/*
 * CSB First Blood
 * Copyright (C) 2026 counter-strike-boost.com
 *
 * Detects the first kill of each round in a DeathMsg hook, plays a sound,
 * announces it in coloured chat and hands the killer a configurable reward
 * (bonus HP, cash, or both). Keeps a per-map first-blood tally and calls out
 * the current leader.
 *
 * 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 <amxmisc>
#include <cstrike>
#include <fun>

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

new g_pEnabled, g_pReward, g_pHp, g_pCash, g_pSound

new bool:g_bDone = false
new g_iFbCount[33]

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

    g_pEnabled = register_cvar("csb_fb_enabled", "1")
    g_pReward  = register_cvar("csb_fb_reward", "3")   /* 0 none, 1 hp, 2 cash, 3 both */
    g_pHp      = register_cvar("csb_fb_hp", "25")
    g_pCash    = register_cvar("csb_fb_cash", "1000")
    g_pSound   = register_cvar("csb_fb_sound", "buttons/bell1.wav")

    register_event("DeathMsg", "eventDeath", "a", "1>0")
    register_event("HLTV", "eventNewRound", "a", "1=0", "2=0")
}

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

public eventNewRound()
{
    g_bDone = false
}

public eventDeath()
{
    if (g_bDone || !get_pcvar_num(g_pEnabled))
        return

    new killer = read_data(1)
    new victim = read_data(2)

    if (killer < 1 || killer > 32 || killer == victim)
        return

    if (!is_user_connected(killer))
        return

    g_bDone = true
    g_iFbCount[killer]++

    reward(killer)

    new sound[64]
    get_pcvar_string(g_pSound, sound, charsmax(sound))

    if (sound[0])
        client_cmd(0, "spk ^"%s^"", sound)

    new name[32]
    get_user_name(killer, name, charsmax(name))

    client_print(0, print_chat, "^x04[CSB]^x01 First blood!^x03 %s^x01 drew it first this round.", name)

    announceLeader()
}

reward(id)
{
    new mode = get_pcvar_num(g_pReward)

    if (mode == 1 || mode == 3)
    {
        if (is_user_alive(id))
        {
            new hp = get_user_health(id) + get_pcvar_num(g_pHp)
            set_user_health(id, hp)
            client_print(id, print_chat, "[CSB] First-blood bonus: +%d HP.", get_pcvar_num(g_pHp))
        }
    }

    if (mode == 2 || mode == 3)
    {
        new add = get_pcvar_num(g_pCash)
        new money = cs_get_user_money(id) + add

        if (money > 16000)
            money = 16000

        cs_set_user_money(id, money)
        client_print(id, print_chat, "[CSB] First-blood bonus: +$%d.", add)
    }
}

announceLeader()
{
    new leader = 0, best = 0

    new players[32], num, pid
    get_players(players, num, "c")

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

        if (g_iFbCount[pid] > best)
        {
            best = g_iFbCount[pid]
            leader = pid
        }
    }

    if (leader && best >= 2)
    {
        new name[32]
        get_user_name(leader, name, charsmax(name))
        client_print(0, print_chat, "[CSB] First-blood leader this map: %s (%d).", name, best)
    }
}