import type { Freight } from "@edr/types";

import { api as client } from "../auth/http";
import { unwrap } from "@/utils/endpoint";
import { URL_CONSTANTS } from "@/constants/URLS";

const X = URL_CONSTANTS.GL_EXCHANGE;

export interface GlExchangeUpload {
  title: string;
  visibleToCustomer: boolean;
  file: File;
}

export interface GlExchangeEdit {
  title?: string;
  visibleToCustomer?: boolean;
  /** Optional replacement bytes — omit to keep the stored file. */
  file?: File | null;
}

const multipart = { headers: { "Content-Type": "multipart/form-data" } };

/** GL Ethiopia ↔ GL Djibouti shared documents for one booking or contract. */
export const glExchangeService = {
  list: async (entityId: string): Promise<Freight.GlExchangeDocument[]> => {
    const response = await client.get(X.FOR_ENTITY(entityId));
    return (unwrap(response.data) ?? []) as Freight.GlExchangeDocument[];
  },

  upload: async (
    entityId: string,
    input: GlExchangeUpload,
  ): Promise<Freight.GlExchangeDocument> => {
    const form = new FormData();
    form.append("file", input.file);
    form.append("title", input.title);
    form.append("visibleToCustomer", String(input.visibleToCustomer));
    const response = await client.post(X.FOR_ENTITY(entityId), form, multipart);
    return unwrap(response.data) as Freight.GlExchangeDocument;
  },

  update: async (
    documentId: string,
    input: GlExchangeEdit,
  ): Promise<Freight.GlExchangeDocument> => {
    const form = new FormData();
    if (input.file) form.append("file", input.file);
    if (input.title != null) form.append("title", input.title);
    if (input.visibleToCustomer != null) {
      form.append("visibleToCustomer", String(input.visibleToCustomer));
    }
    const response = await client.patch(X.DOCUMENT(documentId), form, multipart);
    return unwrap(response.data) as Freight.GlExchangeDocument;
  },

  remove: async (documentId: string): Promise<void> => {
    await client.delete(X.DOCUMENT(documentId));
  },
};