using MangaReader.Core.HttpService;
using System.Text.Json;

namespace MangaReader.Core.WebSearch;

public abstract class MangaWebSearchBase<T>(IHttpService httpService) : IMangaWebSearch<T>
{
    private static JsonSerializerOptions _jsonSerializerOptions = new()
    {
        PropertyNameCaseInsensitive = true
    };

    public async Task<MangaSearchResult[]> SearchAsync(string keyword)
    {
        T? searchResult = await GetSearchResultAsync(keyword);

        if (searchResult == null)
            return [];

        return GetSearchResult(searchResult);
    }

    private async Task<T?> GetSearchResultAsync(string keyword)
    {
        string url = GetSearchUrl(keyword);
        string response = await httpService.GetStringAsync(url);

        return JsonSerializer.Deserialize<T>(response, _jsonSerializerOptions);
    }

    protected abstract string GetSearchUrl(string keyword);
    protected abstract MangaSearchResult[] GetSearchResult(T searchResult);
}