using Fitness_core_BE.DTOs.PlatformBilling;
using Fitness_core_BE.Helpers;
using Fitness_core_BE.Interfaces.Services;
using Fitness_core_BE.Models.IOs;
using Microsoft.AspNetCore.Mvc;
using static Fitness_core_BE.Helpers.JwtMiddleware;
using static Fitness_core_BE.Helpers.ApiResponseHelper;

namespace Fitness_core_BE.Controllers
{
    // Platform billing (HexaFitness -> gym): pricing configuration and invoicing.
    // The gym-owner side of this same concern lives in ClientInvoiceController.
    [ApiController]
    [Route("api/admin")]
    [CustomMiddleware]
    [TenantResolution]
    public class AdminBillingController : ControllerBase
    {
        private readonly IPlatformBillingService _platformBilling;

        public AdminBillingController(IPlatformBillingService platformBilling)
        {
            _platformBilling = platformBilling;
        }

        [HttpGet("pricing-plans")]
        public async Task<ActionResult<ApiResponse<List<PricingPlanDto>>>> ListPricingPlans()
        {
            return Response(await _platformBilling.GetPricingPlansAsync(HttpContext.RequestAborted));
        }

        [HttpPut("pricing-plans")]
        public async Task<ActionResult<ApiResponse<PricingPlanDto>>> UpsertPricingPlan([FromBody] UpsertPricingPlanRequest request)
        {
            return Response(await _platformBilling.UpsertPricingPlanAsync(request, HttpContext.RequestAborted));
        }

        [HttpGet("device-pricing")]
        public async Task<ActionResult<ApiResponse<DevicePricingDto>>> GetDevicePricing()
        {
            return Response(await _platformBilling.GetDevicePricingAsync(HttpContext.RequestAborted));
        }

        [HttpPut("device-pricing")]
        public async Task<ActionResult<ApiResponse<DevicePricingDto>>> UpdateDevicePricing([FromBody] DevicePricingDto request)
        {
            return Response(await _platformBilling.UpdateDevicePricingAsync(request, HttpContext.RequestAborted));
        }

        [HttpPost("clients/{id:guid}/pricing-plan")]
        public async Task<ActionResult<ApiResponse<object>>> AssignPricingPlan(Guid id, [FromBody] AssignPricingPlanRequest request)
        {
            var invoice = await _platformBilling.AssignPricingPlanAsync(id, request, HttpContext.RequestAborted);
            return Response<object>(new { assigned = true, clientInvoiceId = invoice.ClientInvoiceId, amount = invoice.Amount });
        }

        [HttpGet("clients/{id:guid}/platform-fee")]
        public async Task<ActionResult<ApiResponse<PlatformFeeBreakdownDto>>> GetPlatformFee(Guid id)
        {
            return Response(await _platformBilling.ComputeMonthlyFeeAsync(id, HttpContext.RequestAborted));
        }

        [HttpGet("invoices/pending")]
        public async Task<ActionResult<ApiResponse<List<PendingPlatformInvoiceDto>>>> ListPendingInvoices()
        {
            return Response(await _platformBilling.GetPendingInvoicesAsync(HttpContext.RequestAborted));
        }

        [HttpGet("invoices/completed")]
        public async Task<ActionResult<ApiResponse<List<PendingPlatformInvoiceDto>>>> ListCompletedInvoices()
        {
            return Response(await _platformBilling.GetCompletedInvoicesAsync(HttpContext.RequestAborted));
        }

        [HttpPost("invoices/{id:guid}/payments")]
        public async Task<ActionResult<ApiResponse<PendingPlatformInvoiceDto>>> RecordInvoicePayment(Guid id, [FromBody] RecordClientInvoicePaymentRequest request)
        {
            return Response(await _platformBilling.RecordClientInvoicePaymentAsync(id, request.Amount, HttpContext.RequestAborted));
        }

        [HttpPost("invoices/{id:guid}/send-payment-link")]
        public async Task<ActionResult<ApiResponse<object>>> SendInvoicePaymentLink(Guid id)
        {
            return Response(await _platformBilling.SendClientPaymentLinkAsync(id, HttpContext.RequestAborted));
        }

        [HttpPost("billing/run-monthly")]
        public async Task<ActionResult<ApiResponse<object>>> RunMonthlyBilling()
        {
            var invoices = await _platformBilling.RunMonthlyBillingForAllClientsAsync(HttpContext.RequestAborted);
            return Response<object>(new { generated = invoices.Count });
        }
    }
}