/**
 * Platform API
 * API functions for platform-level operations (businesses, users, etc.)
 */

import apiClient from './client';

export interface PlatformBusinessOwner {
  id: number;
  username: string;
  full_name: string;
  email: string;
  role: string;
}

export interface PlatformBusiness {
  id: number;
  name: string;
  subdomain: string;
  tier: string;
  is_active: boolean;
  created_on: string;
  user_count: number;
  owner: PlatformBusinessOwner | null;
  max_users: number;
  max_resources: number;
  contact_email?: string;
  phone?: string;
  // Platform permissions
  can_manage_oauth_credentials: boolean;
  can_accept_payments: boolean;
  can_use_custom_domain: boolean;
  can_white_label: boolean;
  can_api_access: boolean;
}

export interface PlatformBusinessUpdate {
  name?: string;
  is_active?: boolean;
  subscription_tier?: string;
  max_users?: number;
  max_resources?: number;
  can_manage_oauth_credentials?: boolean;
  can_accept_payments?: boolean;
  can_use_custom_domain?: boolean;
  can_white_label?: boolean;
  can_api_access?: boolean;
}

export interface PlatformBusinessCreate {
  name: string;
  subdomain: string;
  subscription_tier?: string;
  is_active?: boolean;
  max_users?: number;
  max_resources?: number;
  contact_email?: string;
  phone?: string;
  can_manage_oauth_credentials?: boolean;
  // Owner details (optional)
  owner_email?: string;
  owner_name?: string;
  owner_password?: string;
}

export interface PlatformUser {
  id: number;
  email: string;
  username: string;
  name?: string;
  role?: string;
  is_active: boolean;
  is_staff: boolean;
  is_superuser: boolean;
  business: number | null;
  business_name?: string;
  business_subdomain?: string;
  date_joined: string;
  last_login?: string;
}

/**
 * Get all businesses (platform admin only)
 */
export const getBusinesses = async (): Promise<PlatformBusiness[]> => {
  const response = await apiClient.get<PlatformBusiness[]>('/api/platform/businesses/');
  return response.data;
};

/**
 * Update a business (platform admin only)
 */
export const updateBusiness = async (
  businessId: number,
  data: PlatformBusinessUpdate
): Promise<PlatformBusiness> => {
  const response = await apiClient.patch<PlatformBusiness>(
    `/api/platform/businesses/${businessId}/`,
    data
  );
  return response.data;
};

/**
 * Create a new business (platform admin only)
 */
export const createBusiness = async (
  data: PlatformBusinessCreate
): Promise<PlatformBusiness> => {
  const response = await apiClient.post<PlatformBusiness>(
    '/api/platform/businesses/',
    data
  );
  return response.data;
};

/**
 * Get all users (platform admin only)
 */
export const getUsers = async (): Promise<PlatformUser[]> => {
  const response = await apiClient.get<PlatformUser[]>('/api/platform/users/');
  return response.data;
};

/**
 * Get users for a specific business
 */
export const getBusinessUsers = async (businessId: number): Promise<PlatformUser[]> => {
  const response = await apiClient.get<PlatformUser[]>(`/api/platform/users/?business=${businessId}`);
  return response.data;
};

// ============================================================================
// Tenant Invitations
// ============================================================================

export interface TenantInvitation {
  id: number;
  email: string;
  token: string;
  status: 'PENDING' | 'ACCEPTED' | 'EXPIRED' | 'CANCELLED';
  suggested_business_name: string;
  subscription_tier: 'FREE' | 'STARTER' | 'PROFESSIONAL' | 'ENTERPRISE';
  custom_max_users: number | null;
  custom_max_resources: number | null;
  permissions: {
    can_manage_oauth_credentials?: boolean;
    can_accept_payments?: boolean;
    can_use_custom_domain?: boolean;
    can_white_label?: boolean;
    can_api_access?: boolean;
  };
  personal_message: string;
  invited_by: number;
  invited_by_email: string;
  created_at: string;
  expires_at: string;
  accepted_at: string | null;
  created_tenant: number | null;
  created_tenant_name: string | null;
  created_user: number | null;
  created_user_email: string | null;
}

export interface TenantInvitationCreate {
  email: string;
  suggested_business_name?: string;
  subscription_tier: 'FREE' | 'STARTER' | 'PROFESSIONAL' | 'ENTERPRISE';
  custom_max_users?: number | null;
  custom_max_resources?: number | null;
  permissions?: {
    can_manage_oauth_credentials?: boolean;
    can_accept_payments?: boolean;
    can_use_custom_domain?: boolean;
    can_white_label?: boolean;
    can_api_access?: boolean;
  };
  personal_message?: string;
}

export interface TenantInvitationDetail {
  email: string;
  suggested_business_name: string;
  subscription_tier: string;
  effective_max_users: number;
  effective_max_resources: number;
  permissions: {
    can_manage_oauth_credentials?: boolean;
    can_accept_payments?: boolean;
    can_use_custom_domain?: boolean;
    can_white_label?: boolean;
    can_api_access?: boolean;
  };
  expires_at: string;
}

export interface TenantInvitationAccept {
  email: string;
  password: string;
  first_name: string;
  last_name: string;
  business_name: string;
  subdomain: string;
  contact_email?: string;
  phone?: string;
}

/**
 * Get all tenant invitations (platform admin only)
 */
export const getTenantInvitations = async (): Promise<TenantInvitation[]> => {
  const response = await apiClient.get<TenantInvitation[]>('/api/platform/tenant-invitations/');
  return response.data;
};

/**
 * Create a tenant invitation (platform admin only)
 */
export const createTenantInvitation = async (
  data: TenantInvitationCreate
): Promise<TenantInvitation> => {
  const response = await apiClient.post<TenantInvitation>(
    '/api/platform/tenant-invitations/',
    data
  );
  return response.data;
};

/**
 * Resend a tenant invitation (platform admin only)
 */
export const resendTenantInvitation = async (invitationId: number): Promise<void> => {
  await apiClient.post(`/api/platform/tenant-invitations/${invitationId}/resend/`);
};

/**
 * Cancel a tenant invitation (platform admin only)
 */
export const cancelTenantInvitation = async (invitationId: number): Promise<void> => {
  await apiClient.post(`/api/platform/tenant-invitations/${invitationId}/cancel/`);
};

/**
 * Get invitation details by token (public, no auth required)
 */
export const getInvitationByToken = async (token: string): Promise<TenantInvitationDetail> => {
  const response = await apiClient.get<TenantInvitationDetail>(
    `/api/platform/tenant-invitations/token/${token}/`
  );
  return response.data;
};

/**
 * Accept an invitation by token (public, no auth required)
 */
export const acceptInvitation = async (
  token: string,
  data: TenantInvitationAccept
): Promise<{ detail: string }> => {
  const response = await apiClient.post<{ detail: string }>(
    `/api/platform/tenant-invitations/token/${token}/accept/`,
    data
  );
  return response.data;
};