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

namespace EDPlayerJournal.Entries; 
public class MissionCompletedEntry : Entry {
    public Dictionary<string, Dictionary<ulong, string>> Influences { get; set; } = new Dictionary<string, Dictionary<ulong, string>>();
    private List<string> Affected { get; set; } = new List<string>();

    private string? readable_name = null;
    private bool readable_name_generated = false;

    protected override void Initialise() {
        MissionID = JSON.Value<ulong?>("MissionID") ?? 0;
        Name = JSON.Value<string>("Name");
        Faction = JSON.Value<string>("Faction") ?? "";
        TargetFaction = JSON.Value<string>("TargetFaction") ?? "";
        if (JSON.ContainsKey("Commodity_Localised")) {
            Commodity = JSON.Value<string>("Commodity_Localised");
        }
        if (JSON.ContainsKey("Count")) {
            Count = JSON.Value<int>("Count");
        }
        if (JSON.ContainsKey("Donated")) {
            Donated = JSON.Value<int>("Donated");
        }

        MakeHumanReadableName();
        BuildInfluenceList();
    }

    private void BuildInfluenceList() {
        Influences.Clear();
        Affected.Clear();

        var effects = JSON.Value<JArray>("FactionEffects");
        if (effects == null) {
            return;
        }

        foreach (var effect in effects.Children<JObject>()) {
            string? faction = effect.Value<string>("Faction");

            if (faction == null) {
                continue;
            }

            Affected.Add(faction);

            var influence = effect.Value<JArray>("Influence");
            if (influence == null || influence.Count == 0) {
                // No influence reward, happens sometimes, but we have to accept it
                Influences.Add(faction, new Dictionary<ulong, string>());
            } else {
                foreach (var infl in influence.Children<JObject>()) {
                    infl.TryGetValue("Influence", out JToken? result);
                    infl.TryGetValue("SystemAddress", out JToken? systemaddr);

                    if (result != null && result.Type == JTokenType.String &&
                        systemaddr != null && systemaddr.Type == JTokenType.Integer) {
                        ulong system = systemaddr.ToObject<ulong?>() ?? 0;
                        string inf = result.ToString();

                        if (!Influences.ContainsKey(faction)) {
                            Influences.Add(faction, new Dictionary<ulong, string>());
                        }

                        if (!Influences[faction].ContainsKey(system)) {
                            Influences[faction].Add(system, inf);
                        }
                    }
                }
            }
        }
    }

    public string? Name { get; set; }
    public string? Commodity { get; set; }
    public int? Count { get; set; }
    public int? Donated { get; set; }
    public ulong? MissionID { get; set; }
    public string? Faction { get; set; }
    public string? TargetFaction { get; set; }

    private void MakeHumanReadableName() {
        if (readable_name != null || Name == null) {
            return;
        }

        string? readable = HumanReadableMissionName.MakeHumanReadableName(Name);
        StringBuilder builder = new StringBuilder();

        if (readable == null) {
            builder = new StringBuilder(Name);
            builder.Replace("Mission_", "");
            builder.Replace("_name", "");
            builder.Replace("_MB", "");
            builder.Replace('_', ' ');
            builder.Replace("Illegal", " (Illegal)");
            builder.Replace("OnFoot", "On Foot");
            builder.Replace(" BS", "");
            builder.Replace("HackMegaship", "Hack Megaship");
            builder.Replace("Boom", "");
            builder.Replace("RebootRestore", "Reboot/Restore");
            builder.Replace("CivilLiberty", "");
            readable_name_generated = true;
        } else {
            builder.Append(readable);
        }

        if (Count > 0 && Commodity != null) {
            builder.AppendFormat(" ({0} {1})", Count, Commodity);
        }

        if (Donated != null || Donated > 0) {
            builder.AppendFormat(" ({0})", Credits.FormatCredits(Donated ?? 0));
        }

        readable_name = builder.ToString().Trim();
    }

    public string? HumanReadableName {
        get {
            MakeHumanReadableName();
            return readable_name;
        }
    }

    public bool HumanReadableNameWasGenerated {
        get {
            MakeHumanReadableName();
            return readable_name_generated;
        }
    }

    public string[] AffectedFactions => Affected.ToArray();

    public string? GetInfluenceForFaction(string faction) {
        if (Influences == null || !Influences.ContainsKey(faction)) {
            return null;
        }

        var inf = Influences[faction];
        return string.Join("", inf.Values);
    }

    public string? GetInfluenceForFaction(string faction, ulong systemaddr) {
        if (!Influences.ContainsKey(faction)) {
            return null;
        }

        if (!Influences[faction].ContainsKey(systemaddr)) {
            return null;
        }

        return Influences[faction][systemaddr];
    }
}