import axios, { AxiosAdapter, AxiosResponse } from "axios";
import { describe, expect, it } from "vitest";
import { SapBusinessOneServiceLayer } from "../src/SapBusinessOneServiceLayer";
import { SapB1Config } from "../src/config";

const config: SapB1Config = {
  baseUrl: "https://sap.example.local:50000",
  companyDB: "SBODEMOUS",
  username: "manager",
  password: "secret",
  timeout: 30_000,
  rejectUnauthorized: true,
  retryCount: 0,
  retryDelayMs: 0
};

function response(data: unknown, requestConfig: Parameters<AxiosAdapter>[0], status = 200): AxiosResponse {
  return {
    data,
    status,
    statusText: "OK",
    headers: {},
    config: requestConfig
  };
}

describe("getSystemInfo", () => {
  it("collects version, entity sets and customization metadata, isolating section errors", async () => {
    const http = axios.create({
      adapter: async (requestConfig) => {
        const url = String(requestConfig.url);

        if (url === "/Login") {
          return {
            ...response({ SessionId: "abc123", Version: "1000230", SessionTimeout: 30 }, requestConfig),
            headers: { "set-cookie": ["B1SESSION=abc123; Path=/b1s/v1"] }
          };
        }

        if (url === "/Logout") {
          return response({}, requestConfig);
        }

        if (url === "/") {
          return response(
            { value: [{ name: "Items", url: "Items" }, { name: "BusinessPartners", url: "BusinessPartners" }] },
            requestConfig
          );
        }

        if (url === "UserFieldsMD") {
          return response({ value: [{ TableName: "OCRD", FieldID: 0, Name: "MyField", Type: "db_Alpha" }] }, requestConfig);
        }

        if (url === "UserTablesMD") {
          return response({ value: [{ TableName: "MY_TABLE", TableDescription: "Custom table" }] }, requestConfig);
        }

        if (url === "UserObjectsMD") {
          return response({ value: [] }, requestConfig);
        }

        if (url === "CompanyService_GetAdminInfo") {
          return Promise.reject({
            isAxiosError: true,
            message: "Forbidden",
            response: { status: 403, data: { error: { message: { value: "No permission" } } } }
          });
        }

        throw new Error(`Unexpected request URL: ${url}`);
      }
    });

    const sap = new SapBusinessOneServiceLayer(config, { http });
    const info = await sap.getSystemInfo();

    expect(info.serviceLayer).toEqual({ version: "1000230", sessionTimeoutMinutes: 30 });
    expect(info.entitySets).toEqual(["BusinessPartners", "Items"]);
    expect(info.userFields).toEqual([{ TableName: "OCRD", FieldID: 0, Name: "MyField", Type: "db_Alpha" }]);
    expect(info.userTables).toEqual([{ TableName: "MY_TABLE", TableDescription: "Custom table" }]);
    expect(info.userObjects).toEqual([]);
    expect(info.adminInfo).toEqual({ error: "No permission" });
  });

  it("keeps login info available after logout so the login endpoint can report the version", async () => {
    const http = axios.create({
      adapter: async (requestConfig) => {
        if (requestConfig.url === "/Login") {
          return {
            ...response({ SessionId: "abc123", Version: "1000230", SessionTimeout: 30 }, requestConfig),
            headers: { "set-cookie": ["B1SESSION=abc123; Path=/b1s/v1"] }
          };
        }

        return response({}, requestConfig);
      }
    });

    const sap = new SapBusinessOneServiceLayer(config, { http });
    await sap.login();
    await sap.logout();

    expect(sap.client.loginInfo).toEqual({ version: "1000230", sessionTimeoutMinutes: 30 });
  });
});