using System.Linq;
using System.Globalization;
using EDJournal;

namespace NonaBGS.BGS {
    public class Vouchers : LogEntry {
        private string type = null;

        public int TotalSum {
            get {
                return Entries
                    .Where(x => x.GetType() == typeof(RedeemVoucherEntry))
                    .Sum(x => (x as RedeemVoucherEntry).Amount)
                    ;
            }
        }

        public string Type {
            get {
                if (type == null) {
                    string v = Entries
                                 .Where(x => x.GetType() == typeof(RedeemVoucherEntry))
                                 .GroupBy(x => (x as RedeemVoucherEntry).Type)
                                 .Select(x => x.Key)
                                 .First();
                    type = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(v);
                }

                return type;
            }
        }

        public override int CompareTo(LogEntry other) {
            if (other.GetType() != typeof(Vouchers)) {
                return -1;
            }

            var b = other as Vouchers;
            if (b.Type == Type) {
                return 0;
            }

            return -1;
        }

        public override string ToString() {
            return string.Format("{0} Vouchers: {1}", Type, Credits.FormatCredits(TotalSum));
        }

        /// <summary>
        /// Vouchers only help the controlling faction
        /// </summary>
        public override bool OnlyControllingFaction => true;
    }
}