/*
 * CSB AWP Arena
 * Copyright (C) 2026 counter-strike-boost.com
 *
 * AWP-only game mode. Everyone spawns with an AWP and a knife, unlimited reserve
 * ammo, buying is blocked and death triggers an instant respawn. An optional
 * no-scope mode resets the player's FOV whenever they hold the AWP so the scope
 * cannot be used. A small HUD tracks each player's AWP kills.
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version. It is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See <https://www.gnu.org/licenses/> for details.
 */

#include <amxmodx>
#include <fakemeta>
#include <hamsandwich>
#include <cstrike>
#include <fun>

new const PLUGIN[] = "CSB AWP Arena"
new const VERSION[] = "1.0.0"
new const AUTHOR[]  = "counter-strike-boost.com"

new g_pEnabled, g_pNoScope, g_pRespawn
new g_iKills[33]
new g_iHudSync

public plugin_init()
{
    register_plugin(PLUGIN, VERSION, AUTHOR)

    g_pEnabled = register_cvar("csb_awp_enabled", "1")
    g_pNoScope = register_cvar("csb_awp_noscope", "0")
    g_pRespawn = register_cvar("csb_awp_respawn", "2.0")

    RegisterHam(Ham_Spawn, "player", "fwSpawnPost", 1)
    register_event("DeathMsg", "eventDeath", "a", "1>0")
    register_event("CurWeapon", "eventCurWeapon", "be", "1=1")

    register_clcmd("buy", "blockBuy")
    register_clcmd("buyammo", "blockBuy")
    register_clcmd("buyequip", "blockBuy")

    g_iHudSync = CreateHudSyncObj()

    set_task(1.0, "taskHud", 0, _, _, "b")
}

public client_putinserver(id)
{
    g_iKills[id] = 0
}

public fwSpawnPost(id)
{
    if (!get_pcvar_num(g_pEnabled))
        return

    if (!is_user_alive(id))
        return

    set_task(0.2, "taskEquip", id)
}

public taskEquip(id)
{
    if (!is_user_alive(id))
        return

    strip_user_weapons(id)
    give_item(id, "weapon_knife")
    give_item(id, "weapon_awp")

    cs_set_user_bpammo(id, CSW_AWP, 90)
}

public eventCurWeapon(id)
{
    if (!get_pcvar_num(g_pEnabled) || !get_pcvar_num(g_pNoScope))
        return

    if (!is_user_alive(id))
        return

    new weapon = read_data(2)

    if (weapon == CSW_AWP)
        set_pev(id, pev_fov, 90.0)
}

public blockBuy(id)
{
    if (get_pcvar_num(g_pEnabled))
    {
        client_print(id, print_chat, "[CSB] Buying is disabled in AWP Arena.")
        return PLUGIN_HANDLED
    }

    return PLUGIN_CONTINUE
}

public eventDeath()
{
    new killer = read_data(1)
    new victim = read_data(2)

    if (killer >= 1 && killer <= 32 && killer != victim)
        g_iKills[killer]++

    if (!get_pcvar_num(g_pEnabled))
        return

    if (victim >= 1 && victim <= 32)
        set_task(get_pcvar_float(g_pRespawn), "taskRespawn", victim)
}

public taskRespawn(id)
{
    if (!is_user_connected(id) || is_user_alive(id))
        return

    if (get_user_team(id) != 1 && get_user_team(id) != 2)
        return

    ExecuteHamB(Ham_CS_RoundRespawn, id)
}

public taskHud()
{
    if (!get_pcvar_num(g_pEnabled))
        return

    new players[32], num
    get_players(players, num, "ch")

    for (new i = 0; i < num; i++)
    {
        new id = players[i]

        set_hudmessage(0, 200, 255, 0.02, 0.85, 0, 0.0, 1.1, 0.0, 0.0, -1)
        ShowSyncHudMsg(id, g_iHudSync, "AWP kills: %d", g_iKills[id])
    }
}