using System;
using System.Collections.Generic;
using HutongGames.PlayMaker;
using UnityEngine;

namespace MSCO
{
    /// <summary>
    /// Admin-Menü, Reiter VEHICLE: Füllstände und Teile des Satsuma aus der "Database" des Spiels anzeigen und zum Testen
    /// reparieren/zerstören. Jedes Teil hat dort ein Objekt mit der FSM "Data" (Installed, Bolted, Damaged, teils Wear);
    /// die Füllstände stehen in Tank, Ölwanne, Brems- und Kupplungszylinder. Die Werte überträgt VehicleStateSync an alle.
    /// </summary>
    public static class VehicleAdmin
    {
        public sealed class Fluid
        {
            public string Label;
            public FsmFloat Value;
            public float Max;
        }

        public sealed class Part
        {
            public string Name, Category;
            public FsmBool Damaged, Installed;
            public FsmFloat Wear;
        }

        static readonly List<Fluid> fluids = new List<Fluid>();
        static readonly List<Part> parts = new List<Part>();
        static float scannedAt = -100f;

        public static List<Fluid> Fluids { get { Refresh(false); return fluids; } }
        public static List<Part> Parts { get { Refresh(false); return parts; } }

        // Füllstand: Teil in der Database, Variable, Anzeige, Maximum (Tank: aus MaxCapacity)
        static readonly string[][] FluidDefs =
        {
            new[] { "FuelTank", "FuelLevel", "Fuel", "36" },
            new[] { "Oilpan", "Oil", "Engine oil", "3" },
            new[] { "BrakeMasterCylinder", "BrakeFluidF", "Brake fluid (front)", "1" },
            new[] { "BrakeMasterCylinder", "BrakeFluidR", "Brake fluid (rear)", "1" },
            new[] { "ClutchMasterCylinder", "ClutchFluid", "Clutch fluid", "0.5" },
            new[] { "Radiator", "Water", "Coolant", "6" },
        };

        /// <summary>Database neu einlesen (höchstens alle 5 s, außer erzwungen).</summary>
        public static void Refresh(bool force)
        {
            if (!force && Time.realtimeSinceStartup - scannedAt < 5f) return;
            scannedAt = Time.realtimeSinceStartup;
            fluids.Clear();
            parts.Clear();
            if (!MenuHelper.InGame) return;
            var byName = new Dictionary<string, PlayMakerFSM>();
            foreach (PlayMakerFSM fsm in Resources.FindObjectsOfTypeAll<PlayMakerFSM>())
            {
                if (fsm == null || fsm.FsmName != "Data" || fsm.gameObject.hideFlags != HideFlags.None) continue;
                Transform t = fsm.transform;
                if (t.root.name != "Database" || t.parent == null || t.parent.parent != t.root) continue;
                string category = t.parent.name;
                if (category == "DatabaseOrders" || category == "PlayerDatabase") continue; // Bestellungen/Spieler: keine Fahrzeugteile
                byName[t.name] = fsm;

                FsmBool installed = fsm.FsmVariables.FindFsmBool("Installed");
                FsmBool damaged = fsm.FsmVariables.FindFsmBool("Damaged");
                FsmFloat wear = fsm.FsmVariables.FindFsmFloat("Wear");
                if (damaged == null && wear == null) continue;
                parts.Add(new Part
                {
                    Name = Pretty(t.name),
                    Category = category.Replace("Database", ""),
                    Damaged = damaged, Installed = installed, Wear = wear,
                });
            }
            parts.Sort((a, b) => string.Compare(a.Category + a.Name, b.Category + b.Name, StringComparison.Ordinal));

            foreach (string[] def in FluidDefs)
            {
                PlayMakerFSM fsm;
                if (!byName.TryGetValue(def[0], out fsm)) continue;
                FsmFloat value = fsm.FsmVariables.FindFsmFloat(def[1]);
                if (value == null) continue;
                float max = float.Parse(def[3], System.Globalization.CultureInfo.InvariantCulture);
                FsmFloat capacity = fsm.FsmVariables.FindFsmFloat("MaxCapacity");
                if (def[0] == "FuelTank" && capacity != null && capacity.Value > 0f) max = capacity.Value;
                fluids.Add(new Fluid { Label = def[2], Value = value, Max = max });
            }
        }

        /// <summary>"RadiatorHose1" -> "Radiator Hose 1", "Drumbrake_RR" -> "Drumbrake RR".</summary>
        static string Pretty(string name)
        {
            var sb = new System.Text.StringBuilder();
            for (int i = 0; i < name.Length; i++)
            {
                char c = name[i];
                if (c == '_') { sb.Append(' '); continue; }
                if (i > 0 && ((char.IsUpper(c) && char.IsLower(name[i - 1])) || (char.IsDigit(c) && !char.IsDigit(name[i - 1])))) sb.Append(' ');
                sb.Append(c);
            }
            return sb.ToString();
        }

        public static void SetFluid(Fluid f, bool full)
        {
            if (f.Value != null) f.Value.Value = full ? f.Max : 0f;
        }

        public static void Repair(Part p)
        {
            if (p.Damaged != null) p.Damaged.Value = false;
            if (p.Wear != null) p.Wear.Value = 100f;
        }

        public static void Break(Part p)
        {
            if (p.Damaged != null) p.Damaged.Value = true;
            if (p.Wear != null) p.Wear.Value = 0f;
        }

        public static int RepairAll()
        {
            Refresh(true);
            int n = 0;
            foreach (Part p in parts)
            {
                if (p.Installed != null && !p.Installed.Value) continue;
                bool needs = (p.Damaged != null && p.Damaged.Value) || (p.Wear != null && p.Wear.Value < 100f);
                if (!needs) continue;
                Repair(p);
                n++;
            }
            return n;
        }
    }
}