/* B07 상세 설계 도면 목록·단건 API 클라이언트. */

import { API_BASE_URL, API_TIMEOUT_MS } from "@config/config_frontend";

export interface DesignDrawingItem {
  id: string;
  kind: "longitudinal" | "cross";
  label: string;
  chainage_m: number | null;
  confirmed: boolean;
}

export interface CadDrawing {
  entities: Record<string, unknown>[];
  layers: {
    id: string;
    name: string;
    isVisible: boolean;
    isLocked: boolean;
  }[];
}

export interface DesignDrawingListResponse {
  status: string;
  project_id: string;
  route_id: number;
  drawings: DesignDrawingItem[];
}

export interface DesignDrawingResponse {
  status: string;
  project_id: string;
  route_id: number;
  id: string;
  kind: "longitudinal" | "cross";
  label: string;
  drawing: CadDrawing;
  confirmed: boolean;
}

export interface DesignDrawingConfirmResponse {
  status: string;
  project_id: string;
  id: string;
  confirmed: boolean;
  all_confirmed: boolean;
}

async function requestJson<T>(path: string, init: RequestInit = {}): Promise<T> {
  const controller = new AbortController();
  const timeoutId = window.setTimeout(() => controller.abort(), API_TIMEOUT_MS);
  try {
    const response = await fetch(`${API_BASE_URL}${path}`, {
      ...init,
      credentials: "include",
      headers: { "Content-Type": "application/json" },
      signal: controller.signal,
    });
    const payload = (await response.json()) as T & { message?: string };
    if (!response.ok) throw new Error(payload.message ?? `HTTP ${response.status}`);
    return payload;
  } finally {
    window.clearTimeout(timeoutId);
  }
}

export function fetchDesignDrawingList(projectId: string): Promise<DesignDrawingListResponse> {
  return requestJson(`/projects/${projectId}/design-drawings`);
}

export function fetchDesignDrawing(
  projectId: string,
  drawingId: string,
): Promise<DesignDrawingResponse> {
  return requestJson(`/projects/${projectId}/design-drawings/${encodeURIComponent(drawingId)}`);
}

export function confirmDesignDrawing(
  projectId: string,
  drawingId: string,
  drawing: CadDrawing,
): Promise<DesignDrawingConfirmResponse> {
  return requestJson(
    `/projects/${projectId}/design-drawings/${encodeURIComponent(drawingId)}/confirm`,
    { method: "PUT", body: JSON.stringify({ drawing }) },
  );
}

export function invalidateDesignDrawing(projectId: string, drawingId: string): Promise<void> {
  return requestJson(
    `/projects/${projectId}/design-drawings/${encodeURIComponent(drawingId)}/invalidate`,
    { method: "POST" },
  );
}