import { PrismaClient } from '@prisma/client';
import * as bcrypt from 'bcrypt';

const prisma = new PrismaClient();

// 初始权限数据
const permissions = [
  // 用户管理权限
  { code: 'user:create', name: '创建用户', resource: 'user', action: 'create' },
  { code: 'user:read', name: '查看用户', resource: 'user', action: 'read' },
  { code: 'user:update', name: '更新用户', resource: 'user', action: 'update' },
  { code: 'user:delete', name: '删除用户', resource: 'user', action: 'delete' },
  // 角色管理权限
  { code: 'role:create', name: '创建角色', resource: 'role', action: 'create' },
  { code: 'role:read', name: '查看角色', resource: 'role', action: 'read' },
  { code: 'role:update', name: '更新角色', resource: 'role', action: 'update' },
  { code: 'role:delete', name: '删除角色', resource: 'role', action: 'delete' },
  // 权限管理权限
  { code: 'permission:create', name: '创建权限', resource: 'permission', action: 'create' },
  { code: 'permission:read', name: '查看权限', resource: 'permission', action: 'read' },
  { code: 'permission:update', name: '更新权限', resource: 'permission', action: 'update' },
  { code: 'permission:delete', name: '删除权限', resource: 'permission', action: 'delete' },
  // 菜单管理权限
  { code: 'menu:create', name: '创建菜单', resource: 'menu', action: 'create' },
  { code: 'menu:read', name: '查看菜单', resource: 'menu', action: 'read' },
  { code: 'menu:update', name: '更新菜单', resource: 'menu', action: 'update' },
  { code: 'menu:delete', name: '删除菜单', resource: 'menu', action: 'delete' },
  // 文件管理权限
  { code: 'file:read', name: '查看文件', resource: 'file', action: 'read' },
  { code: 'file:delete', name: '删除文件', resource: 'file', action: 'delete' },
  // 教师管理权限
  { code: 'teacher:create', name: '创建教师', resource: 'teacher', action: 'create' },
  { code: 'teacher:read', name: '查看教师', resource: 'teacher', action: 'read' },
  { code: 'teacher:update', name: '更新教师', resource: 'teacher', action: 'update' },
  { code: 'teacher:delete', name: '删除教师', resource: 'teacher', action: 'delete' },
  // 班级管理权限
  { code: 'class:create', name: '创建班级', resource: 'class', action: 'create' },
  { code: 'class:read', name: '查看班级', resource: 'class', action: 'read' },
  { code: 'class:update', name: '更新班级', resource: 'class', action: 'update' },
  { code: 'class:delete', name: '删除班级', resource: 'class', action: 'delete' },
  // 学生管理权限
  { code: 'student:create', name: '创建学生', resource: 'student', action: 'create' },
  { code: 'student:read', name: '查看学生', resource: 'student', action: 'read' },
  { code: 'student:update', name: '更新学生', resource: 'student', action: 'update' },
  { code: 'student:delete', name: '删除学生', resource: 'student', action: 'delete' },
  // OIDC 客户端管理权限
  { code: 'oidc-client:create', name: '创建 OIDC 客户端', resource: 'oidc-client', action: 'create' },
  { code: 'oidc-client:read', name: '查看 OIDC 客户端', resource: 'oidc-client', action: 'read' },
  { code: 'oidc-client:update', name: '更新 OIDC 客户端', resource: 'oidc-client', action: 'update' },
  { code: 'oidc-client:delete', name: '删除 OIDC 客户端', resource: 'oidc-client', action: 'delete' },
];

// 初始角色数据
const roles = [
  {
    code: 'super_admin',
    name: '超级管理员',
    description: '拥有系统所有权限',
    isSystem: true,
    sort: 0,
  },
  {
    code: 'admin',
    name: '管理员',
    description: '拥有大部分管理权限',
    isSystem: true,
    sort: 1,
  },
  {
    code: 'user',
    name: '普通用户',
    description: '基础用户权限',
    isSystem: true,
    sort: 2,
  },
];

// 初始菜单数据
const menus = [
  {
    code: 'dashboard',
    name: '仪表盘',
    type: 'menu',
    path: '/dashboard',
    icon: 'LayoutDashboard',
    sort: 0,
    isStatic: true,
  },
  // 教学管理目录
  {
    code: 'teaching',
    name: '教学管理',
    type: 'dir',
    icon: 'GraduationCap',
    sort: 10,
    isStatic: false,
  },
  {
    code: 'student-management',
    name: '学生管理',
    type: 'menu',
    path: '/students',
    icon: 'Users',
    sort: 0,
    isStatic: false,
  },
  {
    code: 'teacher-management',
    name: '教师管理',
    type: 'menu',
    path: '/teachers',
    icon: 'UserCheck',
    sort: 1,
    isStatic: false,
  },
  {
    code: 'class-management',
    name: '班级管理',
    type: 'menu',
    path: '/classes',
    icon: 'School',
    sort: 2,
    isStatic: false,
  },
  // 系统管理目录
  {
    code: 'system',
    name: '系统管理',
    type: 'dir',
    icon: 'Settings',
    sort: 100,
    isStatic: true,
  },
  {
    code: 'user-management',
    name: '用户管理',
    type: 'menu',
    path: '/users',
    icon: 'Users',
    sort: 0,
    isStatic: true,
  },
  {
    code: 'file-management',
    name: '文件管理',
    type: 'menu',
    path: '/files',
    icon: 'FolderOpen',
    sort: 1,
    isStatic: true,
  },
  {
    code: 'role-management',
    name: '角色管理',
    type: 'menu',
    path: '/roles',
    icon: 'Shield',
    sort: 2,
    isStatic: true,
  },
  {
    code: 'permission-management',
    name: '权限管理',
    type: 'menu',
    path: '/permissions',
    icon: 'Key',
    sort: 3,
    isStatic: true,
  },
  {
    code: 'menu-management',
    name: '菜单管理',
    type: 'menu',
    path: '/menus',
    icon: 'Menu',
    sort: 4,
    isStatic: true,
  },
  {
    code: 'oidc-client-management',
    name: 'OIDC 客户端',
    type: 'menu',
    path: '/oidc-clients',
    icon: 'KeyRound',
    sort: 5,
    isStatic: true,
  },
  {
    code: 'profile',
    name: '个人中心',
    type: 'menu',
    path: '/profile',
    icon: 'User',
    sort: 200,
    isStatic: true,
  },
  {
    code: 'settings',
    name: '系统设置',
    type: 'menu',
    path: '/settings',
    icon: 'Settings',
    sort: 201,
    isStatic: true,
  },
];

// 系统管理子菜单 codes
const systemSubMenuCodes = [
  'user-management',
  'file-management',
  'role-management',
  'permission-management',
  'menu-management',
  'oidc-client-management',
];

// 教学管理子菜单 codes
const teachingSubMenuCodes = [
  'student-management',
  'teacher-management',
  'class-management',
];

async function main() {
  console.log('开始初始化种子数据...');

  // 1. 创建权限
  console.log('创建权限...');
  for (const permission of permissions) {
    await prisma.permission.upsert({
      where: { code: permission.code },
      update: permission,
      create: permission,
    });
  }
  console.log(`已创建 ${permissions.length} 个权限`);

  // 2. 创建角色
  console.log('创建角色...');
  for (const role of roles) {
    await prisma.role.upsert({
      where: { code: role.code },
      update: role,
      create: role,
    });
  }
  console.log(`已创建 ${roles.length} 个角色`);

  // 3. 创建菜单
  console.log('创建菜单...');

  // 所有子菜单 codes
  const allSubMenuCodes = [...systemSubMenuCodes, ...teachingSubMenuCodes];

  // 先创建顶级菜单（排除所有子菜单）
  const topMenus = menus.filter((m) => !allSubMenuCodes.includes(m.code));
  for (const menu of topMenus) {
    await prisma.menu.upsert({
      where: { code: menu.code },
      update: menu,
      create: menu,
    });
  }

  // 获取系统管理菜单的 ID
  const systemMenu = await prisma.menu.findUnique({
    where: { code: 'system' },
  });

  // 创建系统管理子菜单
  if (systemMenu) {
    const subMenus = menus.filter((m) => systemSubMenuCodes.includes(m.code));
    for (const menu of subMenus) {
      await prisma.menu.upsert({
        where: { code: menu.code },
        update: { ...menu, parentId: systemMenu.id },
        create: { ...menu, parentId: systemMenu.id },
      });
    }
  }

  // 获取教学管理菜单的 ID
  const teachingMenu = await prisma.menu.findUnique({
    where: { code: 'teaching' },
  });

  // 创建教学管理子菜单
  if (teachingMenu) {
    const subMenus = menus.filter((m) => teachingSubMenuCodes.includes(m.code));
    for (const menu of subMenus) {
      await prisma.menu.upsert({
        where: { code: menu.code },
        update: { ...menu, parentId: teachingMenu.id },
        create: { ...menu, parentId: teachingMenu.id },
      });
    }
  }
  console.log(`已创建 ${menus.length} 个菜单`);

  // 4. 清空所有角色的权限和菜单（不分配任何默认权限和菜单）
  console.log('清空角色权限和菜单...');
  const adminRole = await prisma.role.findUnique({
    where: { code: 'admin' },
  });
  const userRole = await prisma.role.findUnique({
    where: { code: 'user' },
  });

  if (adminRole) {
    await prisma.rolePermission.deleteMany({
      where: { roleId: adminRole.id },
    });
    await prisma.roleMenu.deleteMany({
      where: { roleId: adminRole.id },
    });
    console.log('已清空管理员角色的权限和菜单');
  }

  if (userRole) {
    await prisma.rolePermission.deleteMany({
      where: { roleId: userRole.id },
    });
    await prisma.roleMenu.deleteMany({
      where: { roleId: userRole.id },
    });
    console.log('已清空普通用户角色的权限和菜单');
  }

  // 5. 创建超级管理员用户
  console.log('创建超级管理员用户...');
  const superAdminPassword = await bcrypt.hash('admin123', 10);

  // 由于复合唯一约束包含 deletedAt，无法使用 upsert，改用 findFirst + update/create
  let superAdminUser = await prisma.user.findFirst({
    where: { email: 'admin@seclusion.dev' },
  });

  if (superAdminUser) {
    superAdminUser = await prisma.user.update({
      where: { id: superAdminUser.id },
      data: { isSuperAdmin: true },
    });
  } else {
    superAdminUser = await prisma.user.create({
      data: {
        email: 'admin@seclusion.dev',
        password: superAdminPassword,
        name: '超级管理员',
        isSuperAdmin: true,
      },
    });
  }

  // 为超管用户分配超管角色
  const superAdminRole = await prisma.role.findUnique({
    where: { code: 'super_admin' },
  });

  if (superAdminRole) {
    await prisma.userRole.upsert({
      where: {
        userId_roleId: {
          userId: superAdminUser.id,
          roleId: superAdminRole.id,
        },
      },
      update: {},
      create: {
        userId: superAdminUser.id,
        roleId: superAdminRole.id,
      },
    });
  }

  console.log('超级管理员用户创建完成');
  console.log('  邮箱: admin@seclusion.dev');
  console.log('  密码: admin123');

  // 6. 创建教学管理演示数据
  console.log('\n创建教学管理演示数据...');

  // 6.1 创建教师
  const teachersData = [
    { teacherNo: 'T001', name: '张明', gender: 'male', phone: '13800000001', email: 'zhangming@school.edu', subject: '语文' },
    { teacherNo: 'T002', name: '李华', gender: 'female', phone: '13800000002', email: 'lihua@school.edu', subject: '数学' },
    { teacherNo: 'T003', name: '王芳', gender: 'female', phone: '13800000003', email: 'wangfang@school.edu', subject: '英语' },
    { teacherNo: 'T004', name: '赵强', gender: 'male', phone: '13800000004', email: 'zhaoqiang@school.edu', subject: '物理' },
    { teacherNo: 'T005', name: '陈静', gender: 'female', phone: '13800000005', email: 'chenjing@school.edu', subject: '化学' },
    { teacherNo: 'T006', name: '刘伟', gender: 'male', phone: '13800000006', email: 'liuwei@school.edu', subject: '生物' },
    { teacherNo: 'T007', name: '周敏', gender: 'female', phone: '13800000007', email: 'zhoumin@school.edu', subject: '历史' },
    { teacherNo: 'T008', name: '吴刚', gender: 'male', phone: '13800000008', email: 'wugang@school.edu', subject: '体育' },
  ];

  const teachers: Record<string, { id: string }> = {};
  for (const teacher of teachersData) {
    const created = await prisma.teacher.upsert({
      where: { teacherNo: teacher.teacherNo },
      update: teacher,
      create: teacher,
    });
    teachers[teacher.teacherNo] = created;
  }
  console.log(`已创建 ${teachersData.length} 名教师`);

  // 6.2 创建班级
  const classesData = [
    { code: 'C2024-01', name: '高一(1)班', grade: '高一', headTeacherNo: 'T001' },
    { code: 'C2024-02', name: '高一(2)班', grade: '高一', headTeacherNo: 'T002' },
    { code: 'C2024-03', name: '高二(1)班', grade: '高二', headTeacherNo: 'T003' },
    { code: 'C2024-04', name: '高三(1)班', grade: '高三', headTeacherNo: 'T004' },
  ];

  const classes: Record<string, { id: string }> = {};
  for (const cls of classesData) {
    const headTeacher = teachers[cls.headTeacherNo];
    const created = await prisma.class.upsert({
      where: { code: cls.code },
      update: { name: cls.name, grade: cls.grade, headTeacherId: headTeacher?.id },
      create: { code: cls.code, name: cls.name, grade: cls.grade, headTeacherId: headTeacher?.id },
    });
    classes[cls.code] = created;
  }
  console.log(`已创建 ${classesData.length} 个班级`);

  // 6.3 分配任课教师（多对多）
  const classTeacherAssignments = [
    { classCode: 'C2024-01', teacherNos: ['T001', 'T002', 'T003', 'T004', 'T008'] },
    { classCode: 'C2024-02', teacherNos: ['T002', 'T003', 'T005', 'T006', 'T008'] },
    { classCode: 'C2024-03', teacherNos: ['T003', 'T004', 'T005', 'T007', 'T008'] },
    { classCode: 'C2024-04', teacherNos: ['T001', 'T002', 'T004', 'T006', 'T007'] },
  ];

  for (const assignment of classTeacherAssignments) {
    const classEntity = classes[assignment.classCode];
    if (!classEntity) continue;

    // 先删除该班级的所有任课教师关系
    await prisma.classTeacher.deleteMany({
      where: { classId: classEntity.id },
    });

    // 创建新的任课教师关系
    for (const teacherNo of assignment.teacherNos) {
      const teacher = teachers[teacherNo];
      if (!teacher) continue;

      await prisma.classTeacher.create({
        data: {
          classId: classEntity.id,
          teacherId: teacher.id,
        },
      });
    }
  }
  console.log('已分配班级任课教师');

  // 6.4 创建学生
  const studentsData = [
    { studentNo: 'S2024001', name: '小明', gender: 'male', phone: '13900000001', classCode: 'C2024-01' },
    { studentNo: 'S2024002', name: '小红', gender: 'female', phone: '13900000002', classCode: 'C2024-01' },
    { studentNo: 'S2024003', name: '小刚', gender: 'male', phone: '13900000003', classCode: 'C2024-01' },
    { studentNo: 'S2024004', name: '小丽', gender: 'female', phone: '13900000004', classCode: 'C2024-01' },
    { studentNo: 'S2024005', name: '小华', gender: 'male', phone: '13900000005', classCode: 'C2024-02' },
    { studentNo: 'S2024006', name: '小芳', gender: 'female', phone: '13900000006', classCode: 'C2024-02' },
    { studentNo: 'S2024007', name: '小强', gender: 'male', phone: '13900000007', classCode: 'C2024-02' },
    { studentNo: 'S2024008', name: '小敏', gender: 'female', phone: '13900000008', classCode: 'C2024-03' },
    { studentNo: 'S2024009', name: '小伟', gender: 'male', phone: '13900000009', classCode: 'C2024-03' },
    { studentNo: 'S2024010', name: '小静', gender: 'female', phone: '13900000010', classCode: 'C2024-03' },
    { studentNo: 'S2024011', name: '小杰', gender: 'male', phone: '13900000011', classCode: 'C2024-04' },
    { studentNo: 'S2024012', name: '小雪', gender: 'female', phone: '13900000012', classCode: 'C2024-04' },
    { studentNo: 'S2024013', name: '小龙', gender: 'male', phone: '13900000013', classCode: 'C2024-04' },
    { studentNo: 'S2024014', name: '小燕', gender: 'female', phone: '13900000014', classCode: 'C2024-04' },
    { studentNo: 'S2024015', name: '小峰', gender: 'male', phone: '13900000015', classCode: 'C2024-04' },
  ];

  for (const student of studentsData) {
    const classEntity = classes[student.classCode];
    await prisma.student.upsert({
      where: { studentNo: student.studentNo },
      update: {
        name: student.name,
        gender: student.gender,
        phone: student.phone,
        classId: classEntity?.id,
      },
      create: {
        studentNo: student.studentNo,
        name: student.name,
        gender: student.gender,
        phone: student.phone,
        classId: classEntity?.id,
      },
    });
  }
  console.log(`已创建 ${studentsData.length} 名学生`);

  console.log('\n种子数据初始化完成！');
}

main()
  .catch((e) => {
    console.error('种子数据初始化失败:', e);
    process.exit(1);
  })
  .finally(async () => {
    await prisma.$disconnect();
  });