-- Available @ https://fxcodebase.com/code/viewtopic.php?f=17&t=70321&sid=0a617afecd15e2772f8bd80e580133a6&start=10
--
-- ── Author ─────────────────────────────────────────────────────────────────────
-- Developed by: Mario Jemic
-- Email:        mario.jemic@gmail.com
-- Website:      https://mario-jemic.com
--
-- ── Support & Donations ────────────────────────────────────────────────────────
-- PayPal:        https://goo.gl/9Rj74e
-- Patreon:       https://tiny.cc/1ybwxz
-- BuyMeACoffee:  https://tiny.cc/bj7vxz
--
-- Crypto:
--  BTC : 16F5k43RXibTmna4np8bPVgmXM1CzjXFJJ
--  SOL : 3nh5rpUKopcYLNU4zGCdUFAkM3iRQq8VVUmuzVG6VDf2
--  ETH/BNB/USDT/XRP (ERC20 & BEP20): 0xe53aab6bc468a963a02d1319660ee60cf80fc8e7
--
-- ── Copyright ──────────────────────────────────────────────────────────────────
-- © 2025 Gehtsoft USA LLC — https://fxcodebase.com

-- 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.
--
-- This program 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/>.

function Init()
    indicator:name("Vertical line by time");
    indicator:description("");
    indicator:requiredSource(core.Tick);
    indicator:type(core.Indicator);

    indicator.parameters:addString("StartTime", "Time", "", "00:00:00");
    
    indicator.parameters:addColor("line_color", "Line Color", "Color", core.colors().Red);
    indicator.parameters:addInteger("line_width", "Line Width", "Width", 1, 1, 5);
    indicator.parameters:addInteger("line_style", "Line Style", "Style", core.LINE_SOLID);
    indicator.parameters:setFlag("line_style", core.FLAG_LINE_STYLE);
end

local source;
local OpenTime;
function Prepare(nameOnly)
    source = instance.source;
    local name = string.format("%s(%s)", profile:id(), source:name());
    instance:name(name);
    if nameOnly then
        return ;
    end
    
    local valid
    OpenTime, valid = ParseTime(instance.parameters.StartTime)
    assert(valid, "Time " .. instance.parameters.StartTime .. " is invalid")

    instance:ownerDrawn(true);
end

function ParseTime(time)
    local pos = string.find(time, ":")
    if pos == nil then
        return nil, false
    end
    local h = tonumber(string.sub(time, 1, pos - 1))
    time = string.sub(time, pos + 1)
    pos = string.find(time, ":")
    if pos == nil then
        return nil, false
    end
    local m = tonumber(string.sub(time, 1, pos - 1))
    local s = tonumber(string.sub(time, pos + 1))
    return (h / 24.0 + m / 1440.0 + s / 86400.0), ((h >= 0 and h < 24 and m >= 0 and m < 60 and s >= 0 and s < 60) or -- time in ole format
        (h == 24 and m == 0 and s == 0)) -- validity flag
end

local init = false;
local line_pen = 1;
function Draw(stage, context)
    if stage ~= 2 then
        return;
    end
    if not init then
        init = true;
        context:createPen(line_pen, context:convertPenStyle(instance.parameters.line_style), instance.parameters.line_width, instance.parameters.line_color);
    end

    local from_bar = math.max(source:first(), context:firstBar());
    local to_bar = math.min(context:lastBar(), source:size() - 1);
    
    local date = source:date(from_bar);
    local to_date = source:date(to_bar);
    local d = math.ceil(date) + OpenTime;
    while (d < to_date) do
        local x = context:positionOfDate(d);
        context:drawLine(line_pen, x, context:top(), x, context:bottom());
        d = d + 1;
    end
end

function Update(period, mode)
end

-- Available @ https://fxcodebase.com/code/viewtopic.php?f=17&t=70321&sid=0a617afecd15e2772f8bd80e580133a6&start=10
--
-- ── Author ─────────────────────────────────────────────────────────────────────
-- Developed by: Mario Jemic
-- Email:        mario.jemic@gmail.com
-- Website:      https://mario-jemic.com
--
-- ── Support & Donations ────────────────────────────────────────────────────────
-- PayPal:        https://goo.gl/9Rj74e
-- Patreon:       https://tiny.cc/1ybwxz
-- BuyMeACoffee:  https://tiny.cc/bj7vxz
--
-- Crypto:
--  BTC : 16F5k43RXibTmna4np8bPVgmXM1CzjXFJJ
--  SOL : 3nh5rpUKopcYLNU4zGCdUFAkM3iRQq8VVUmuzVG6VDf2
--  ETH/BNB/USDT/XRP (ERC20 & BEP20): 0xe53aab6bc468a963a02d1319660ee60cf80fc8e7
--
-- ── Copyright ──────────────────────────────────────────────────────────────────
-- © 2025 Gehtsoft USA LLC — https://fxcodebase.com

-- 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.
--
-- This program 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/>.