using System.Collections.Generic;
using System.Linq;
using System.Text.Json.Nodes;

namespace Elwig.Helpers.Billing {
    public class GraphEntry {

        public int Id { get; set; }
        public BillingData.CurveMode Mode { get; set; }
        public Graph DataGraph { get; set; }
        public Graph? GebundenGraph { get; set; }
        public decimal? GebundenFlatBonus { get; set; }
        public List<ContractSelection> Contracts { get; set; }
        public string ContractsStringSimple => Contracts.Any() ? string.Join(", ", Contracts.Select(c => c.Listing)) : "-";
        public string ContractsString => Contracts.Any() ? string.Join("\n", Contracts.Select(c => c.ToString())) : "-";
        private int MinX { get; set; }
        private int MaxX { get; set; }

        public GraphEntry(int id, BillingData.CurveMode mode, int minX, int maxX) {
            Id = id;
            Mode = mode;
            MinX = minX;
            MaxX = maxX;
            DataGraph = new Graph(minX, maxX);
            Contracts = [];
        }

        public GraphEntry(int id, BillingData.CurveMode mode, Dictionary<double, decimal> data, Dictionary<double, decimal>? gebunden,
            int minX, int maxX) : this(id, mode, minX, maxX) {
            DataGraph = new Graph(data, minX, maxX);
            if (gebunden != null) GebundenGraph = new Graph(gebunden, minX, maxX);
        }

        public GraphEntry(int id, BillingData.Curve curve, int minX, int maxX) :
            this(id, curve.Mode, minX, maxX) {
            DataGraph = new Graph(curve.Normal, minX, maxX);
            if (curve.Gebunden != null)
                GebundenGraph = new Graph(curve.Gebunden, minX, maxX);
        }

        private GraphEntry(int id, BillingData.CurveMode mode, Graph dataGraph, Graph? gebundenGraph,
            decimal? gebundenFlatPrice, List<ContractSelection> contracts, int minX, int maxX) {
            Id = id;
            Mode = mode;
            MinX = minX;
            MaxX = maxX;
            DataGraph = dataGraph;
            GebundenGraph = gebundenGraph;
            GebundenFlatBonus = gebundenFlatPrice;
            Contracts = contracts;
        }

        public void AddGebundenGraph() {
            GebundenGraph ??= new Graph(MinX, MaxX);
        }

        public void RemoveGebundenGraph() {
            GebundenGraph = null;
        }

        public void SetGebundenFlatBonus(decimal? value) {
            GebundenFlatBonus = value;
        }

        public JsonObject ToJson() {
            var curve = new JsonObject {
                ["id"] = Id,
                ["mode"] = Mode.ToString().ToLower(),
            };

            curve["data"] = DataGraph.ToJson(Mode.ToString().ToLower());

            if (GebundenFlatBonus != null) {
                curve["geb"] = GebundenFlatBonus;
            } else if (GebundenGraph != null) {
                curve["geb"] = GebundenGraph.ToJson(Mode.ToString().ToLower());
            }

            return curve;
        }

        public GraphEntry Copy(int id) {
            return new GraphEntry(id, Mode, (Graph)DataGraph.Clone(), (Graph?)GebundenGraph?.Clone(), GebundenFlatBonus, [], MinX, MaxX);
        }
    }
}