using Distribution.Infra.Authorization;
using Distribution.Models;
using Microsoft.AspNetCore.Mvc;

namespace Distribution.Features.ShopPO;

[ApiController]
[Route("api/shop-pos")]
public class ShopPOController(ShopPOService service, ICurrentUserService currentUser) : ControllerBase
{
    [HttpGet]
    public async Task<IActionResult> GetAll(
        [FromQuery] Guid? agentId,
        [FromQuery] Guid? routeId,
        [FromQuery] Guid? regionId,
        [FromQuery] Guid? shopId,
        [FromQuery] bool? confirmed,
        [FromQuery] ShopPOStatus? status,
        [FromQuery] int page = 1,
        [FromQuery] int pageSize = 20)
    {
        var result = await service.GetAllAsync(agentId, routeId, regionId, shopId, confirmed, status, page, pageSize);
        return Ok(result);
    }

    [HttpGet("{id:guid}")]
    public async Task<IActionResult> GetById(Guid id)
    {
        var result = await service.GetByIdAsync(id);
        return result is null ? NotFound() : Ok(result);
    }

    [HttpGet("confirmed-without-invoice")]
    public async Task<IActionResult> GetConfirmedWithoutInvoice(
        [FromQuery] Guid? agentId,
        [FromQuery] Guid? routeId,
        [FromQuery] Guid? shopId)
    {
        var result = await service.GetConfirmedWithoutInvoiceAsync(agentId, routeId, shopId);
        return Ok(result);
    }

    [HttpPost]
    public async Task<IActionResult> Create(CreateShopPORequest request, CancellationToken ct)
    {
        // TEMPORARY: currentUser.UserId is always unset due to the broken auth middleware
        // (testbug.md #28) — fall back to the explicitly supplied user until that's fixed.
        var userId = currentUser.UserId ?? request.RaisedByUserId;
        if (userId is null) return BadRequest(new { error = "RaisedByUserId is required while auth is unavailable" });
        try
        {
            var result = await service.CreateAsync(request, userId.Value, ct);
            return CreatedAtAction(nameof(GetById), new { id = result.Id }, result);
        }
        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
    }

    [HttpPut("{id:guid}/items")]
    public async Task<IActionResult> UpdateItems(Guid id, UpdateShopPOItemsRequest request, CancellationToken ct)
    {
        try
        {
            var result = await service.UpdateItemsAsync(id, request, ct);
            return Ok(result);
        }
        catch (KeyNotFoundException) { return NotFound(); }
        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
    }

    [HttpPost("{id:guid}/confirm")]
    public async Task<IActionResult> Confirm(Guid id, ConfirmShopPORequest request, CancellationToken ct)
    {
        // TEMPORARY: currentUser.UserId is always unset due to the broken auth middleware
        // (testbug.md #28) — fall back to the explicitly supplied user until that's fixed.
        var userId = currentUser.UserId ?? request.ConfirmedByUserId;
        if (userId is null) return BadRequest(new { error = "ConfirmedByUserId is required while auth is unavailable" });
        try
        {
            var result = await service.ConfirmAsync(id, userId.Value, ct);
            return Ok(result);
        }
        catch (KeyNotFoundException) { return NotFound(); }
        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
    }

    [HttpPost("{id:guid}/confirm-and-create-invoice")]
    public async Task<IActionResult> ConfirmAndCreateInvoice(Guid id, ConfirmShopPORequest request, CancellationToken ct)
    {
        // TEMPORARY: currentUser.UserId is always unset due to the broken auth middleware
        // (testbug.md #28) — fall back to the explicitly supplied user until that's fixed.
        var userId = currentUser.UserId ?? request.ConfirmedByUserId;
        if (userId is null) return BadRequest(new { error = "ConfirmedByUserId is required while auth is unavailable" });
        try
        {
            var result = await service.ConfirmAndCreateInvoiceAsync(id, userId.Value, ct);
            return Ok(result);
        }
        catch (KeyNotFoundException) { return NotFound(); }
        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
    }

    [HttpPost("{id:guid}/cancel")]
    public async Task<IActionResult> Cancel(Guid id, CancelShopPORequest request, CancellationToken ct)
    {
        // TEMPORARY: currentUser.UserId is always unset due to the broken auth middleware
        // (testbug.md #28) — fall back to the explicitly supplied user until that's fixed.
        var userId = currentUser.UserId ?? request.CancelledByUserId;
        if (userId is null) return BadRequest(new { error = "CancelledByUserId is required while auth is unavailable" });
        try
        {
            var result = await service.CancelAsync(id, userId.Value, request.Reason, ct);
            return Ok(result);
        }
        catch (KeyNotFoundException) { return NotFound(); }
        catch (InvalidOperationException ex) { return BadRequest(new { error = ex.Message }); }
    }
}