import { apiFetch, type ApiSettings } from "@govoplan/core-webui";

export type OrganizationUnitItem = {
  id: string;
  tenant_id: string;
  unit_type_id?: string | null;
  parent_id?: string | null;
  slug: string;
  name: string;
  description?: string | null;
  is_active: boolean;
  settings: Record<string, unknown>;
  created_at: string;
  updated_at: string;
};

export type OrganizationFunctionItem = {
  id: string;
  tenant_id: string;
  function_type_id?: string | null;
  organization_unit_id: string;
  slug: string;
  name: string;
  description?: string | null;
  delegable: boolean;
  act_in_place_allowed: boolean;
  is_active: boolean;
  settings: Record<string, unknown>;
  created_at: string;
  updated_at: string;
};

export type OrganizationModel = {
  units: OrganizationUnitItem[];
  functions: OrganizationFunctionItem[];
};

export type IdentityOption = {
  id: string;
  display_name?: string | null;
  external_subject?: string | null;
  source: string;
  primary_account_id?: string | null;
  account_ids: string[];
  status: string;
};

export type IdentityListResponse = {
  identities: IdentityOption[];
};

export type OrganizationFunctionAssignmentItem = {
  id: string;
  tenant_id: string;
  identity_id: string;
  account_id?: string | null;
  function_id: string;
  organization_unit_id: string;
  applies_to_subunits: boolean;
  source: string;
  delegated_from_assignment_id?: string | null;
  acting_for_account_id?: string | null;
  valid_from?: string | null;
  valid_until?: string | null;
  is_active: boolean;
  settings: Record<string, unknown>;
  created_at: string;
  updated_at: string;
};

export type OrganizationFunctionAssignmentList = {
  assignments: OrganizationFunctionAssignmentItem[];
};

export type IdmSettings = {
  tenant_id: string;
  require_assignment_change_requests: boolean;
  audit_detail_level: "summary" | "standard" | "full";
  change_retention_days?: number | null;
  settings: Record<string, unknown>;
  created_at?: string | null;
  updated_at?: string | null;
};

export type OrganizationFunctionAssignmentPayload = {
  identity_id: string;
  function_id: string;
  account_id?: string | null;
  applies_to_subunits?: boolean;
  source?: string;
  delegated_from_assignment_id?: string | null;
  acting_for_account_id?: string | null;
  valid_from?: string | null;
  valid_until?: string | null;
  is_active?: boolean;
  settings?: Record<string, unknown>;
  change_request_id?: string | null;
};

export type IdmSettingsPayload = Partial<Pick<IdmSettings, "require_assignment_change_requests" | "audit_detail_level" | "change_retention_days" | "settings">>;

function post<T, P extends Record<string, unknown>>(settings: ApiSettings, path: string, payload: P): Promise<T> {
  return apiFetch<T>(settings, path, { method: "POST", body: JSON.stringify(payload) });
}

function patch<T, P extends Record<string, unknown>>(settings: ApiSettings, path: string, payload: P): Promise<T> {
  return apiFetch<T>(settings, path, { method: "PATCH", body: JSON.stringify(payload) });
}

export function getOrganizationModel(settings: ApiSettings): Promise<OrganizationModel> {
  return apiFetch<OrganizationModel>(settings, "/api/v1/organizations/model");
}

export function getOrganizationFunctionAssignments(settings: ApiSettings): Promise<OrganizationFunctionAssignmentList> {
  return apiFetch<OrganizationFunctionAssignmentList>(settings, "/api/v1/idm/organization-function-assignments");
}

export function getIdmSettings(settings: ApiSettings): Promise<IdmSettings> {
  return apiFetch<IdmSettings>(settings, "/api/v1/idm/settings");
}

export function patchIdmSettings(settings: ApiSettings, payload: IdmSettingsPayload): Promise<IdmSettings> {
  return patch(settings, "/api/v1/idm/settings", payload);
}

export function searchOrganizationIdentityOptions(settings: ApiSettings, query = "", limit = 50): Promise<IdentityListResponse> {
  const params = new URLSearchParams();
  const trimmed = query.trim();
  if (trimmed) params.set("query", trimmed);
  params.set("limit", String(limit));
  return apiFetch<IdentityListResponse>(settings, `/api/v1/idm/organization-identities?${params.toString()}`);
}

export function createOrganizationFunctionAssignment(
  settings: ApiSettings,
  payload: OrganizationFunctionAssignmentPayload
): Promise<OrganizationFunctionAssignmentItem> {
  return post(settings, "/api/v1/idm/organization-function-assignments", payload);
}

export function patchOrganizationFunctionAssignment(
  settings: ApiSettings,
  id: string,
  payload: Partial<OrganizationFunctionAssignmentPayload>
): Promise<OrganizationFunctionAssignmentItem> {
  return patch(settings, `/api/v1/idm/organization-function-assignments/${encodeURIComponent(id)}`, payload);
}