using Quartz;
using eprintServer.Data;
using eprintServer.Enums;
using eprintServer.Entities;
using Microsoft.EntityFrameworkCore;

namespace eprintServer.Services;

public class ReportSchedulerJob : IJob
{
    private readonly IServiceProvider _serviceProvider;

    public ReportSchedulerJob(IServiceProvider serviceProvider)
    {
        _serviceProvider = serviceProvider;
    }

    public async Task Execute(IJobExecutionContext context)
    {
        // 1. Get the report type from the Quartz job data map
        var reportTypeStr = context.MergedJobDataMap.GetString("ReportType");
        if (!Enum.TryParse<ReportDateEum>(reportTypeStr, out var reportType)) return;

        using (var scope = _serviceProvider.CreateScope())
        {

            var reportSettingsService = scope.ServiceProvider.GetRequiredService<ReportSettingsService>();
            var statsService = scope.ServiceProvider.GetRequiredService<StatsService>();
            var logger = scope.ServiceProvider.GetRequiredService<ILogger<ReportSchedulerJob>>();

        
            var settings = await reportSettingsService.GetOrInitializeSettingsAsync();

            // 3. Check if the specific report toggle is enabled
            bool isEnabled = reportType switch
            {
                ReportDateEum.DAILY => settings.DailyReports,
                ReportDateEum.WEEKLY => settings.WeeklyReports,
                ReportDateEum.MONTHLY => settings.MonthlyReports,
                ReportDateEum.YEARLY => settings.YearlyReports,
                _ => false
            };

            if (!isEnabled)
            {
                logger.LogInformation($"{reportType} reports are disabled in Admin Settings. Skipping.");
                return;
            }

            // 4. Validate the email list
            if (settings.AdminEmailList == null || !settings.AdminEmailList.Any())
            {
                logger.LogWarning($"The Admin Email List is empty. No {reportType} reports sent.");
                return;
            }

            // 5. Loop through the list from settings and send
            foreach (var email in settings.AdminEmailList)
            {
                try 
                {
                    await statsService.ProcessAndSendReport(reportType, email);
                    logger.LogInformation($"Successfully sent {reportType} report to {email}");
                }
                catch (Exception ex)
                {
                    logger.LogError(ex, $"Failed to send {reportType} report to {email}");
                }
            }
        }
    }
}