#include <sourcemod>
#include <sdktools>
#include <sdkhooks>

#pragma semicolon 1

#define ZOMBIECLASS_CHARGER 6

new bool:lateLoad;
char sDataFilePath[PLATFORM_MAX_PATH];

public APLRes:AskPluginLoad2(Handle:plugin, bool:late, String:error[], errMax)
{
    lateLoad = late;
    return APLRes_Success;
}

public OnPluginStart()
{
    if (lateLoad)
    {
        for (new client = 1; client <= MaxClients; client++)
        {
            if (IsClientInGame(client))
            {
                OnClientPutInServer(client);
            }
        }
    }
    BuildPath(Path_SM, sDataFilePath, sizeof(sDataFilePath), "data/weapons_damage_charger_by_BHaType.ini");
    if (!FileExists(sDataFilePath))
    {
        new Handle:open_path = OpenFile(sDataFilePath, "w");
        WriteFileLine(open_path, "");
        CloseHandle(open_path);
        PrintToServer("Error Code: WSP-EC-01A");
        KvWriteToFile(sDataFilePath);
    }
}

void KvWriteToFile(const char[] path)
{
    KeyValues kv = new KeyValues("DamageCharger");
    kv.SetNum("weapon_autoshotgun/DamageForCharger", 1);
    kv.SetNum("weapon_hunting_rifle/DamageForCharger", 1);
    kv.SetNum("weapon_pistol/DamageForCharger", 1);
    kv.SetNum("weapon_rifle_ak47/DamageForCharger", 1);
    kv.SetNum("weapon_rifle/DamageForCharger", 1);
    kv.SetNum("weapon_pumpshotgun/DamageForCharger", 1);
    kv.SetNum("weapon_sniper_awp/DamageForCharger", 1);
    kv.SetNum("weapon_shotgun_chrome/DamageForCharger", 1);
    kv.SetNum("weapon_pistol_magnum/DamageForCharger", 1);
    kv.SetNum("weapon_grenade_launcher/DamageForCharger", 1);
    kv.SetNum("weapon_shotgun_spas/DamageForCharger", 1);
    kv.SetNum("weapon_smg/DamageForCharger", 1);
    kv.SetNum("weapon_smg_mp5 /DamageForCharger", 1);
    kv.SetNum("weapon_smg_silenced/DamageForCharger", 1);
    kv.SetNum("weapon_sniper_military/DamageForCharger", 1);
    kv.SetNum("weapon_rifle_sg552/DamageForCharger", 1);
    kv.SetNum("weapon_sniper_scout/DamageForCharger", 1);
    kv.SetNum("weapon_rifle_m60/DamageForCharger", 1);
    kv.SetNum("weapon_rifle_desert/DamageForCharger", 1);


    kv.ExportToFile(path);

    delete kv;
}

public OnClientPutInServer(client)
{
    SDKHook(client, SDKHook_OnTakeDamage, OnTakeDamage);
}

public OnClientDisconnect(client)
{
    SDKUnhook(client, SDKHook_OnTakeDamage, OnTakeDamage);
}

public Action:OnTakeDamage(victim, &attacker, &inflictor, &Float:damage, &damagetype)
{
    if (IsValidCharger(victim))
    {
        KeyValues kv = new KeyValues("DamageCharger");
        if (kv.ImportFromFile(sDataFilePath))
        {
            decl String:classname[64];
            GetClientWeapon(attacker, classname, sizeof(classname));
            if (KvJumpToKey(kv, classname, true))
            {
                new num = KvGetNum(kv, "DamageForTank", 1);
                damage += (damage * 0) + num;
                return Plugin_Changed;
            }
        }
    }

    return Plugin_Continue;
}

public IsValidCharger(client)
{
    if (IsValidClient(client) && GetClientTeam(client) == 3)
    {
        new class = GetEntProp(client, Prop_Send, "m_zombieClass");

        if (class == ZOMBIECLASS_CHARGER)
            return true;

        return false;
    }

    return false;
}

public IsValidClient(client)
{
    if (client <= 0)
        return false;

    if (client > MaxClients)
        return false;

    if (!IsClientInGame(client))
        return false;

    if (!IsPlayerAlive(client))
        return false;

    return true;
}