"use client";

import { useState } from "react";
import { MangaGrid } from "@/components/manga-grid";
import { MangaPagination } from "@/components/manga-pagination";
import { FilterSidebar } from "@/components/filter-sidebar";
import { BookOpen, Search } from "lucide-react";
import { Input } from "@/components/ui/input";
import { ThemeToggle } from "@/components/theme-toggle";
import { useGetMangas } from "@/api/mangamochi";
import { AuthHeader } from "@/components/auth-header";
import { ImportDropdown } from "@/components/import-dropdown";
import { SortOption, SortOptions } from "@/components/sort-options";

const ITEMS_PER_PAGE = 12;

export default function HomePage() {
  const [currentPage, setCurrentPage] = useState(1);
  const [searchQuery, setSearchQuery] = useState("");
  const [selectedGenres, setSelectedGenres] = useState<number[]>([]);
  const [selectedStatus, setSelectedStatus] = useState<string[]>([]);
  const [minRating, setMinRating] = useState(0);
  const [userFavorites, setUserFavorites] = useState(false);
  const [showAdultContent, setShowAdultContent] = useState(false);
  const [sortOption, setSortOption] = useState<SortOption>("title-asc");

  const { data: mangas, queryKey } = useGetMangas({
    page: currentPage - 1,
    size: ITEMS_PER_PAGE,
    sort: ["id"],
    searchQuery: searchQuery,
    statuses: selectedStatus,
    genreIds: selectedGenres,
    userFavorites,
    score: minRating,
  });

  const totalPages = mangas?.data?.totalPages;

  return (
    <div className="flex min-h-screen bg-background">
      <FilterSidebar
        selectedGenres={selectedGenres}
        selectedStatus={selectedStatus}
        minRating={minRating}
        userFavorites={userFavorites}
        showAdultContent={showAdultContent}
        onGenresChange={setSelectedGenres}
        onStatusChange={setSelectedStatus}
        onRatingChange={setMinRating}
        onUserFavoritesChange={setUserFavorites}
        onShowAdultContentChange={setShowAdultContent}
      />

      {/* Main Content */}
      <div className="flex-1">
        {/* Header */}
        <header className="border-b border-border bg-background/95 backdrop-blur supports-[backdrop-filter]:bg-background/60">
          <div className="px-8 py-6">
            <div className="flex flex-col gap-6">
              <div className="flex items-center justify-between">
                <div className="flex items-start gap-3">
                  <BookOpen className="h-8 w-8 text-primary mt-1" />
                  <div>
                    <h1 className="text-3xl font-bold tracking-tight text-foreground">
                      MangaMochi
                    </h1>
                    <p className="mt-1 text-sm text-muted-foreground">
                      {mangas?.data?.totalElements} titles available
                    </p>
                  </div>
                </div>
                <div className="flex items-center gap-4">
                  <ImportDropdown />
                  <ThemeToggle />
                  <AuthHeader />
                </div>
              </div>

              {/* Search */}
              <div className="relative max-w-md">
                <Search className="absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-muted-foreground" />
                <Input
                  type="search"
                  placeholder="Search manga or author..."
                  value={searchQuery}
                  onChange={(e) => {
                    setSearchQuery(e.target.value);
                    setCurrentPage(1);
                  }}
                  className="pl-10 bg-card border-border"
                />
              </div>
            </div>
          </div>
        </header>

        <main className="px-8 py-8">
          {mangas?.data?.content && mangas.data.content.length > 0 ? (
            <>
              {mangas?.data?.totalElements && (
                <div className="mb-6 flex items-center justify-between">
                  <p className="text-sm text-muted-foreground">
                    Showing {(currentPage - 1) * ITEMS_PER_PAGE + 1} to{" "}
                    {Math.min(
                      currentPage * ITEMS_PER_PAGE,
                      mangas.data.totalElements,
                    )}{" "}
                    of {mangas.data.totalElements}
                  </p>
                  <SortOptions
                    currentSort={sortOption}
                    onSortChange={setSortOption}
                  />
                </div>
              )}
              <MangaGrid manga={mangas?.data?.content} queryKey={queryKey} />

              {totalPages && totalPages > 1 && (
                <div className="mt-12">
                  <MangaPagination
                    currentPage={currentPage}
                    totalPages={totalPages}
                    onPageChange={setCurrentPage}
                  />
                </div>
              )}
            </>
          ) : (
            <div className="flex min-h-[400px] items-center justify-center">
              <div className="text-center">
                <p className="text-lg text-muted-foreground">
                  No manga found matching your filters.
                </p>
                <p className="mt-2 text-sm text-muted-foreground">
                  Try adjusting your search or filter criteria.
                </p>
              </div>
            </div>
          )}
        </main>
      </div>
    </div>
  );
}