using System;
using System.Collections.Generic;
using System.Linq;
using AmongUs.GameOptions;
using EHR.Roles;
using HarmonyLib;
using UnityEngine;

namespace EHR.Modules;

internal static class GhostRolesManager
{
    public static Dictionary<byte, (CustomRoles Role, IGhostRole Instance)> AssignedGhostRoles = [];
    private static List<CustomRoles> GhostRoles = [];

    public static void Initialize()
    {
        AssignedGhostRoles = [];
        GhostRoles = Main.CustomRoleValues.Where(x => x != CustomRoles.EvilSpirit && x.IsGhostRole() && IRandom.Instance.Next(100) < x.GetMode()).ToList();

        Logger.Msg($"Ghost roles: {GhostRoles.Join()}", "GhostRoles");
        Haunter.AllHauntedPlayers = [];
    }

    public static void AssignGhostRole(PlayerControl pc)
    {
        if (GhostRoles.Count == 0) return;

        CustomRoles suitableRole = GetSuitableGhostRole(pc);
        Logger.Msg($"Assigning Ghost Role: {pc.GetNameWithRole()} => {suitableRole}", "GhostRolesManager");

        IGhostRole instance = CreateGhostRoleInstance(suitableRole);
        pc.RpcSetCustomRole(suitableRole);
        pc.RpcSetRoleDesync(instance.RoleTypes, pc.OwnerId);
        instance.OnAssign(pc);
        Main.ResetCamPlayerList.Add(pc.PlayerId);
        AssignedGhostRoles[pc.PlayerId] = (suitableRole, instance);

        if (suitableRole == CustomRoles.Haunter)
            GhostRoles.Remove(suitableRole);
        
        if (instance.RoleTypes == RoleTypes.GuardianAngel)
            pc.AddAbilityCD(instance.Cooldown);

        NotifyAboutGhostRole(pc, true);
    }

    public static void SpecificAssignGhostRole(byte id, CustomRoles role, bool set)
    {
        if (AssignedGhostRoles.Any(x => x.Key == id || x.Value.Role == role)) return;

        PlayerControl pc = Utils.GetPlayerById(id);
        IGhostRole instance = CreateGhostRoleInstance(role);
        if (set) pc.RpcSetRoleDesync(instance.RoleTypes, pc.OwnerId);
        instance.OnAssign(pc);
        Main.ResetCamPlayerList.Add(pc.PlayerId);
        AssignedGhostRoles[id] = (role, instance);
    }

    public static void NotifyAboutGhostRole(PlayerControl pc, bool first = false)
    {
        if (!AssignedGhostRoles.TryGetValue(pc.PlayerId, out (CustomRoles Role, IGhostRole Instance) ghostRole)) return;

        if (!first && pc.IsModdedClient()) return;

        CustomRoles role = ghostRole.Role;
        (string Split, string Message) info = GetMessage(Translator.GetString($"{role}InfoLong").FixRoleName(role).Split("\n")[1..].Join(delimiter: "\n"));
        var text = $"{Translator.GetString("GotGhostRoleNotify")}\n<size=80%>{info.Message}</size>";
        var notifyText = $"{Translator.GetString("GotGhostRoleNotify")}\n<size=80%>{info.Split}</size>";
        Utils.SendMessage(title: text, sendTo: pc.PlayerId, text: "\n");
        pc.Notify(notifyText, 10 + 5 * text.Count(x => x == '\n'));
        return;

        (string Split, string Message) GetMessage(string baseMessage)
        {
            string message = baseMessage;

            for (var i = 50; i < message.Length; i += 50)
            {
                int index = message.LastIndexOf(' ', i);
                if (index != -1) message = message.Insert(index + 1, "\n");
            }

            return (ApplyFormat(message), ApplyFormat(baseMessage));

            string ApplyFormat(string m) => Utils.ColorString(Color.white, m.Replace(role.ToString(), role.ToColoredString()));
        }
    }

    public static bool ShouldHaveGhostRole(PlayerControl pc)
    {
        try
        {
            if (GameStates.IsEnded) return false;
            if (Options.CurrentGameMode != CustomGameMode.Standard) return false;
            if (AssignedGhostRoles.Count >= GhostRoles.Count) return false;

            if (pc.IsAlive() || pc.GetCountTypes() is CountTypes.None or CountTypes.OutOfGame || pc.Is(CustomRoles.EvilSpirit) || pc.Is(CustomRoles.Anchor)) return false;

            switch (pc.GetCustomRole())
            {
                case CustomRoles.GM:
                case CustomRoles.Curser:
                case CustomRoles.Backstabber:
                case CustomRoles.Innocent:
                case CustomRoles.Workaholic when !Workaholic.WorkaholicCannotWinAtDeath.GetBool():
                    return false;
            }

            var killer = pc.GetRealKiller();
            if (killer && killer.Is(CustomRoles.SoulCollector) && Main.DiedThisRound.Contains(pc.PlayerId)) return false;

            CustomRoles suitableRole = GetSuitableGhostRole(pc);

            return suitableRole switch
            {
                CustomRoles.Phantasm when IsPartnerPickedRole() => false,
                _ => suitableRole.IsGhostRole() && !AssignedGhostRoles.Any(x => x.Key == pc.PlayerId || x.Value.Role == suitableRole)
            };

            bool IsPartnerPickedRole() =>
                Main.PlayerStates[pc.PlayerId].Role switch
                {
                    Romantic when Romantic.HasPickedPartner => true,
                    Follower tc when tc.BetPlayer != byte.MaxValue => true,
                    _ => false
                };
        }
        catch (Exception e)
        {
            Utils.ThrowException(e);
            return false;
        }
    }

    private static CustomRoles GetSuitableGhostRole(PlayerControl pc)
    {
        return GhostRoles.FirstOrDefault(x => AssignedGhostRoles.All(r => r.Value.Role != x) && (CreateGhostRoleInstance(x)?.Team & pc.GetTeam()) != 0);
    }
    
    public static readonly Dictionary<CustomRoles, Type> GhostRoleTypes = [];

    public static IGhostRole CreateGhostRoleInstance(CustomRoles ghostRole, bool check = false)
    {
        try
        {
            if (!GhostRoleTypes.TryGetValue(ghostRole, out Type ghostRoleClass))
            {
                ghostRoleClass = Main.AllTypes.First(x => typeof(IGhostRole).IsAssignableFrom(x) && !x.IsInterface && x.Name == $"{ghostRole}");
                GhostRoleTypes[ghostRole] = ghostRoleClass;
            }
            
            var ghostRoleInstance = (IGhostRole)Activator.CreateInstance(ghostRoleClass);
            return ghostRoleInstance;
        }
        catch (InvalidOperationException)
        {
            if (!check) Logger.Error($"Ghost role {ghostRole} not found", "CreateGhostRoleInstance");

            return null;
        }
        catch (Exception e)
        {
            if (!check) Utils.ThrowException(e);

            return null;
        }
    }

    public static void RemoveGhostRole(byte id)
    {
        if (!AssignedGhostRoles.TryGetValue(id, out (CustomRoles Role, IGhostRole Instance) ghostRole)) return;

        Main.PlayerStates[id].RemoveSubRole(ghostRole.Role);
        AssignedGhostRoles.Remove(id);
    }
}