using Sanhe.Abp.LocalizationManagement.Permissions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Volo.Abp.Application.Dtos;
using Volo.Abp.Application.Services;

namespace Sanhe.Abp.LocalizationManagement;

public class LanguageAppService : CrudAppService<
    Language,
    LanguageDto,
    Guid,
    GetLanguagesInput,
    CreateOrUpdateLanguageInput,
    CreateOrUpdateLanguageInput>, ILanguageAppService
{
    public LanguageAppService(ILanguageRepository repository) : base(repository)
    {
        GetPolicyName = LocalizationManagementPermissions.Language.Default;
        GetListPolicyName = LocalizationManagementPermissions.Language.Default;
        CreatePolicyName = LocalizationManagementPermissions.Language.Create;
        UpdatePolicyName = LocalizationManagementPermissions.Language.Update;
        DeletePolicyName = LocalizationManagementPermissions.Language.Delete;
    }

    public async virtual Task<ListResultDto<LanguageDto>> GetAllAsync()
    {
        await CheckGetListPolicyAsync();

        var languages = await Repository.GetListAsync();

        return new ListResultDto<LanguageDto>(
            ObjectMapper.Map<List<Language>, List<LanguageDto>>(languages));
    }

    protected override Language MapToEntity(CreateOrUpdateLanguageInput createInput)
    {
        return new Language(
            createInput.CultureName,
            createInput.UiCultureName,
            createInput.DisplayName,
            createInput.FlagIcon)
        {
            Enable = createInput.Enable
        };
    }

    protected override void MapToEntity(CreateOrUpdateLanguageInput updateInput, Language entity)
    {
        if (!string.Equals(entity.FlagIcon, updateInput.FlagIcon, StringComparison.InvariantCultureIgnoreCase))
        {
            entity.FlagIcon = updateInput.FlagIcon;
        }
        entity.ChangeCulture(updateInput.CultureName, updateInput.UiCultureName, updateInput.DisplayName);
        entity.Enable = updateInput.Enable;
    }

    protected async override Task<IQueryable<Language>> CreateFilteredQueryAsync(GetLanguagesInput input)
    {
        var query = await base.CreateFilteredQueryAsync(input);

        query = query.WhereIf(!input.Filter.IsNullOrWhiteSpace(),
            x => x.CultureName.Contains(input.Filter) || x.UiCultureName.Contains(input.Filter) ||
                 x.DisplayName.Contains(input.Filter));

        return query;
    }
}