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

namespace eprintServer.Services;

public class ReportSettingsService
{
    private readonly DataContext _context;

    public ReportSettingsService(DataContext context)
    {
        _context = context;
    }

    public async Task<ReportSettings> GetOrInitializeSettingsAsync()
    {
        var settings = await _context.ReportSettings.FirstOrDefaultAsync();

        if (settings == null)
        {
            // Get default admin emails
            var adminEmails = await _context.Users
                .Where(u => u.Role == RoleEnum.ROLE_ADMIN && !u.Deleted && u.Active)
                .Select(u => u.Email)
                .ToListAsync();

            settings = new ReportSettings
            {
                AdminEmailList = adminEmails,
                DailyReports = true,
                WeeklyReports = true,
                MonthlyReports = true,
                YearlyReports = true
            };

            _context.ReportSettings.Add(settings);
            await _context.SaveChangesAsync();
        }

        return settings;
    }

    public async Task<ReportSettings> UpdateSettingsAsync(ReportSettings updateReq)
    {
        var existing = await GetOrInitializeSettingsAsync();

        existing.DailyReports = updateReq.DailyReports;
        existing.WeeklyReports = updateReq.WeeklyReports;
        existing.MonthlyReports = updateReq.MonthlyReports;
        existing.YearlyReports = updateReq.YearlyReports;

        // Look at the list inside the updateReq object
        if (updateReq.AdminEmailList != null)
        {
            // Clear and replace with the new values from the JSON body
            existing.AdminEmailList = new List<string>(updateReq.AdminEmailList);
        }

        await _context.SaveChangesAsync();
        return existing;
    }
}