using CMSMicroservice.Application.Common.Interfaces;
using CMSMicroservice.Domain.Entities;
using Mapster;

namespace CMSMicroservice.Application.PackageCQ.Queries.GetCustomerPackages;

public class GetCustomerPackagesQueryHandler : IRequestHandler<GetCustomerPackagesQuery, List<GetCustomerPackagesResponseDto>>
{
    private readonly IApplicationDbContext _context;

    public GetCustomerPackagesQueryHandler(IApplicationDbContext context)
    {
        _context = context;
    }

    public async Task<List<GetCustomerPackagesResponseDto>> Handle(GetCustomerPackagesQuery request, CancellationToken cancellationToken)
    {
        var query = _context.Packages
            .AsNoTracking()
            .AsQueryable();

        // Filter by PackageType if specified
        if (request.PackageTypeFilter.HasValue)
        {
            // Note: Package entity doesn't have PackageType enum, so we filter by convention
            // Assuming Title or Description contains the package type indicator
            // If Package entity needs PackageType field, it should be added to migration
        }

        // Get all packages (assuming all are available unless marked otherwise)
        var packages = await query
            .ProjectToType<GetCustomerPackagesResponseDto>()
            .ToListAsync(cancellationToken);

        // Map additional fields
        foreach (var package in packages)
        {
            package.Name = package.Title;
            package.ImageUrl = package.ImagePath;
            package.Currency = "IRR";
            package.IsAvailable = true;
            package.ValidityDays = 365; // Default validity
            package.IsPopular = false;
            package.ShortDescription = package.Description?.Length > 100 
                ? package.Description.Substring(0, 100) + "..." 
                : package.Description;
        }

        return packages;
    }
}