<?php
// +----------------------------------------------------------------------
// | Niucloud-admin 企业快速开发的多应用管理平台
// +----------------------------------------------------------------------
// | 官方网址：https://www.niucloud.com
// +----------------------------------------------------------------------
// | niucloud团队 版权所有 开源版本可自由商用
// +----------------------------------------------------------------------
// | Author: Niucloud Team
// +----------------------------------------------------------------------

namespace app\service\api\apiService;

use app\model\diy_form\DiyForm;
use app\model\diy_form\DiyFormRecords;
use core\base\BaseApiService;

/**
 * 学习计划API服务层
 * Class StudyPlanService
 * @package app\service\api\apiService
 */
class StudyPlanService extends BaseApiService
{
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * 获取学习计划列表
     * @param int $studentId 学员ID
     * @return array
     */
    public function getList($studentId)
    {
        try {
            // 获取学习计划表单ID
            $studyPlanForm = DiyForm::where('type', 'study_plan')->find();
            if (!$studyPlanForm) {
                return ['code' => 0, 'data' => [], 'msg' => '学习计划表单不存在'];
            }

            // 查询学习计划记录
            $records = DiyFormRecords::where('form_id', $studyPlanForm->form_id)
                ->where('student_id', $studentId)
                ->order('create_time desc')
                ->select()
                ->toArray();

            $result = [];
            foreach ($records as $record) {
                $value = is_string($record['value']) ? (json_decode($record['value'], true) ?: []) : (is_array($record['value']) ? $record['value'] : []);
                
                $result[] = [
                    'id' => $record['record_id'],
                    'student_id' => $record['student_id'],
                    'plan_name' => $value['plan_name'] ?? '',
                    'plan_content' => $value['plan_content'] ?? '',
                    'plan_type' => $value['plan_type'] ?? '常规计划',
                    'status' => $value['status'] ?? 'active',
                    'progress' => (int)($value['progress'] ?? 0),
                    'start_date' => $value['start_date'] ?? '',
                    'end_date' => $value['end_date'] ?? '',
                    'target_goals' => $value['target_goals'] ?? '',
                    'learning_materials' => $value['learning_materials'] ?? '',
                    'evaluation_criteria' => $value['evaluation_criteria'] ?? '',
                    'remark' => $value['remark'] ?? '',
                    'create_time' => is_numeric($record['create_time']) ? date('Y-m-d H:i:s', $record['create_time']) : $record['create_time'],
                    'update_time' => is_numeric($record['create_time']) ? date('Y-m-d H:i:s', $record['create_time']) : $record['create_time']
                ];
            }

            return ['code' => 1, 'data' => $result, 'msg' => '获取成功'];
            
        } catch (\Exception $e) {
            return ['code' => 0, 'data' => [], 'msg' => '获取失败：' . $e->getMessage()];
        }
    }

    /**
     * 获取学习计划详情
     * @param int $recordId 记录ID
     * @return array
     */
    public function getInfo($recordId)
    {
        try {
            $record = DiyFormRecords::find($recordId);
            if (!$record) {
                return ['code' => 0, 'data' => [], 'msg' => '记录不存在'];
            }

            $value = is_string($record->value) ? (json_decode($record->value, true) ?: []) : (is_array($record->value) ? $record->value : []);
            
            $result = [
                'id' => $record->record_id,
                'student_id' => $record->student_id,
                'plan_name' => $value['plan_name'] ?? '',
                'plan_content' => $value['plan_content'] ?? '',
                'plan_type' => $value['plan_type'] ?? '常规计划',
                'status' => $value['status'] ?? 'active',
                'progress' => (int)($value['progress'] ?? 0),
                'start_date' => $value['start_date'] ?? '',
                'end_date' => $value['end_date'] ?? '',
                'target_goals' => $value['target_goals'] ?? '',
                'learning_materials' => $value['learning_materials'] ?? '',
                'evaluation_criteria' => $value['evaluation_criteria'] ?? '',
                'remark' => $value['remark'] ?? '',
                'create_time' => is_numeric($record->create_time) ? date('Y-m-d H:i:s', $record->create_time) : $record->create_time,
                'update_time' => is_numeric($record->create_time) ? date('Y-m-d H:i:s', $record->create_time) : $record->create_time
            ];

            return ['code' => 1, 'data' => $result, 'msg' => '获取成功'];
            
        } catch (\Exception $e) {
            return ['code' => 0, 'data' => [], 'msg' => '获取失败：' . $e->getMessage()];
        }
    }

    /**
     * 添加学习计划
     * @param array $data
     * @return array
     */
    public function add(array $data)
    {
        try {
            // 获取学习计划表单ID
            $studyPlanForm = DiyForm::where('type', 'study_plan')->find();
            if (!$studyPlanForm) {
                return ['code' => 0, 'data' => [], 'msg' => '学习计划表单不存在'];
            }

            // 构建表单数据
            $formValue = [
                'plan_name' => $data['plan_name'],
                'plan_content' => $data['plan_content'],
                'plan_type' => $data['plan_type'] ?? '常规计划',
                'status' => $data['status'] ?? 'active',
                'progress' => (int)($data['progress'] ?? 0),
                'start_date' => $data['start_date'] ?? '',
                'end_date' => $data['end_date'] ?? '',
                'target_goals' => $data['target_goals'] ?? '',
                'learning_materials' => $data['learning_materials'] ?? '',
                'evaluation_criteria' => $data['evaluation_criteria'] ?? '',
                'remark' => $data['remark'] ?? ''
            ];

            // 创建记录
            $record = DiyFormRecords::create([
                'form_id' => $studyPlanForm->form_id,
                'value' => json_encode($formValue),
                'member_id' => $this->member_id ?? 0,
                'relate_id' => 0,
                'student_id' => $data['student_id'],
                'create_time' => time()
            ]);

            if ($record) {
                $result = [
                    'id' => $record->record_id,
                    'student_id' => $record->student_id,
                    'plan_name' => $formValue['plan_name'],
                    'plan_content' => $formValue['plan_content'],
                    'plan_type' => $formValue['plan_type'],
                    'status' => $formValue['status'],
                    'progress' => $formValue['progress'],
                    'start_date' => $formValue['start_date'],
                    'end_date' => $formValue['end_date'],
                    'target_goals' => $formValue['target_goals'],
                    'learning_materials' => $formValue['learning_materials'],
                    'evaluation_criteria' => $formValue['evaluation_criteria'],
                    'remark' => $formValue['remark'],
                    'create_time' => is_numeric($record->create_time) ? date('Y-m-d H:i:s', $record->create_time) : $record->create_time
                ];
                
                return ['code' => 1, 'data' => $result, 'msg' => '添加成功'];
            } else {
                return ['code' => 0, 'data' => [], 'msg' => '添加失败'];
            }
            
        } catch (\Exception $e) {
            return ['code' => 0, 'data' => [], 'msg' => '添加失败：' . $e->getMessage()];
        }
    }

    /**
     * 编辑学习计划
     * @param array $data
     * @return array
     */
    public function edit(array $data)
    {
        try {
            $record = DiyFormRecords::find($data['record_id']);
            if (!$record) {
                return ['code' => 0, 'data' => [], 'msg' => '记录不存在'];
            }

            // 获取现有数据
            $existingValue = is_string($record->value) ? (json_decode($record->value, true) ?: []) : (is_array($record->value) ? $record->value : []);

            // 更新字段
            $formValue = $existingValue;
            
            $updateFields = [
                'plan_name', 'plan_content', 'plan_type', 'status', 'progress',
                'start_date', 'end_date', 'target_goals', 'learning_materials',
                'evaluation_criteria', 'remark'
            ];

            foreach ($updateFields as $field) {
                if (isset($data[$field])) {
                    $formValue[$field] = ($field === 'progress') ? (int)$data[$field] : $data[$field];
                }
            }

            // 更新记录
            $result = $record->save([
                'value' => json_encode($formValue)
            ]);

            if ($result !== false) {
                $resultData = [
                    'id' => $record->record_id,
                    'student_id' => $record->student_id,
                    'plan_name' => $formValue['plan_name'] ?? '',
                    'plan_content' => $formValue['plan_content'] ?? '',
                    'plan_type' => $formValue['plan_type'] ?? '常规计划',
                    'status' => $formValue['status'] ?? 'active',
                    'progress' => (int)($formValue['progress'] ?? 0),
                    'start_date' => $formValue['start_date'] ?? '',
                    'end_date' => $formValue['end_date'] ?? '',
                    'target_goals' => $formValue['target_goals'] ?? '',
                    'learning_materials' => $formValue['learning_materials'] ?? '',
                    'evaluation_criteria' => $formValue['evaluation_criteria'] ?? '',
                    'remark' => $formValue['remark'] ?? '',
                    'create_time' => is_numeric($record->create_time) ? date('Y-m-d H:i:s', $record->create_time) : $record->create_time
                ];
                
                return ['code' => 1, 'data' => $resultData, 'msg' => '修改成功'];
            } else {
                return ['code' => 0, 'data' => [], 'msg' => '修改失败'];
            }
            
        } catch (\Exception $e) {
            return ['code' => 0, 'data' => [], 'msg' => '修改失败：' . $e->getMessage()];
        }
    }

    /**
     * 删除学习计划
     * @param int $recordId
     * @return array
     */
    public function delete($recordId)
    {
        try {
            $record = DiyFormRecords::find($recordId);
            if (!$record) {
                return ['code' => 0, 'data' => [], 'msg' => '记录不存在'];
            }

            $result = $record->delete();

            if ($result) {
                return ['code' => 1, 'data' => [], 'msg' => '删除成功'];
            } else {
                return ['code' => 0, 'data' => [], 'msg' => '删除失败'];
            }
            
        } catch (\Exception $e) {
            return ['code' => 0, 'data' => [], 'msg' => '删除失败：' . $e->getMessage()];
        }
    }

    /**
     * 更新学习计划进度
     * @param int $recordId
     * @param int $progress
     * @return array
     */
    public function updateProgress($recordId, $progress)
    {
        try {
            $record = DiyFormRecords::find($recordId);
            if (!$record) {
                return ['code' => 0, 'data' => [], 'msg' => '记录不存在'];
            }

            // 获取现有数据
            $existingValue = is_string($record->value) ? (json_decode($record->value, true) ?: []) : (is_array($record->value) ? $record->value : []);
            $existingValue['progress'] = (int)$progress;

            // 根据进度自动更新状态
            if ($progress >= 100) {
                $existingValue['status'] = 'completed';
            } elseif ($progress > 0) {
                $existingValue['status'] = 'in_progress';
            } else {
                $existingValue['status'] = 'active';
            }

            // 更新记录
            $result = $record->save([
                'value' => json_encode($existingValue)
            ]);

            if ($result !== false) {
                $resultData = [
                    'id' => $record->record_id,
                    'progress' => (int)$progress,
                    'status' => $existingValue['status']
                ];
                
                return ['code' => 1, 'data' => $resultData, 'msg' => '更新成功'];
            } else {
                return ['code' => 0, 'data' => [], 'msg' => '更新失败'];
            }
            
        } catch (\Exception $e) {
            return ['code' => 0, 'data' => [], 'msg' => '更新失败：' . $e->getMessage()];
        }
    }
}