using Elwig.Models.Dtos;
using iText.Kernel.Pdf;
using iText.Layout.Element;
using iText.Layout.Properties;
using System.Collections.Generic;
using System.Linq;

namespace Elwig.Documents {
    public class DeliveryJournal : Document {

        public new static string Name => "Lieferjournal";

        public string Filter;
        public List<DeliveryJournalRow> Deliveries;

        public DeliveryJournal(string filter, IEnumerable<DeliveryJournalRow> deliveries) :
            base($"{Name} {filter}") {
            Filter = filter;
            Deliveries = [.. deliveries];
        }

        public DeliveryJournal(string filter, DeliveryJournalData data) :
            this(filter, data.Rows) {
        }

        protected override void RenderBody(iText.Layout.Document doc, PdfDocument pdf) {
            base.RenderBody(doc, pdf);
            doc.Add(new KernedParagraph(Name, 24)
                .SetTextAlignment(TextAlignment.CENTER).SetFont(BF)
                .SetMarginsMM(0, 0, 2, 0));
            doc.Add(new KernedParagraph(Filter, 14)
                .SetTextAlignment(TextAlignment.CENTER).SetFont(BF)
                .SetMarginsMM(0, 0, 5, 0));
            doc.Add(NewJournalTable(Deliveries));
        }

        protected Table NewJournalTable(List<DeliveryJournalRow> deliveries) {
            var tbl = new Table(ColsMM(25, 6, 15, 8, 11, 38, 28, 10, 10, 14), true)
                .SetWidth(UnitValue.CreatePercentValue(100)).SetFixedLayout()
                .SetBorderCollapse(BorderCollapsePropertyValue.COLLAPSE);

            tbl.AddHeaderCell(NewTh("Lieferschein-Nr.", rowspan: 2, left: true))
                .AddHeaderCell(NewTh("Pos.", rowspan: 2).SetPaddingRight(0))
                .AddHeaderCell(NewTh("Datum", rowspan: 2))
                .AddHeaderCell(NewTh("Zeit", rowspan: 2))
                .AddHeaderCell(NewTh("MgNr.", rowspan: 2))
                .AddHeaderCell(NewTh("Mitglied", rowspan: 2, left: true))
                .AddHeaderCell(NewTh("Sorte", rowspan: 2, left: true))
                .AddHeaderCell(NewTh("Gradation", colspan: 2))
                .AddHeaderCell(NewTh("Menge"))
                .AddHeaderCell(NewTh("[°Oe]"))
                .AddHeaderCell(NewTh("[°KMW]").SetPaddingLeft(0).SetPaddingRight(0))
                .AddHeaderCell(NewTh("[kg]"));

            foreach (var p in deliveries) {
                tbl.AddCell(NewTd(p.LsNr))
                    .AddCell(NewTd($"{p.Pos:N0}", center: true).SetPaddingLeft(0).SetPaddingRight(0))
                    .AddCell(NewTd($"{p.Date:dd.MM.yyyy}", 8, center: true))
                    .AddCell(NewTd($"{p.Time:HH:mm}", 8, center: true).SetPadding(0))
                    .AddCell(NewTd($"{p.MgNr}", right: true))
                    .AddCell(NewTd(p.AdministrativeName, 8))
                    .AddCell(NewTd(p.Variety, 8))
                    .AddCell(NewTd($"{p.Oe:N0}", center: true))
                    .AddCell(NewTd($"{p.Kmw:N1}", center: true).SetPaddingLeft(0).SetPaddingRight(0))
                    .AddCell(NewTd($"{p.Weight:N0}", right: true));
            }

            var branches = deliveries.Select(d => d.DeliveryBranch).Distinct().Order().ToArray();
            if (branches.Length > 1) {
                foreach (var b in branches) {
                    var border = branches[0] == b;
                    var branchDeliveries = deliveries.Where(d => d.DeliveryBranch == b).ToList();
                    var branchKmw = Helpers.Utils.AggregateDeliveryPartsKmw(branchDeliveries);
                    var branchOe = Helpers.Utils.KmwToOe(branchKmw);
                    tbl.AddCell(NewTd($"{b}:", colspan: 2, bold: true, borderTop: border))
                        .AddCell(NewTd($"(Teil-)Lieferungen: {branchDeliveries.DistinctBy(p => p.LsNr).Count():N0} ({branchDeliveries.Count:N0})", colspan: 5, bold: true, borderTop: border))
                        .AddCell(NewTd($"{branchOe:N0}", center: true, bold: true, borderTop: border))
                        .AddCell(NewTd($"{branchOe:N1}", center: true, bold: true, borderTop: border))
                        .AddCell(NewTd($"{branchDeliveries.Sum(p => p.Weight):N0}", right: true, bold: true, borderTop: border));
                }
            }

            var kmw = Helpers.Utils.AggregateDeliveryPartsKmw(deliveries);
            var oe = Helpers.Utils.KmwToOe(kmw);
            tbl.AddCell(NewTd("Gesamt:", colspan: 2, bold: true, borderTop: true))
                .AddCell(NewTd($"(Teil-)Lieferungen: {deliveries.DistinctBy(p => p.LsNr).Count():N0} ({deliveries.Count:N0})", colspan: 5, bold: true, borderTop: true))
                .AddCell(NewTd($"{oe:N0}", center: true, bold: true, borderTop: true))
                .AddCell(NewTd($"{kmw:N1}", center: true, bold: true, borderTop: true))
                .AddCell(NewTd($"{deliveries.Sum(p => p.Weight):N0}", right: true, bold: true, borderTop: true));

            return tbl;
        }
    }
}