using Microsoft.EntityFrameworkCore;
using PowderCoating.Core.Entities;
using PowderCoating.Core.Enums;
using PowderCoating.Core.Interfaces.Repositories;
using PowderCoating.Infrastructure.Data;

namespace PowderCoating.Infrastructure.Repositories;

/// <summary>
/// Typed repository for <see cref="NotificationLog"/> that provides IgnoreQueryFilters-based
/// lookups by entity FK (InvoiceId, QuoteId, JobId).
/// </summary>
public class NotificationLogRepository : Repository<NotificationLog>, INotificationLogRepository
{
    public NotificationLogRepository(ApplicationDbContext context) : base(context) { }

    /// <inheritdoc/>
    public async Task<NotificationLog?> GetLatestForInvoiceAsync(int invoiceId) =>
        await _context.Set<NotificationLog>()
            .IgnoreQueryFilters()
            .Where(n => n.InvoiceId == invoiceId)
            .OrderByDescending(n => n.SentAt)
            .FirstOrDefaultAsync();

    /// <inheritdoc/>
    public async Task<List<NotificationLog>> GetAllForInvoiceAsync(int invoiceId) =>
        await _context.Set<NotificationLog>()
            .IgnoreQueryFilters()
            .Where(n => n.InvoiceId == invoiceId)
            .OrderByDescending(n => n.SentAt)
            .ToListAsync();

    /// <inheritdoc/>
    public async Task<NotificationLog?> GetLatestForQuoteAsync(int quoteId) =>
        await _context.Set<NotificationLog>()
            .IgnoreQueryFilters()
            .Where(n => n.QuoteId == quoteId)
            .OrderByDescending(n => n.SentAt)
            .FirstOrDefaultAsync();

    /// <inheritdoc/>
    public async Task<List<NotificationLog>> GetAllForQuoteAsync(int quoteId) =>
        await _context.Set<NotificationLog>()
            .IgnoreQueryFilters()
            .Where(n => n.QuoteId == quoteId)
            .OrderByDescending(n => n.SentAt)
            .ToListAsync();

    /// <inheritdoc/>
    public async Task<NotificationLog?> GetLatestForJobAsync(int jobId) =>
        await _context.Set<NotificationLog>()
            .IgnoreQueryFilters()
            .Where(n => n.JobId == jobId)
            .OrderByDescending(n => n.SentAt)
            .FirstOrDefaultAsync();

    /// <inheritdoc/>
    public async Task<List<NotificationLog>> GetAllForJobAsync(int jobId) =>
        await _context.Set<NotificationLog>()
            .IgnoreQueryFilters()
            .Where(n => n.JobId == jobId)
            .OrderByDescending(n => n.SentAt)
            .ToListAsync();

    /// <inheritdoc/>
    public async Task<(List<NotificationLog> Items, int TotalCount)> GetPagedFilteredAsync(
        int pageNumber, int pageSize,
        string? searchTerm = null,
        NotificationChannel? channel = null,
        NotificationStatus? status = null,
        NotificationType? type = null,
        int? jobId = null,
        string sortColumn = "SentAt",
        string sortDirection = "desc")
    {
        var query = _dbSet
            .AsNoTracking()
            .Include(n => n.Customer)
            .Include(n => n.Job)
            .Include(n => n.Quote)
            .AsQueryable();

        if (jobId.HasValue)
            query = query.Where(n => n.JobId == jobId.Value);

        if (!string.IsNullOrWhiteSpace(searchTerm))
        {
            var s = searchTerm.ToLower();
            query = query.Where(n =>
                n.RecipientName.ToLower().Contains(s) ||
                n.Recipient.ToLower().Contains(s) ||
                (n.Subject != null && n.Subject.ToLower().Contains(s)) ||
                (n.Job != null && n.Job.JobNumber.ToLower().Contains(s)) ||
                (n.Quote != null && n.Quote.QuoteNumber.ToLower().Contains(s)));
        }

        if (channel.HasValue)
            query = query.Where(n => n.Channel == channel.Value);

        if (status.HasValue)
            query = query.Where(n => n.Status == status.Value);

        if (type.HasValue)
            query = query.Where(n => n.NotificationType == type.Value);

        var totalCount = await query.CountAsync();

        query = (sortColumn, sortDirection) switch
        {
            ("RecipientName", "asc") => query.OrderBy(n => n.RecipientName),
            ("RecipientName", _)     => query.OrderByDescending(n => n.RecipientName),
            ("Channel",       "asc") => query.OrderBy(n => n.Channel),
            ("Channel",       _)     => query.OrderByDescending(n => n.Channel),
            ("Status",        "asc") => query.OrderBy(n => n.Status),
            ("Status",        _)     => query.OrderByDescending(n => n.Status),
            ("Type",          "asc") => query.OrderBy(n => n.NotificationType),
            ("Type",          _)     => query.OrderByDescending(n => n.NotificationType),
            (_,               "asc") => query.OrderBy(n => n.SentAt),
            _                        => query.OrderByDescending(n => n.SentAt)
        };

        var items = await query
            .Skip((pageNumber - 1) * pageSize)
            .Take(pageSize)
            .ToListAsync();

        return (items, totalCount);
    }
}