import { OpenAPIHono, createRoute, z } from "@hono/zod-openapi";

import { fetchFromMultipleSources } from "~/libs/fetchFromMultipleSources";
import { PaginatedResponseSchema } from "~/types/schema";
import { HomeTitle } from "~/types/title/homeTitle";

import { fetchSearchResultsFromAnilist } from "./anilist";

const app = new OpenAPIHono();

const route = createRoute({
  tags: ["aniplay", "title"],
  operationId: "search",
  summary: "Search for a title",
  method: "get",
  path: "/",
  request: {
    query: z.object({
      query: z.string(),
      page: z.number({ coerce: true }).int().min(1).default(1),
      limit: z.number({ coerce: true }).int().default(10),
    }),
  },
  responses: {
    200: {
      content: {
        "application/json": {
          schema: PaginatedResponseSchema(HomeTitle),
        },
      },
      description: "Returns a list of paginated results for the query",
    },
  },
});

app.openapi(route, async (c) => {
  const query = c.req.query("query") ?? "";
  const page = Number(c.req.query("page") ?? 1);
  const limit = Number(c.req.query("limit") ?? 10);

  // Check if we should use mock data
  const { useMockData } = await import("~/libs/useMockData");
  if (useMockData()) {
    const { mockSearchResults } = await import("~/mocks");

    // Paginate mock results
    const startIndex = (page - 1) * limit;
    const endIndex = startIndex + limit;
    const paginatedResults = mockSearchResults.slice(startIndex, endIndex);
    const hasNextPage = endIndex < mockSearchResults.length;

    return c.json(
      {
        success: true,
        results: paginatedResults,
        hasNextPage,
      },
      200,
    );
  }

  const { result: response, errorOccurred } = await fetchFromMultipleSources([
    () => fetchSearchResultsFromAnilist(query, page, limit),
  ]);

  if (!response) {
    return c.json({
      success: !errorOccurred,
      results: [],
      hasNextPage: false,
    });
  }

  return c.json(
    {
      success: true,
      results: response.results,
      hasNextPage: response.hasNextPage ?? false,
    },
    200,
  );
});

export default app;