import { Injectable } from '@nestjs/common';
import { CatalogItemDto } from './dto/catalog-item.dto';
import { CatalogParamsDto } from './dto/catalog-params.dto';
import { CatalogResponseDto } from './dto/catalog-response.dto';
import { MainPageCatalogResponseDto } from './dto/main-page-catalog-response.dto';

@Injectable()
export class CatalogService {
  private catalogItems: CatalogItemDto[] = [
    {
      id: 1,
      name: 'Azimut 55',
      length: 16.7,
      speed: 32,
      minCost: 85000,
      mainImageUrl: '/api/uploads/1765727362318-238005198.jpg',
      galleryUrls: [
        '/api/uploads/1765727362318-238005198.jpg',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: true,
    },
    {
      id: 2,
      name: 'Sunseeker Manhattan 52',
      length: 15.8,
      speed: 34,
      minCost: 92000,
      mainImageUrl: '/api/uploads/1765728068963-634185622.webp',
      galleryUrls: [
        '/api/uploads/1765728068963-634185622.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: false,
      isFeatured: false,
      topText: '🔥 Лучшее предложение',
    },
    {
      id: 3,
      name: 'Princess V55',
      length: 16.7,
      speed: 33,
      minCost: 78000,
      mainImageUrl: '/api/uploads/1765728152179-305707681.webp',
      galleryUrls: [
        '/api/uploads/1765728152179-305707681.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: false,
      topText: '🍷 Идеальна для заката с бокалом вина',
    },
    {
      id: 4,
      name: 'Ferretti 500',
      length: 15.2,
      speed: 31,
      minCost: 68000,
      mainImageUrl: '/api/uploads/1765728169750-667674217.webp',
      galleryUrls: [
        '/api/uploads/1765728169750-667674217.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: false,
      topText: '⏳ Часто бронируется - успей',
    },
    {
      id: 5,
      name: 'Sea Ray 510 Sundancer',
      length: 15.5,
      speed: 35,
      minCost: 72000,
      mainImageUrl: '/api/uploads/1765728190017-763752836.webp',
      galleryUrls: [
        '/api/uploads/1765728190017-763752836.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: false,
      isFeatured: false,
    },
    {
      id: 6,
      name: 'Bavaria SR41',
      length: 12.5,
      speed: 28,
      minCost: 45000,
      mainImageUrl: '/api/uploads/1765728208376-854378188.webp',
      galleryUrls: [
        '/api/uploads/1765728208376-854378188.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: false,
    },
    {
      id: 7,
      name: 'Jeanneau Merry Fisher 895',
      length: 8.9,
      speed: 25,
      minCost: 32000,
      mainImageUrl: '/api/uploads/1765728227998-695635756.webp',
      galleryUrls: [
        '/api/uploads/1765728227998-695635756.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: false,
    },
    {
      id: 8,
      name: 'Beneteau Swift Trawler 41',
      length: 12.5,
      speed: 22,
      minCost: 55000,
      mainImageUrl: '/api/uploads/1765728068963-634185622.webp',
      galleryUrls: [
        '/api/uploads/1765728068963-634185622.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: false,
      isFeatured: false,
    },
    {
      id: 9,
      name: 'Lagoon 450',
      length: 13.5,
      speed: 20,
      minCost: 65000,
      mainImageUrl: '/api/uploads/1765728152179-305707681.webp',
      galleryUrls: [
        '/api/uploads/1765728152179-305707681.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: false,
    },
    {
      id: 10,
      name: 'Fountaine Pajot Lucia 40',
      length: 11.7,
      speed: 18,
      minCost: 58000,
      mainImageUrl: '/api/uploads/1765728169750-667674217.webp',
      galleryUrls: [
        '/api/uploads/1765728169750-667674217.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: false,
    },
    {
      id: 11,
      name: 'Dufour 460',
      length: 14.1,
      speed: 26,
      minCost: 62000,
      mainImageUrl: '/api/uploads/1765728190017-763752836.webp',
      galleryUrls: [
        '/api/uploads/1765728190017-763752836.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: false,
      isFeatured: false,
    },
    {
      id: 12,
      name: 'Grand Banks 60',
      length: 18.3,
      speed: 24,
      minCost: 125000,
      mainImageUrl: '/api/uploads/1765728208376-854378188.webp',
      galleryUrls: [
        '/api/uploads/1765728208376-854378188.webp',
        '/api/uploads/1765727637471-474231444.webp',
        '/api/uploads/1765727743466-187581713.webp',
        '/api/uploads/1765727819793-158598111.webp',
        '/api/uploads/1765727903961-559930753.webp',
        '/api/uploads/1765727928577-55944164.webp',
        '/api/uploads/1765727948691-389175954.webp',
        '/api/uploads/1765727961591-243584836.webp',
        '/api/uploads/1765727992064-37229339.webp',
      ],
      hasQuickRent: true,
      isFeatured: false,
    },
  ];

  async getMainPageCatalog(): Promise<MainPageCatalogResponseDto | null> {
    const clonedCatalog = [...this.catalogItems];
    const filteredCatalog = clonedCatalog.filter(
      ({ isFeatured }) => !isFeatured,
    );

    const featuredYacthIndex = clonedCatalog.findIndex(
      (item) => item.isFeatured === true,
    );

    if (featuredYacthIndex !== -1) {
      return {
        featuredYacht: clonedCatalog[featuredYacthIndex],
        restYachts: filteredCatalog.slice(0, 6),
      };
    }

    return null;
  }

  async getCatalog(params?: CatalogParamsDto): Promise<CatalogResponseDto> {
    let filteredItems = [...this.catalogItems];

    if (params?.search) {
      const searchTerm = params.search.toLowerCase();

      filteredItems = filteredItems.filter((item) =>
        item.name.toLowerCase().includes(searchTerm),
      );
    }

    if (params?.filter?.price) {
      const { minvalue, maxvalue } = params.filter.price;

      filteredItems = filteredItems.filter((item) => {
        if (minvalue !== undefined && item.minCost < minvalue) return false;
        if (maxvalue !== undefined && item.minCost > maxvalue) return false;
        return true;
      });
    }

    if (params?.sort?.field) {
      const { field, direction = 'asc' } = params.sort;

      filteredItems.sort((a, b) => {
        let valueA = a[field];
        let valueB = b[field];

        if (typeof valueA === 'string') valueA = valueA.toLowerCase();
        if (typeof valueB === 'string') valueB = valueB.toLowerCase();

        if (valueA < valueB) return direction === 'asc' ? -1 : 1;
        if (valueA > valueB) return direction === 'asc' ? 1 : -1;

        return 0;
      });
    }

    return {
      items: filteredItems,
      total: filteredItems.length,
      filters: params?.filter,
      sort: params?.sort,
      search: params?.search,
    };
  }

  async getAllCatalogItems(): Promise<CatalogItemDto[]> {
    return this.catalogItems;
  }
}