->query($sql_c1);
    $res0->setFetchMode(PDO::FETCH_ASSOC);
    $line_type = $res0->fetchColumn();

    if ($line_type == 256 || $line_type == 255 || $line_type = 368) {
        $sql_c2 = "SELECT
                run_id,
                run_bus_order_id as bus_order_id
            FROM
                order_main
            WHERE
                parent_order_id = $order_id
            AND cancel_flag = 0
            limit 1;";

        $res = $pdo->query($sql_c2);
        $res->setFetchMode(PDO::FETCH_ASSOC);
        $run_info = $res->fetch();
        $run_id = $run_info['run_id'];
        $bus_order_id = $run_info['bus_order_id'];
    }

} else {
    if (!$run_id || !$bus_order_id) {
        $data = array();
        $data['code'] = '1';
        $data['info'] = '参数不全';
        echo json_encode($data);
        exit;
    }
}

$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);//mysql错误时抛出异常
$pdo->beginTransaction(); //开始事务


try {
    #1,获取所在run_x表名称
    $sql1 = "select concat(substring(run_date,1,4),substring(run_date,6,2))  as x_name from run_main where run_main.run_id = $run_id";

    $res1 = $pdo->query($sql1);
    $res1->setFetchMode(PDO::FETCH_ASSOC);
    $x_name = $res1->fetchColumn();

    if (!$x_name) {
        throw new PDOException('获取相应run_x表失败');
    }
    #2获取车次的run_x数据
    $sql2 = "SELECT
        id,
        run_id,
        bus_order_id,
        order_id,
        seat_seq_id,
        seat_name,
        seat_status,
        order_main_id,
        ifnull((select parent_order_id from order_main where order_id=order_main_id and order_prod_type=82 limit 1),0) as parent_order_id,
        order_main_prod_id,
        order_prod_id,
        order_lock_user_id
    FROM
        run_$x_name
    WHERE
        run_id = $run_id
    AND bus_order_id = $bus_order_id;";
    $res2 = $pdo->query($sql2);
    $res2->setFetchMode(PDO::FETCH_ASSOC);
    $x_arr = $res2->fetchAll();
    $res2->closeCursor();
    #3获取相关子订单 --注意排序会对最后run_x重排是否紧密有影响
    $sql3 = "SELECT
        id,
        run_id,
        run_bus_order_id as bus_order_id,
        order_id as order_main_id,
        parent_order_id,
        parent_prod_id as order_main_prod_id,
        prod_id as order_prod_id,
        prod_start_station_seq_id as start_seq_id,
        prod_start_station_res_id as start_res_id,
        prod_end_station_seq_id as end_seq_id,
        prod_end_station_res_id as end_res_id
    FROM
        order_main
    WHERE
        run_id = $run_id
      AND run_bus_order_id= $bus_order_id
      AND order_valid_status = 1
      AND order_prod_type=82 
      ORDER BY start_seq_id,end_seq_id,parent_order_id;";

    $res3 = $pdo->query($sql3);
    $order_ori = $res3->fetchAll(PDO::FETCH_ASSOC);


    #4特别处理订单数组，得到需要更新到run_x表的数据
    $order_x = array();
    foreach ($order_ori as $k1 => $v1) {
        $order_ori[$k1]['s_id'] = $k1 + 1;
    }

    $len = count($order_x);
    foreach ($order_ori as $k => $v) {
        $num = $v['end_seq_id'] - $v['start_seq_id'];
        if ($num >= 1) {
            for ($i = 1; $i <= $num; $i++) {
                $order_x[] = $v;
                $v['start_seq_id'] = $v['start_seq_id'] + 1;
            }
        }
    }

    if (empty($order_ori) || empty($order_x)) {
        throw new PDOException('获取相应订单数据失败');
    }
    #5取消原run_x(对应run_id,bus_order_id)的数据
    $sql_reset = "
        UPDATE  run_$x_name
        SET seat_status = 0,
         order_lock_user_id = 0,
         order_main_id = 0,
         order_main_prod_id = 0,
         order_prod_id = 0
        WHERE
            run_id = $run_id
        AND bus_order_id= $bus_order_id;";

    $res4 = $pdo->exec($sql_reset);
    if ($pdo->errorCode() != '00000') {
        $errorArr = $pdo->errorInfo();
        throw new PDOException($errorArr[2]);
    }

    #6重排相应run_x数据
    //6.1创建临时表，供update使用
    $sql_create = "drop temporary table if exists temp_runx;
		create temporary table temp_runx(
		id int,
		run_id int,
		bus_order_id int,
		order_main_id int,
		parent_order_id int,
		order_main_prod_id int,
		order_prod_id int,
		start_seq_id int,
		start_res_id int,
		end_seq_id int,
		end_res_id int
		);";
    $res5 = $pdo->exec($sql_create);
    if ($pdo->errorCode() != '00000') {
        $errorArr = $pdo->errorInfo();
        throw new PDOException($errorArr[2]);
    }
    //6.2需要插入临时表的数据
    $values = '';
    foreach ($order_x as $k => $v) {
        $values .= '(' . $v['s_id'] . ',' . $v['run_id'] . ',' . $v['bus_order_id'] . ',' . $v['order_main_id'] . ',' . $v['parent_order_id'] . ',' . $v['order_main_prod_id'] . ',' . $v['order_prod_id'] . ',' . $v['start_seq_id'] . ',' . $v['start_res_id'] . ',' . $v['end_seq_id'] . ',' . $v['end_res_id'] . '),';
    };
    $values = trim($values, ',');
    $sql_insert = "INSERT INTO temp_runx (
        id,
        run_id,
        bus_order_id,
        order_main_id,
        parent_order_id,
        order_main_prod_id,
        order_prod_id,
        start_seq_id,
        start_res_id,
        end_seq_id,
        end_res_id
    )
    VALUES
       $values;";
    //$info=$pdo->errorInfo();
    $res6 = $pdo->exec($sql_insert);
    if ($pdo->errorCode() != '00000') {
        $errorArr = $pdo->errorInfo();
        throw new PDOException($errorArr[2]);
    }
    //6.3连接temp_runx更新run_x相关数据
    $sql_reorder = "
    UPDATE  run_$x_name a
    INNER JOIN temp_runx b ON a.run_id = b.run_id
    AND a.bus_order_id = b.bus_order_id
    AND a.order_id = b.start_seq_id
    AND b.id = a.seat_seq_id 
    SET a.create_time = now(),
     a.order_lock_user_id = 2,
     a.seat_status = 2,
     a.order_main_id = b.order_main_id,
     a.order_main_prod_id = b.order_main_prod_id,
     a.order_prod_id = b.order_prod_id ;";

    $res7 = $pdo->exec($sql_reorder);

    if ($pdo->errorCode() != '00000') {
        $errorArr = $pdo->errorInfo();
        throw new PDOException($errorArr[2]);
    }
    #7,更新order_main中相关订单的座位号
    $sql_main = "UPDATE order_main a
        INNER JOIN run_$x_name b ON a.run_id = b.run_id
        AND a.order_id = b.order_main_id
        AND b.order_main_id > 0
        SET a.run_bus_seat_seq_id = b.seat_seq_id,
         a.run_bus_seat_name = b.seat_name
        WHERE
            a.run_id = $run_id
        AND a.run_bus_order_id = $bus_order_id
        AND order_valid_status = 1";

    $res8 = $pdo->exec($sql_main);

    if ($pdo->errorCode() != '00000') {
        $errorArr = $pdo->errorInfo();
        throw new PDOException($errorArr[2]);
    }
    $pdo->rollBack();
    //$pdo->commit();
    $data = array();
    $data['code'] = '0';
    $data['info'] = 'run_x重排成功';
    echo json_encode($data);
    exit;
} catch (PDOException $e) {
    $pdo->rollBack();
    $data = array();
    $data['code'] = '2';
    $data['info'] = 'run_x重排失败';
    $data['error_info'] = $e->getMessage();
    echo json_encode($data);
    exit;
}