using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using SeaHaven.Services.DTOs;
using SeaHaven.Services.Interfaces;

namespace Api.SeaHavenIndustries.Controllers
{
    [Authorize]
    [ApiController]
    [Route("api/[controller]")]
    public class DashboardController : Controller
    {
        private readonly IDashboardService _dashboardService;

        public DashboardController(IDashboardService dashboardService)
        {
            _dashboardService = dashboardService;
        }

        [HttpGet("Stats")]
        public async Task<IActionResult> GetStats(
            [FromQuery] DashboardStatsQueryDTO query,
            CancellationToken cancellationToken)
        {
            var stats = await _dashboardService.GetStatsAsync(User, query, cancellationToken);

            return Ok(new
            {
                total = stats.Total,
                open = stats.Open,
                notDispatched = stats.NotDispatched,
                completed = stats.Completed,
                scheduledTomorrow = stats.ScheduledTomorrow,
                pendingUplifts = stats.PendingUplifts,
                avetaPending = stats.AvetaPending,
                unassigned = stats.Unassigned,
                breakdown = stats.Breakdown,
                dueCount = stats.DueCount,
                completedDueCount = stats.CompletedDueCount,
                completionRate = stats.CompletionRate,
                averageResolutionDays = stats.AverageResolutionDays,
                statusDistribution = stats.StatusDistribution
            });
        }

        [HttpGet("Workload")]
        public async Task<IActionResult> GetWorkload(
            [FromQuery] DashboardStatsQueryDTO query,
            [FromQuery] int page = 1,
            CancellationToken cancellationToken = default)
        {
            try
            {
                return Ok(await _dashboardService.GetWorkloadAsync(
                    User, query, page, cancellationToken));
            }
            catch (SeaHaven.Services.Exceptions.WorkOrderBoardValidationException ex)
                when (ex.Code == "Forbidden")
            {
                return StatusCode(StatusCodes.Status403Forbidden, new
                {
                    code = ex.Code,
                    message = ex.Message
                });
            }
            catch (ArgumentOutOfRangeException ex)
            {
                return BadRequest(ex.Message);
            }
        }

        [HttpGet("Performance")]
        public async Task<IActionResult> GetPerformance(
            [FromQuery] DashboardStatsQueryDTO query,
            [FromQuery] int page = 1,
            CancellationToken cancellationToken = default)
        {
            try
            {
                return Ok(await _dashboardService.GetPerformanceAsync(
                    User, query, page, cancellationToken));
            }
            catch (SeaHaven.Services.Exceptions.WorkOrderBoardValidationException ex)
                when (ex.Code == "Forbidden")
            {
                return StatusCode(StatusCodes.Status403Forbidden, new
                {
                    code = ex.Code,
                    message = ex.Message
                });
            }
            catch (ArgumentOutOfRangeException ex)
            {
                return BadRequest(ex.Message);
            }
        }

        [HttpGet("Regions")]
        public async Task<IActionResult> GetRegions(
            [FromQuery] DashboardStatsQueryDTO query,
            CancellationToken cancellationToken = default)
        {
            try
            {
                return Ok(await _dashboardService.GetRegionsAsync(User, query, cancellationToken));
            }
            catch (SeaHaven.Services.Exceptions.WorkOrderBoardValidationException ex)
                when (ex.Code == "Forbidden")
            {
                return StatusCode(StatusCodes.Status403Forbidden, new
                {
                    code = ex.Code,
                    message = ex.Message
                });
            }
        }

        [HttpGet("Trend")]
        public async Task<IActionResult> GetTrend(
            [FromQuery] DashboardTrendQueryDTO query,
            CancellationToken cancellationToken = default)
        {
            try
            {
                var trend = await _dashboardService.GetTrendAsync(User, query, cancellationToken);

                return Ok(new
                {
                    granularity = trend.Granularity,
                    today = trend.Today,
                    buckets = trend.Buckets.Select(bucket => new
                    {
                        date = bucket.Date,
                        label = bucket.Label,
                        total = bucket.Total,
                        open = bucket.Open,
                        completed = bucket.Completed,
                        canceled = bucket.Canceled,
                        overdue = bucket.Overdue,
                        isCurrent = bucket.IsCurrent
                    })
                });
            }
            catch (SeaHaven.Services.Exceptions.WorkOrderBoardValidationException ex)
                when (ex.Code == "Forbidden")
            {
                return StatusCode(StatusCodes.Status403Forbidden, new
                {
                    code = ex.Code,
                    message = ex.Message
                });
            }
            catch (ArgumentOutOfRangeException ex)
            {
                return BadRequest(ex.Message);
            }
        }

        [HttpGet("VendorInsights")]
        public async Task<IActionResult> GetVendorInsights(CancellationToken cancellationToken = default)
        {
            try
            {
                return Ok(await _dashboardService.GetVendorInsightsAsync(User, cancellationToken));
            }
            catch (SeaHaven.Services.Exceptions.WorkOrderBoardValidationException ex)
                when (ex.Code == "Forbidden")
            {
                return StatusCode(StatusCodes.Status403Forbidden, new
                {
                    code = ex.Code,
                    message = ex.Message
                });
            }
        }
    }
}