using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.Extensions.Logging;
using Schaad.Accounting.Interfaces;
using Schaad.Accounting.Models;

namespace Schaad.Accounting.Repositories
{
    public class BookingRuleRepository : BaseRepository, IBookingRuleRepository
    {
        private readonly string BOOKING_RULES = "BookingRules.xml";

        public BookingRuleRepository(ISettingsService settingsService, RepositoryCache cache, ILogger<BookingRuleRepository> logger)
            : base(settingsService, cache, logger)
        {
            EnsureFileExists(BOOKING_RULES);
        }

        public Task<List<BookingRule>> GetBookingRuleListAsync() => LoadListAsync<BookingRule>(BOOKING_RULES);

        public async Task SaveBookingRuleAsync(BookingRule bookingRule)
        {
            var bookingRules = await GetBookingRuleListAsync();
            var idx = bookingRules.FindIndex(r => r.Id == bookingRule.Id);
            if (idx >= 0)
            {
                bookingRules[idx] = bookingRule;
            }
            else
            {
                bookingRule.Id = Guid.NewGuid().ToString();
                bookingRules.Add(bookingRule);
            }
            await SaveAsync(bookingRules, BOOKING_RULES);
        }

        public async Task<BookingRule> GetBookingRuleAsync(string id)
        {
            var bookingRules = await GetBookingRuleListAsync();
            return bookingRules.FirstOrDefault(t => t.Id == id);
        }

        public async Task DeleteBookingRuleAsync(string id)
        {
            var bookingRules = await GetBookingRuleListAsync();
            bookingRules.RemoveAll(t => t.Id == id);
            await SaveAsync(bookingRules, BOOKING_RULES);
        }
    }
}