-- =============================================
-- EduNexus Pro - 初始化数据脚本
-- 用于开发和测试
-- =============================================

SET NAMES utf8mb4;

-- =============================================
-- 1. 插入示例学科
-- =============================================

INSERT INTO `subjects` (`id`, `name`, `code`, `icon`, `created_by`, `updated_by`) VALUES
('sub-math', '数学', 'MATH', '📐', 'system', 'system'),
('sub-chinese', '语文', 'CHINESE', '📖', 'system', 'system'),
('sub-english', '英语', 'ENGLISH', '🌍', 'system', 'system'),
('sub-physics', '物理', 'PHYSICS', '⚛️', 'system', 'system'),
('sub-chemistry', '化学', 'CHEMISTRY', '🧪', 'system', 'system');

-- =============================================
-- 2. 插入示例学校和组织结构
-- =============================================

INSERT INTO `schools` (`id`, `name`, `region_code`, `address`, `created_by`, `updated_by`) VALUES
('school-1', '示范中学', '110000', '北京市海淀区示范路1号', 'system', 'system');

INSERT INTO `grades` (`id`, `school_id`, `name`, `sort_order`, `enrollment_year`, `created_by`, `updated_by`) VALUES
('grade-1', 'school-1', '初一年级', 1, 2024, 'system', 'system'),
('grade-2', 'school-1', '初二年级', 2, 2023, 'system', 'system'),
('grade-3', 'school-1', '初三年级', 3, 2022, 'system', 'system');

--=============================================
-- 3. 插入示例用户（密码: password123，实际应用需要hash）
-- =============================================

INSERT INTO `application_users` (`id`, `real_name`, `student_id`, `gender`, `current_school_id`, `account_status`, `email`, `phone`, `password_hash`, `created_by`, `updated_by`) VALUES
('user-teacher-1', '张老师', NULL, 'Male', 'school-1', 'Active', 'teacher@example.com', '13800138000', '$2b$10$example_hash', 'system', 'system'),
('user-student-1', '王小明', 'S20240001', 'Male', 'school-1', 'Active', 'student1@example.com', '13800138001', '$2b$10$example_hash', 'system', 'system'),
('user-student-2', '李小红', 'S20240002', 'Female', 'school-1', 'Active', 'student2@example.com', '13800138002', '$2b$10$example_hash', 'system', 'system');

-- =============================================
-- 4. 插入示例班级
-- =============================================

INSERT INTO `classes` (`id`, `grade_id`, `name`, `invite_code`, `head_teacher_id`, `created_by`, `updated_by`) VALUES
('class-1', 'grade-1', '初一(1)班', 'ABC123', 'user-teacher-1', 'system', 'system');

INSERT INTO `class_members` (`id`, `class_id`, `user_id`, `role_in_class`, `created_by`, `updated_by`) VALUES
('cm-1', 'class-1', 'user-teacher-1', 'Teacher', 'system', 'system'),
('cm-2', 'class-1', 'user-student-1', 'Student', 'system', 'system'),
('cm-3', 'class-1', 'user-student-2', 'Student', 'system', 'system');

-- =============================================
-- 5. 插入示例教材
-- =============================================

INSERT INTO `textbooks` (`id`, `subject_id`, `name`, `publisher`, `version_year`, `cover_url`, `created_by`, `updated_by`) VALUES
('textbook-1', 'sub-math', '义务教育教科书·数学（七年级上册）', '人民教育出版社', '2024', 'https://placehold.co/300x400/007AFF/ffffff?text=Math', 'system', 'system');

INSERT INTO `textbook_units` (`id`, `textbook_id`, `name`, `sort_order`, `created_by`, `updated_by`) VALUES
('unit-1', 'textbook-1', '第一章 有理数', 1, 'system', 'system'),
('unit-2', 'textbook-1', '第二章 整式的加减', 2, 'system', 'system');

INSERT INTO `textbook_lessons` (`id`, `unit_id`, `name`, `sort_order`, `created_by`, `updated_by`) VALUES
('lesson-1-1', 'unit-1', '1.1 正数和负数', 1, 'system', 'system'),
('lesson-1-2', 'unit-1', '1.2 有理数', 2, 'system', 'system');

INSERT INTO `knowledge_points` (`id`, `lesson_id`, `parent_knowledge_point_id`, `name`, `difficulty`, `description`, `created_by`, `updated_by`) VALUES
('kp-1', 'lesson-1-1', NULL, '正数的概念', 1, '大于0的数叫做正数', 'system', 'system'),
('kp-2', 'lesson-1-1', NULL, '负数的概念', 1, '小于0的数叫做负数', 'system', 'system'),
('kp-3', 'lesson-1-2', NULL, '有理数的分类', 2, '有理数包括整数和分数', 'system', 'system');

-- =============================================
-- 6. 插入示例题目
-- =============================================

INSERT INTO `questions` (`id`, `subject_id`, `content`, `options_config`, `question_type`, `answer`, `explanation`, `difficulty`, `created_by`, `updated_by`) VALUES
('q-1', 'sub-math', '<p>下列各数中，是负数的是（　　）</p>', '{"options": ["A. 0", "B. -1", "C. 1", "D. 2"]}', 'SingleChoice', 'B', '<p>负数是小于0的数，所以答案是B</p>', 1, 'system', 'system'),
('q-2', 'sub-math', '<p>|-5| = _____</p>', NULL, 'FillBlank', '5', '<p>绝对值表示数轴上的点到原点的距离</p>', 2, 'system', 'system'),
('q-3', 'sub-math', '<p>计算：(-3) + 5 = ?</p>', NULL, 'Subjective', '2', '<p>负数加正数，按绝对值相减，取绝对值较大数的符号</p>', 2, 'system', 'system');

INSERT INTO `question_knowledge` (`id`, `question_id`, `knowledge_point_id`, `weight`, `created_by`, `updated_by`) VALUES
('qk-1', 'q-1', 'kp-2', 100, 'system', 'system'),
('qk-2', 'q-2', 'kp-3', 80, 'system', 'system');

-- =============================================
-- 7. 插入示例试卷
-- =============================================

INSERT INTO `exams` (`id`, `subject_id`, `title`, `total_score`, `suggested_duration`, `status`, `created_by`, `updated_by`) VALUES
('exam-1', 'sub-math', '第一章单元测试', 100, 90, 'Published', 'user-teacher-1', 'user-teacher-1');

-- 试卷节点（树形结构示例）
INSERT INTO `exam_nodes` (`id`, `exam_id`, `parent_node_id`, `node_type`, `question_id`, `title`, `description`, `score`, `sort_order`, `created_by`, `updated_by`) VALUES
('node-1', 'exam-1', NULL, 'Group', NULL, '第一部分：选择题', '本大题共2小题，每小题5分，共10分', 10, 1, 'user-teacher-1', 'user-teacher-1'),
('node-1-1', 'exam-1', 'node-1', 'Question', 'q-1', NULL, NULL, 5, 1, 'user-teacher-1', 'user-teacher-1'),
('node-1-2', 'exam-1', 'node-1', 'Question', 'q-2', NULL, NULL, 5, 2, 'user-teacher-1', 'user-teacher-1'),
('node-2', 'exam-1', NULL, 'Group', NULL, '第二部分：解答题', '需要写出完整步骤', 90, 2, 'user-teacher-1', 'user-teacher-1'),
('node-2-1', 'exam-1', 'node-2', 'Question', 'q-3', NULL, NULL, 90, 1, 'user-teacher-1', 'user-teacher-1');

-- =============================================
-- 8. 插入示例作业
-- =============================================

INSERT INTO `assignments` (`id`, `exam_id`, `class_id`, `title`, `start_time`, `end_time`, `allow_late_submission`, `auto_score_enabled`, `created_by`, `updated_by`) VALUES
('assignment-1', 'exam-1', 'class-1', '第一章课后作业', '2024-11-20 08:00:00', '2024-11-27 23:59:59', TRUE, TRUE, 'user-teacher-1', 'user-teacher-1');

-- 插入学生提交记录
INSERT INTO `student_submissions` (`id`, `assignment_id`, `student_id`, `submission_status`, `submit_time`, `time_spent_seconds`, `total_score`, `created_by`, `updated_by`) VALUES
('sub-1', 'assignment-1', 'user-student-1', 'Graded', '2024-11-25 10:30:00', 1800, 95, 'user-student-1', 'user-teacher-1');

-- 插入答题详情
INSERT INTO `submission_details` (`id`, `submission_id`, `exam_node_id`, `student_answer`, `score`, `judgement`, `teacher_comment`, `created_by`, `updated_by`) VALUES
('sd-1', 'sub-1', 'node-1-1', 'B', 5, 'Correct', '正确', 'user-student-1', 'user-teacher-1'),
('sd-2', 'sub-1', 'node-1-2', '5', 5, 'Correct', '正确', 'user-student-1', 'user-teacher-1'),
('sd-3', 'sub-1', 'node-2-1', '(-3) + 5 = 5 - 3 = 2', 85, 'Partial', '步骤正确，但表述可以更规范', 'user-student-1', 'user-teacher-1');

-- =============================================
-- 完成
-- =============================================

SELECT '初始化数据插入完成' AS Status;