using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.SignalR;
using ROLAC.API.DTOs.Giving;
using ROLAC.API.Hubs;
using ROLAC.API.Services;

namespace ROLAC.API.Controllers;

/// <summary>
/// Anonymous endpoints powering the mobile Sunday offering-entry page. The page
/// has no login yet, so it cannot reach the auth-gated members/categories/
/// offering-sessions APIs — these expose just what it needs (active categories,
/// a name-only member typeahead, and append-one-line).
/// </summary>
[ApiController]
[Route("api/offering-entry")]
[AllowAnonymous]
public class OfferingEntryController : ControllerBase
{
    private readonly IOfferingSessionService       _sessions;
    private readonly IGivingCategoryService         _categories;
    private readonly IHubContext<OfferingEntryHub>  _hub;

    public OfferingEntryController(
        IOfferingSessionService sessions,
        IGivingCategoryService categories,
        IHubContext<OfferingEntryHub> hub)
    {
        _sessions   = sessions;
        _categories = categories;
        _hub        = hub;
    }

    // Seed the page in one round-trip: active categories + today's session state.
    [HttpGet("bootstrap")]
    public async Task<IActionResult> Bootstrap([FromQuery] DateOnly date)
        => Ok(new OfferingEntryBootstrapDto
        {
            SessionDate = date.ToString("yyyy-MM-dd"),
            Categories  = await _categories.GetAllAsync(false),
            Summary     = await _sessions.GetEntrySummaryAsync(date),
        });

    // Name-only member suggestions for the giver typeahead.
    [HttpGet("members")]
    public async Task<IActionResult> SearchMembers([FromQuery] string? search, [FromQuery] int take = 10)
        => Ok(await _sessions.SearchMembersForEntryAsync(search, Math.Clamp(take, 1, 25)));

    // Append one offering line to the date's session (find-or-create), then
    // broadcast it to everyone viewing that date.
    [HttpPost("lines")]
    public async Task<IActionResult> AppendLine([FromBody] AppendOfferingLineRequest request)
    {
        var result = await _sessions.AppendLineAsync(request.Date, request.Line);
        await _hub.Clients.Group(result.SessionDate).SendAsync("LineAdded", result);
        return Ok(result);
    }
}