using CPRNIMS.Domain.Contracts.Reports;
using CPRNIMS.Domain.UIContracts.Common;
using CPRNIMS.Infrastructure.Dto.Inventory.Reports;
using CPRNIMS.Infrastructure.Helper;
using FastReport;
using Microsoft.Extensions.Configuration;
using System.Data;
using System.Net.Http.Json;
using System.Text.Json;

namespace CPRNIMS.Infrastructure.Reports
{
    public class ReportBuilder : IReportBuilder
    {
        private readonly IConfiguration _configuration;
        private readonly TokenHelper _tokenHelper;
        private readonly IApiConfigurationService _apiConfigurationService;
        public ReportBuilder(IConfiguration configuration, TokenHelper tokenHelper,
            IApiConfigurationService apiConfigurationService)
        {
            _configuration = configuration;
            _tokenHelper = tokenHelper;
            _apiConfigurationService = apiConfigurationService;
        }

        private static readonly JsonSerializerOptions _jsonOptions = new()
        {
            PropertyNameCaseInsensitive = true
        };
        public Task<Report> MRSBuildAsync(DateTime dateFrom, DateTime dateTo, string templatePath, CancellationToken ct)
        {
            throw new NotImplementedException();
        }

        public async Task<Report> RISBuildAsync(
        DateTime dateFrom, DateTime dateTo, string templatePath, CancellationToken ct = default)
        {
            var token = await _tokenHelper.GetValidTokenAsync();
            if (string.IsNullOrEmpty(token))
                throw new InvalidOperationException("Token has been expired.");

            var endpoint = _configuration["LLI:NonInvent:InventoryMgmt:RISReportData"]
                ?? throw new InvalidOperationException("RISReportData endpoint is not configured.");

            // Append the date range as query string
            var url = $"{endpoint}?dateFrom={dateFrom:yyyy-MM-dd}&dateTo={dateTo:yyyy-MM-dd}";

            using var httpClient = _apiConfigurationService.CreateHttpClientWithDefaultHeaders(token);
            var response = await httpClient.GetAsync(url, ct);
            var json = await response.Content.ReadAsStringAsync(ct);

            if (!response.IsSuccessStatusCode)
                throw new InvalidOperationException(
                    $"Failed to fetch RIS report data. HTTP {(int)response.StatusCode}: {json}");

            var dto = JsonSerializer.Deserialize<RISReportDataDto>(json, _jsonOptions)
                      ?? new RISReportDataDto();

            var report = new Report();
            report.Load(templatePath);

            // RegisterData accepts IEnumerable<object> — names must match the .frx datasources.
            report.RegisterData(dto.Rows ?? new(), "TRIS");
            report.RegisterData(dto.Disciplines ?? new(), "TDisciplineAgg");
            report.RegisterData(dto.Recipients ?? new(), "TTopRecipients");

            /*      report.GetDataSource("Table").Enabled = true;
                  report.GetDataSource("Table1").Enabled = true;
                  report.GetDataSource("Table3").Enabled = true;*/
            report.GetDataSource("TRIS").Enabled = true;
            report.GetDataSource("TDisciplineAgg").Enabled = true;
            report.GetDataSource("TTopRecipients").Enabled = true;

            report.SetParameterValue("DateFrom", dateFrom);
            report.SetParameterValue("DateTo", dateTo);

            return report;
        }
    }
}