using FastEndpoints;
using Microsoft.EntityFrameworkCore;
using Socialize.Api.Data;
using Socialize.Api.Infrastructure.Security;
using Socialize.Api.Modules.ContentItems.Data;

namespace Socialize.Api.Modules.ContentItems.Handlers;

public record ContentItemDetailDto(
    Guid Id,
    Guid WorkspaceId,
    Guid ClientId,
    Guid CampaignId,
    string Title,
    string PublicationMessage,
    string PublicationTargets,
    string? Hashtags,
    string Status,
    DateTimeOffset? DueDate,
    string CurrentRevisionLabel,
    int CurrentRevisionNumber,
    DateTimeOffset CreatedAt);

public class GetContentItemHandler(
    AppDbContext dbContext,
    AccessScopeService accessScopeService)
    : EndpointWithoutRequest<ContentItemDetailDto>
{
    public override void Configure()
    {
        Get("/api/content-items/{id}");
        Options(o => o.WithTags("Content Items"));
    }

    public override async Task HandleAsync(CancellationToken ct)
    {
        Guid id = Route<Guid>("id");

        ContentItemDetailDto? item = await dbContext.ContentItems
            .Where(candidate => candidate.Id == id)
            .Select(candidate => new ContentItemDetailDto(
                candidate.Id,
                candidate.WorkspaceId,
                candidate.ClientId,
                candidate.CampaignId,
                candidate.Title,
                candidate.PublicationMessage,
                candidate.PublicationTargets,
                candidate.Hashtags,
                candidate.Status,
                candidate.DueDate,
                candidate.CurrentRevisionLabel,
                candidate.CurrentRevisionNumber,
                candidate.CreatedAt))
            .SingleOrDefaultAsync(ct);

        if (item is null)
        {
            await SendNotFoundAsync(ct);
            return;
        }

        if (!accessScopeService.CanReviewContent(User, item.WorkspaceId, item.ClientId, item.CampaignId))
        {
            await SendForbiddenAsync(ct);
            return;
        }

        await SendOkAsync(item, ct);
    }
}