using Microsoft.EntityFrameworkCore;
using mws.backend.dotnet.application.Common;
using mws.backend.dotnet.application.Common.Repositories;
using mws.backend.dotnet.application.Users;
using mws.backend.dotnet.domain.Users;

namespace mws.backend.dotnet.infrastructure.Persistence.Repositories;

public class UserRepository(AppDbContext db) : RepositoryBase<User>(db), IUserRepository
{
    public Task<User?> GetByIdAsync(Guid id, CancellationToken ct = default) =>
        Set.FirstOrDefaultAsync(u => u.Id == id, ct);

    public Task<User?> GetByIdWithRoleAsync(Guid id, CancellationToken ct = default) =>
        Set.Include(u => u.UserRoles).ThenInclude(ur => ur.Role).FirstOrDefaultAsync(u => u.Id == id, ct);

    public Task<User?> GetByUsernameWithRoleAsync(string username, CancellationToken ct = default) =>
        Set.Include(u => u.UserRoles).ThenInclude(ur => ur.Role).SingleOrDefaultAsync(u => u.Username == username, ct);

    public Task<bool> ExistsByUsernameAsync(string username, CancellationToken ct = default) =>
        Set.AnyAsync(u => u.Username == username, ct);

    public Task<bool> ExistsByRoleIdAsync(Guid roleId, CancellationToken ct = default) =>
        Db.UserRoles.AnyAsync(ur => ur.RoleId == roleId, ct);

    public Task<List<Guid>> GetRoleIdsAsync(Guid userId, CancellationToken ct = default) =>
        Db.UserRoles.Where(ur => ur.UserId == userId).Select(ur => ur.RoleId).ToListAsync(ct);

    public Task<List<User>> SearchWithRoleAsync(string? term, int? take, CancellationToken ct = default)
    {
        var query = Set.Include(u => u.UserRoles).ThenInclude(ur => ur.Role).AsQueryable();
        if (!string.IsNullOrWhiteSpace(term))
        {
            var lower = term.Trim().ToLower();
            query = query.Where(u => u.Username.ToLower().Contains(lower) || u.DisplayName.ToLower().Contains(lower));
        }

        query = query.OrderBy(u => u.DisplayName);
        if (take is { } n)
        {
            query = query.Take(n);
        }

        return query.ToListAsync(ct);
    }

    public Task<PagedResult<User>> SearchWithRolePagedAsync(UserListFilter filter, int page, int pageSize, CancellationToken ct = default)
    {
        var query = Set.Include(u => u.UserRoles).ThenInclude(ur => ur.Role).AsQueryable();
        if (!string.IsNullOrWhiteSpace(filter.Term))
        {
            var lower = filter.Term.Trim().ToLower();
            query = query.Where(u => u.Username.ToLower().Contains(lower) || u.DisplayName.ToLower().Contains(lower));
        }

        if (filter.IsActive is { } active)
        {
            query = query.Where(u => u.IsActive == active);
        }

        return query.OrderBy(u => u.DisplayName).ToPagedResultAsync(page, pageSize, ct);
    }
}