/*
 * CSB Timeleft HUD
 * Copyright (C) 2026 counter-strike-boost.com
 *
 * Shows the remaining map time as a permanent HUD element, refreshed every
 * second from get_timeleft(). The colour turns to amber and then red as time
 * runs out, and the server announces "10 / 5 / 1 minute(s) left" in coloured
 * chat. Players can check the time themselves with say /timeleft.
 *
 * This is an independent GPL implementation; it is not based on any other
 * plugin's source.
 *
 * 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>

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

new g_pEnabled, g_pX, g_pY, g_pAnnounce
new g_iSync
new g_iLastAnnounce = -1

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

    g_pEnabled  = register_cvar("csb_timeleft_enabled", "1")
    g_pX        = register_cvar("csb_timeleft_x", "0.02")
    g_pY        = register_cvar("csb_timeleft_y", "0.90")
    g_pAnnounce = register_cvar("csb_timeleft_announce", "1")

    g_iSync = CreateHudSyncObj()

    register_clcmd("say /timeleft", "cmdTimeleft")
    register_clcmd("say_team /timeleft", "cmdTimeleft")

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

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

    new seconds = get_timeleft()

    if (seconds <= 0)
    {
        /* no mp_timelimit set - nothing to count down */
        set_hudmessage(120, 200, 120, get_pcvar_float(g_pX), get_pcvar_float(g_pY), 0, 0.0, 1.1, 0.0, 0.0, -1)
        ShowSyncHudMsg(0, g_iSync, "Time left: no limit")
        return
    }

    new r, g, b
    hudColor(seconds, r, g, b)

    new text[48]
    formatTime(seconds, text, charsmax(text))

    set_hudmessage(r, g, b, get_pcvar_float(g_pX), get_pcvar_float(g_pY), 0, 0.0, 1.1, 0.0, 0.0, -1)
    ShowSyncHudMsg(0, g_iSync, "Time left: %s", text)

    announce(seconds)
}

hudColor(seconds, &r, &g, &b)
{
    if (seconds <= 60)      { r = 255; g = 40;  b = 40;  }   /* last minute - red     */
    else if (seconds <= 300){ r = 255; g = 170; b = 40;  }   /* last 5 min - amber    */
    else                    { r = 120; g = 200; b = 255; }   /* normal - light blue   */
}

formatTime(seconds, out[], len)
{
    new mins = seconds / 60
    new secs = seconds % 60

    if (mins >= 60)
    {
        new hours = mins / 60
        mins %= 60
        formatex(out, len, "%d:%02d:%02d", hours, mins, secs)
    }
    else
    {
        formatex(out, len, "%d:%02d", mins, secs)
    }
}

announce(seconds)
{
    if (!get_pcvar_num(g_pAnnounce))
        return

    new mark = 0

    if (seconds <= 63 && seconds >= 57)
        mark = 1
    else if (seconds <= 303 && seconds >= 297)
        mark = 5
    else if (seconds <= 603 && seconds >= 597)
        mark = 10

    if (mark == 0 || mark == g_iLastAnnounce)
        return

    g_iLastAnnounce = mark

    client_print_color(0, print_team_default, "^x04[CSB]^x01 %d^x03 minute%s^x01 left on this map.", mark, mark == 1 ? "" : "s")
}

public cmdTimeleft(id)
{
    new seconds = get_timeleft()

    if (seconds <= 0)
    {
        client_print_color(id, print_team_default, "^x04[CSB]^x01 This map has no time limit.")
        return PLUGIN_HANDLED
    }

    new text[48]
    formatTime(seconds, text, charsmax(text))
    client_print_color(id, print_team_default, "^x04[CSB]^x01 Time left on this map:^x04 %s", text)

    return PLUGIN_HANDLED
}