import { apiDelete, apiGet, apiPost, apiPut } from './http'
import type {
  ImportJob,
  DashboardData,
  PageData,
  Paper,
  Permission,
  Question,
  QuestionBank,
  ReportBankDetail,
  ReportDimension,
  ReportFilters,
  ReportInsights,
  ReportMastery,
  ReportOptions,
  ReportOverview,
  ReportQuestionError,
  ReportStudent,
  ReportStudentDetail,
  ReportTrend,
  SchoolClass,
  TaxonomyItem,
  User,
} from '@/types/api'

export function fetchDashboard() {
  return apiGet<DashboardData>('/api/admin/dashboard')
}

export function fetchBanks(params?: Record<string, unknown>) {
  return apiGet<PageData<QuestionBank>>('/api/admin/banks', params)
}

export function createBank(payload: Partial<QuestionBank>) {
  return apiPost<QuestionBank>('/api/admin/banks', payload)
}

export function updateBank(bankId: number, payload: Partial<QuestionBank>) {
  return apiPut<QuestionBank>(`/api/admin/banks/${bankId}`, payload)
}

export function deleteBank(bankId: number) {
  return apiDelete<null>(`/api/admin/banks/${bankId}`)
}

export function shareBank(bankId: number, targets: Array<{ type: 'user' | 'class'; id: number }>) {
  return apiPost<null>(`/api/admin/banks/${bankId}/shares`, { targets })
}

export function fetchQuestions(params?: Record<string, unknown>) {
  return apiGet<PageData<Question>>('/api/admin/questions', params)
}

export function createQuestion(payload: Record<string, unknown>) {
  return apiPost('/api/admin/questions', payload)
}

export function updateQuestion(questionId: number, payload: Partial<Question>) {
  return apiPut<Question>(`/api/admin/questions/${questionId}`, payload)
}

export function deleteQuestion(questionId: number) {
  return apiDelete<null>(`/api/admin/questions/${questionId}`)
}

export function importQuestions(bankId: number, file: File) {
  const form = new FormData()
  form.append('file', file)
  return apiPost<ImportJob>(`/api/admin/banks/${bankId}/imports`, form)
}

export function validateQuestionImport(bankId: number, file: File) {
  const form = new FormData()
  form.append('file', file)
  return apiPost<{
    valid: boolean
    rows: Array<Record<string, unknown>>
    errors: Array<{ row: number; message: string }>
    duplicates: Array<{ row: number; message: string; content: string; type: string }>
    importable_count: number
    type: string
    file_path: string
  }>(`/api/admin/banks/${bankId}/imports/validate`, form)
}

export function importQuestionRows(bankId: number, payload: {
  rows: Array<Record<string, unknown>>
  type?: string
  file_path?: string
}) {
  return apiPost<ImportJob>(`/api/admin/banks/${bankId}/imports/rows`, payload)
}

export function validateQuestionRows(bankId: number, payload: {
  rows: Array<Record<string, unknown>>
}) {
  return apiPost<{
    valid: boolean
    rows: Array<Record<string, unknown>>
    errors: Array<{ row: number; message: string }>
    duplicates: Array<{ row: number; message: string; content: string; type: string }>
    importable_count: number
  }>(`/api/admin/banks/${bankId}/imports/rows/validate`, payload)
}

export function exportBank(bankId: number) {
  return apiPost(`/api/admin/banks/${bankId}/export`)
}

export function fetchCategories(bankId: number) {
  return apiGet<TaxonomyItem[]>(`/api/admin/banks/${bankId}/categories`)
}

export function createCategory(bankId: number, payload: { name: string; parent_id?: number; sort?: number }) {
  return apiPost(`/api/admin/banks/${bankId}/categories`, payload)
}

export function fetchTags(bankId: number) {
  return apiGet<TaxonomyItem[]>(`/api/admin/banks/${bankId}/tags`)
}

export function createTag(bankId: number, payload: { name: string }) {
  return apiPost(`/api/admin/banks/${bankId}/tags`, payload)
}

export function fetchUsers(params?: Record<string, unknown>) {
  return apiGet<PageData<User>>('/api/admin/users', params)
}

export function fetchClasses(params?: Record<string, unknown>) {
  return apiGet<PageData<SchoolClass>>('/api/admin/classes', params)
}

export function createClass(payload: { name: string; description?: string }) {
  return apiPost<SchoolClass>('/api/admin/classes', payload)
}

export function updateClass(classId: number, payload: { name?: string; description?: string; is_active?: boolean }) {
  return apiPut<SchoolClass>(`/api/admin/classes/${classId}`, payload)
}

export function addClassMember(classId: number, payload: { user_id: number; role?: string }) {
  return apiPost<SchoolClass>(`/api/admin/classes/${classId}/members`, payload)
}

export function addClassMembers(classId: number, payload: { user_ids: number[]; role?: string }) {
  return apiPost<SchoolClass>(`/api/admin/classes/${classId}/members/batch`, payload)
}

export function fetchPapers(params?: Record<string, unknown>) {
  return apiGet<PageData<Paper>>('/api/admin/papers', params)
}

export function fetchPaper(paperId: number) {
  return apiGet<Paper>(`/api/admin/papers/${paperId}`)
}

export function createPaper(payload: {
  title: string
  description?: string
  question_bank_id?: number
  duration_minutes?: number
  attempt_limit?: number
  is_active?: boolean
  questions?: Array<{ id: number; score?: number }>
}) {
  return apiPost<Paper>('/api/admin/papers', payload)
}

export function updatePaper(paperId: number, payload: {
  title?: string
  description?: string
  question_bank_id?: number
  duration_minutes?: number
  attempt_limit?: number
  is_active?: boolean
  questions?: Array<{ id: number; score?: number }>
}) {
  return apiPut<Paper>(`/api/admin/papers/${paperId}`, payload)
}

export function deletePaper(paperId: number) {
  return apiDelete<null>(`/api/admin/papers/${paperId}`)
}

export function createUser(payload: { name: string; email: string; password: string; role: string }) {
  return apiPost<User>('/api/admin/users', payload)
}

export function updateUser(userId: number, payload: {
  name?: string
  email?: string
  role?: string
  is_active?: boolean
  password?: string
}) {
  return apiPut<User>(`/api/admin/users/${userId}`, payload)
}

export function fetchInvites(params?: Record<string, unknown>) {
  return apiGet<PageData<Record<string, unknown>>>('/api/admin/invite-codes', params)
}

export function createInvite(payload: { role: string; assigned_name?: string; max_uses: number; expires_at?: string }) {
  return apiPost('/api/admin/invite-codes', payload)
}

export function deleteInvite(inviteId: number) {
  return apiDelete<null>(`/api/admin/invite-codes/${inviteId}`)
}

export function fetchPermissions() {
  return apiGet<{
    permissions: Permission[]
    role_permissions: Record<string, number[]>
  }>('/api/admin/permissions')
}

export function syncRolePermissions(role: string, permissionIds: number[]) {
  return apiPut(`/api/admin/roles/${role}/permissions`, { permission_ids: permissionIds })
}

export function fetchSettings() {
  return apiGet<Array<{ key: string; value: unknown; group: string }>>('/api/admin/settings')
}

export function saveSettings(settings: Record<string, unknown>) {
  return apiPut('/api/admin/settings', { settings })
}

export function fetchReportOptions(params?: ReportFilters) {
  return apiGet<ReportOptions>('/api/admin/reports/options', params)
}

export function fetchReportOverview(params?: ReportFilters) {
  return apiGet<ReportOverview>('/api/admin/reports/overview', params)
}

export function fetchReportTrends(params?: ReportFilters) {
  return apiGet<ReportTrend[]>('/api/admin/reports/trends', params)
}

export function fetchQuestionErrors(params?: ReportFilters) {
  return apiGet<PageData<ReportQuestionError>>('/api/admin/reports/question-errors', params)
}

export function fetchClassRanking(params?: ReportFilters) {
  return apiGet<Array<ReportDimension & { members_count: number; attempts: number; completion_rate: number }>>('/api/admin/reports/class-ranking', params)
}

export function fetchMastery(params?: ReportFilters) {
  return apiGet<ReportMastery>('/api/admin/reports/mastery', params)
}

export function fetchReportStudents(params?: ReportFilters) {
  return apiGet<PageData<ReportStudent>>('/api/admin/reports/students', params)
}

export function fetchReportStudentDetail(userId: number, params?: ReportFilters) {
  return apiGet<ReportStudentDetail>(`/api/admin/reports/students/${userId}`, params)
}

export function fetchReportBankDetail(bankId: number, params?: ReportFilters) {
  return apiGet<ReportBankDetail>(`/api/admin/reports/banks/${bankId}`, params)
}

export function fetchReportInsights(params?: ReportFilters) {
  return apiGet<ReportInsights>('/api/admin/reports/insights', params)
}

export function exportReport(params?: ReportFilters) {
  return apiPost('/api/admin/reports/export', params)
}

export function fetchLogs(params?: Record<string, unknown>) {
  return apiGet<PageData<Record<string, unknown>>>('/api/admin/logs', params)
}