using Elwig.Models;
using Microsoft.EntityFrameworkCore;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Elwig.Helpers.Export {
    public class Bki : Csv<DeliveryPart> {

        private readonly string _clientData;

        public Bki(string filename) : base(filename, ';', Encoding.Latin1) {
            Header = """
                EDV-Liste zum automatischen Einlesen in die Weindatenbank;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
                ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
                Stammdaten;;;;;;;;;;;;;;Transportschein;;;;;;;;;;;;;;;;
                Empfänger:;;;;;;;Versender:;;;;;;;;;;;;;;;;;;;;;;;
                Betriebsnr;Name od. Firmenname;Vorname;Straße;Hausnr;Plz;Ort;Betriebsnr;Name od. Firmenname;Vorname;Straße;Hausnr;Plz;Ort;Datum der Lieferung;Menge in kg;Art;Weiß;Rot;Sorte1;Sorte2;Sorte3;Qualitätsstufe;Jahrgang;Herkunft;°KMW;°Oe;Vollablieferer;Ha Gesamt;Ha Ertragsfähig;Flächenbindung in Ha für AMA
                """;
            var c = App.Client;
            var (a1, a2) = Utils.SplitAddress(c.Address);
            _clientData = $"{c.LfbisNr};{c.NameFull};;{a1};{a2};{c.Plz};{c.Ort}";
        }

        public async Task ExportAsync(AppDbContext ctx, int year) {
            await ExportAsync(await ctx.DeliveryParts.Where(p => p.Year == year).ToListAsync());
        }

        public void Export(AppDbContext ctx, int year) {
            ExportAsync(ctx, year).GetAwaiter().GetResult();
        }

        public override string FormatRow(DeliveryPart p) {
            var d = p.Delivery;
            var m = d.Member;
            string memberData;
            if (m.BillingAddress is BillingAddr a) {
                var (n1, n2) = Utils.SplitName(a.Name, m.FamilyName);
                var (a1, a2) = Utils.SplitAddress(a.Address);
                memberData = $"{m.LfbisNr};{n1};{n2};{a1};{a2};{a.PostalDest.AtPlz?.Plz};{a.PostalDest.AtPlz?.Ort.Name}";
            } else {
                var (a1, a2) = Utils.SplitAddress(m.Address);
                memberData = $"{m.LfbisNr};{m.FamilyName};{m.AdministrativeName2};{a1};{a2};{m.PostalDest.AtPlz?.Plz};{m.PostalDest.AtPlz?.Ort.Name}";
            }
            var s = p.Variant;
            var deliveryData = $"{d.Date:dd.MM.yyyy};{p.Weight};TB;{(s.IsWhite ? "J" : "")};{(s.IsRed ? "J" : "")};{s.SortId};;;{p.QualId};{d.Year};{p.HkId};{p.Kmw:0.0};{p.Oe:0}";
            var vollData = $"N;;;{m.AreaCommitments.Where(a => a.YearFrom <= d.Year && (a.YearTo == null || a.YearTo >= d.Year)).Sum(a => a.Area) / 10_000.0}";
            return $"{_clientData};{memberData};{deliveryData};{vollData}";
        }
    }
}