<?php

namespace app\api\controller;

use app\BaseController;
use app\common\model\TeacherScheduleTime;
use app\common\service\TeacherScheduleTimeService;
use app\constant\ResponseCode;
use support\Request;
use think\Exception;

class TeacherScheduleTimeController extends BaseController
{

    /**
     * @desc 添加空闲时间
     * @param Request $request
     * @return \support\Response
     */
    public function addScheduleTime(Request $request)
    {
        $service = new TeacherScheduleTimeService();
        $res = $service->addScheduleTime($request);
        return $this->json($res);
    }

    /**
     * @desc 获取排期信息
     * @param Request $request
     * @return \support\Response
     */
    public function getScheduleTime(Request $request)
    {
        $service = new TeacherScheduleTimeService();
        $res = $service->getScheduleTime($request);
        return $this->json($res);
    }


    /**
     * @desc 学生课表
     * @param Request $request
     * @return void
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\DbException
     * @throws \think\db\exception\ModelNotFoundException
     */
    public function downloadSchedule(Request $request)
    {

        try {
            if (empty((array)$request->teacher)) {
                throw new Exception('请教师登陆后再试');
            }


            $request_data = $request->post();
            $month = date('Y-m', strtotime($request_data['date']));
            $student_schedule = TeacherScheduleTime::where(['teacher_id' => $request->teacher->id, 'is_publish' => 1])
                ->where(['month' => $month])
                ->with(['teacher', 'subject', 'oneStudentSchedule'])
                ->order('start_time asc')
                ->select()->toArray();


            $array = [];
            $stu_nmae = '';

            foreach ($student_schedule as $k => &$v) {

                if ($v['oneStudentSchedule']) {
                    if ($v['is_publish']) {
                        $student[] = $v['oneStudentSchedule']['student_name'];
                    }
                } else {
                    $student[] = '';
                }

                $array[] = [
                    'week' => $this->getWeek(strtotime($v['date'])),
                    'date' => $v['date'],
                    'time_on' => $v['time'],
                    'subject' => $v['english_name'],
                    'teacher_name' => $v['teacher_name'],
                    'student_name' => implode(',', array_unique(array_filter($student))),
                    'time_num' => $v['hour'] . '/h',
                ];
                $stu_nmae = $v['teacher_name'];
            }

            $params = [
                'row' => count($student_schedule) + 1,//数据的行数
                'file_name' => time() . '.png',
                'title' => $stu_nmae,
                'table_time' => $month,
                'data' => $array,
            ];


            $file_path = '/files/images/teacher_schedule/' . $month . "/{$request->teacher->id}/";
            $base = [
                'border' => 10,//图片外边框
                'file_path' => public_path($file_path),//图片保存路径
                'title_height' => 30,//报表名称高度
                'title_font_size' => 16,//报表名称字体大小
                'font_ulr' => public_path('/111.ttf'),//字体文件路径
                'text_size' => 12,//正文字体大小
                'row_hight' => 30,//每行数据行高
                'filed_id_width' => 60,//序号列的宽度
                'filed_name_width' => 120,//玩家名称的宽度
                'filed_data_width' => 220,//数据列的宽度
                'table_header' => ['', 'Week', 'Date', 'Time', 'Subject', 'Teacher', 'Student', 'Duration'],//表头文字
                'column_text_offset_arr' => [100, 70, 120, 140, 110, 120, 120, 120],//表头文字左偏移量
                'row_text_offset_arr' => [50, 100, 140, 160, 140, 140, 140, 140],//数据列文字左偏移量
            ];
            $base['img_width'] = $base['filed_id_width'] + $base['filed_name_width'] + $base['filed_data_width'] * 5 + $base['border'] * 2;//图片宽度
            $base['img_height'] = $params['row'] * $base['row_hight'] + $base['border'] * 2 + $base['title_height'];//图片高度
            $border_top = $base['border'] + $base['title_height'];//表格顶部高度
            $border_bottom = $base['img_height'] - $base['border'];//表格底部高度
            $base['column_x_arr'] = [
                $base['border'] + $base['filed_id_width'],//第一列边框线x轴像素  70/2+10
                $base['border'] + $base['filed_id_width'] + $base['filed_name_width'],//第二列边框线x轴像素  190
                $base['border'] + $base['filed_id_width'] + $base['filed_name_width'] + $base['filed_data_width'] * 1,//第三列边框线x轴像素
                $base['border'] + $base['filed_id_width'] + $base['filed_name_width'] + $base['filed_data_width'] * 2,//第四列边框线x轴像素
                $base['border'] + $base['filed_id_width'] + $base['filed_name_width'] + $base['filed_data_width'] * 3,//第五列边框线x轴像素
                $base['border'] + $base['filed_id_width'] + $base['filed_name_width'] + $base['filed_data_width'] * 4,//第五列边框线x轴像素
                $base['border'] + $base['filed_id_width'] + $base['filed_name_width'] + $base['filed_data_width'] * 5,//第五列边框线x轴像素
                $base['border'] + $base['filed_id_width'] + $base['filed_name_width'] + $base['filed_data_width'] * 6,//第五列边框线x轴像素
            ];
            $img = imagecreatetruecolor($base['img_width'], $base['img_height']);//创建指定尺寸图片
            $bg_color = imagecolorallocate($img, 255, 255, 255);//设定图片背景色
            $text_coler = imagecolorallocate($img, 0, 0, 0);//设定文字颜色
            $border_coler = imagecolorallocate($img, 0, 0, 0);//设定边框颜色
//        $white_coler = imagecolorallocate($img, 255, 255, 255);//设定边框颜色
            imagefill($img, 0, 0, $bg_color);//填充图片背景色
            //先填充一个黑色的大块背景
            imagefilledrectangle($img, $base['border'], $base['border'] + $base['title_height'], $base['img_width'] - $base['border'], $base['img_height'] - $base['border'], $border_coler);//画矩形
            //再填充一个小两个像素的 背景色区域，形成一个两个像素的外边框
            imagefilledrectangle($img, $base['border'] + 2, $base['border'] + $base['title_height'] + 2, $base['img_width'] - $base['border'] - 2, $base['img_height'] - $base['border'] - 2, $bg_color);//画矩形
            //画表格纵线 及 写入表头文字
            foreach ($base['column_x_arr'] as $key => $x) {
                imageline($img, $x, $border_top, $x, $border_bottom, $border_coler);//画纵线
                $x = $x - $base['column_text_offset_arr'][$key] + 1;
                // echo  $x;echo  "<br>";
                $y = $border_top + $base['row_hight'] - 8;
                $text = $base['table_header'][$key];
                imagettftext($img, $base['text_size'], 0, $x, $y, $text_coler, $base['font_ulr'], $text);//写入表头文字
            }
            //画表格横线
            foreach ($params['data'] as $key => $item) {
                $border_top += $base['row_hight'];
                imageline($img, $base['border'], $border_top, $base['img_width'] - $base['border'], $border_top, $border_coler);
                $x = $base['column_x_arr'][0] - $base['row_text_offset_arr'][0];
                $y = $border_top + $base['row_hight'] - 10;
                $text = $key + 1;
                imagettftext($img, $base['text_size'], 0, $x, $y, $text_coler, $base['font_ulr'], $text);//写入序号
                $sub = 0;
                foreach ($item as $value) {
                    $sub++;
                    imagettftext($img, $base['text_size'], 0, $base['column_x_arr'][$sub] - $base['row_text_offset_arr'][$sub], $border_top + $base['row_hight'] - 10, $text_coler, $base['font_ulr'], $value ?? '');//写入data数据
                }
            }
            //计算标题写入起始位置
            $title_fout_box = imagettfbbox($base['title_font_size'], 0, $base['font_ulr'], $params['title']);//imagettfbbox() 返回一个含有 8 个单元的数组表示了文本外框的四个角：

            $title_fout_width = $title_fout_box[2] - $title_fout_box[0];//右下角 X 位置 - 左下角 X 位置 为文字宽度
            $title_fout_height = $title_fout_box[1] - $title_fout_box[7];//左下角 Y 位置- 左上角 Y 位置 为文字高度
            //居中写入标题
            imagettftext($img, $base['title_font_size'], 0, round(($base['img_width'] - $title_fout_width) / 2), $base['title_height'], $text_coler, $base['font_ulr'], $params['title']);
            //写入制表时间
            imagettftext($img, $base['text_size'], 0, $base['border'], $base['title_height'], $text_coler, $base['font_ulr'], 'Date：' . $params['table_time']);
            $save_path = $base['file_path'] . $params['file_name'];
            if (!is_dir($base['file_path']))//判断存储路径是否存在，不存在则创建
            {
                mkdir($base['file_path'], 0777, true);//可创建多级目录
            }
            imagepng($img, $save_path);//输出图片，输出png使用imagepng方法，输出gif使用imagegif方法

            $url = getenv('SERVER_DOMAIN') . $file_path . $params['file_name'];

            return $this->json([
                'code' => ResponseCode::SUCCESS,
                'data' => $url,
            ]);

        } catch (Exception $e) {
            return $this->json([
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ]);
        }

    }


    public function getWeek($date)
    {
//        $week_array = array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");
        $week_array = array("Sun", "Mon", "Tues", "Wed", "Thurs", "Fri", "Sat");
        $week = date("w", $date);
        return $week_array[$week];
    }

}