/*
 * CSB Damage Report
 * Copyright (C) 2026 counter-strike-boost.com
 *
 * Accumulates every hit in Ham_TakeDamage into per-attacker/per-victim tables
 * that reset each round, then prints "who hit you for how much" and "who you
 * hit" when a player dies, and on demand with /dmg. Optionally shows a short
 * HUD summary of the exchange with the killer.
 *
 * Inspired by the "Damager / Hit Report" plugin by VEN. This is an independent
 * GPL re-implementation; no original code is reused.
 *
 * 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 the GNU General
 * Public License for more details: <https://www.gnu.org/licenses/>.
 */

#include <amxmodx>
#include <hamsandwich>

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

/* [attacker][victim] */
new g_iDamage[33][33]
new g_iHits[33][33]

new g_pEnabled, g_pHud, g_pOnDeath

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

    g_pEnabled = register_cvar("csb_dmg_enabled", "1")
    g_pHud     = register_cvar("csb_dmg_hud", "1")
    g_pOnDeath = register_cvar("csb_dmg_ondeath", "1")

    RegisterHam(Ham_TakeDamage, "player", "fwTakeDamage")

    register_event("DeathMsg", "eDeath", "a")
    register_event("HLTV", "eNewRound", "a", "1=0", "2=0")

    register_clcmd("say /dmg", "cmdDmg")
    register_clcmd("say_team /dmg", "cmdDmg")
    register_clcmd("say /hp", "cmdDmg")
}

public eNewRound()
{
    for (new i = 1; i <= 32; i++)
    {
        for (new j = 1; j <= 32; j++)
        {
            g_iDamage[i][j] = 0
            g_iHits[i][j] = 0
        }
    }
}

public fwTakeDamage(victim, inflictor, attacker, Float:damage, damagebits)
{
    if (!get_pcvar_num(g_pEnabled))
        return HAM_IGNORED

    if (attacker < 1 || attacker > 32 || victim < 1 || victim > 32)
        return HAM_IGNORED

    if (attacker == victim)
        return HAM_IGNORED

    new dmg = floatround(damage)

    if (dmg <= 0)
        return HAM_IGNORED

    g_iDamage[attacker][victim] += dmg
    g_iHits[attacker][victim]++

    return HAM_IGNORED
}

public eDeath()
{
    if (!get_pcvar_num(g_pEnabled) || !get_pcvar_num(g_pOnDeath))
        return

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

    if (victim < 1 || victim > 32 || !is_user_connected(victim))
        return

    printReport(victim)

    if (get_pcvar_num(g_pHud) && killer >= 1 && killer <= 32 && killer != victim && is_user_connected(killer))
    {
        new kname[32]
        get_user_name(killer, kname, charsmax(kname))

        set_hudmessage(255, 80, 80, -1.0, 0.28, 0, 0.0, 4.0, 0.1, 0.2, -1)
        show_hudmessage(victim, "Killed by %s^nHe hit you: %d dmg / %d hits^nYou hit him: %d dmg / %d hits",
            kname,
            g_iDamage[killer][victim], g_iHits[killer][victim],
            g_iDamage[victim][killer], g_iHits[victim][killer])
    }
}

public cmdDmg(id)
{
    if (!get_pcvar_num(g_pEnabled))
        return PLUGIN_HANDLED

    printReport(id)
    return PLUGIN_HANDLED
}

printReport(id)
{
    new name[32], line[160], count

    client_print(id, print_chat, "[CSB] ---- Damage you dealt this round ----")
    count = 0

    for (new v = 1; v <= 32; v++)
    {
        if (v == id || g_iHits[id][v] <= 0)
            continue

        if (is_user_connected(v))
            get_user_name(v, name, charsmax(name))
        else
            copy(name, charsmax(name), "disconnected")

        formatex(line, charsmax(line), "  -> %s : %d damage in %d hit(s)", name, g_iDamage[id][v], g_iHits[id][v])
        client_print(id, print_chat, line)
        count++
    }

    if (!count)
        client_print(id, print_chat, "  (you dealt no damage)")

    client_print(id, print_chat, "[CSB] ---- Damage you took this round ----")
    count = 0

    for (new a = 1; a <= 32; a++)
    {
        if (a == id || g_iHits[a][id] <= 0)
            continue

        if (is_user_connected(a))
            get_user_name(a, name, charsmax(name))
        else
            copy(name, charsmax(name), "disconnected")

        formatex(line, charsmax(line), "  <- %s : %d damage in %d hit(s)", name, g_iDamage[a][id], g_iHits[a][id])
        client_print(id, print_chat, line)
        count++
    }

    if (!count)
        client_print(id, print_chat, "  (you took no damage)")
}