Ichimoku Scan

[csricksdds]

Good morning! I don't do any scanning but am trying to develop a custom scan for my Ichimoku Simplified as follows (but it's not working for me). The goal is to show if Ichi-L or Ichi-S in place on a stock and for how many bars. Can someone help?

input t_period = 9;
input k_period = 26;
input sb_period = 52;
input max_bars = 10;

def tenkan = (Highest(high, t_period) + Lowest(low, t_period)) / 2;
def kijun = (Highest(high, k_period) + Lowest(low, k_period)) / 2;

def span_a = (tenkan + kijun) / 2;
def span_b = (Highest(high, sb_period) + Lowest(low, sb_period)) / 2;

def cloud_top = Max(span_a, span_b);
def cloud_bottom = Min(span_a, span_b);
def cloud_bull = span_a >= span_b;

def tk_bull_cross = tenkan crosses above kijun;
def tk_bear_cross = tenkan crosses below kijun;

def price_above = close > cloud_top;
def price_below = close < cloud_bottom;

def chikou_above = close > close[k_period];
def chikou_below = close < close[k_period];

def long_signal = tk_bull_cross and price_above and chikou_above and cloud_bull;
def short_signal = tk_bear_cross and price_below and chikou_below and !cloud_bull;

def in_long;
def in_short;
def long_entry_bar;
def short_entry_bar;

if long_signal {
in_long = 1;
in_short = 0;
long_entry_bar = BarNumber();
short_entry_bar = 0;
} else if short_signal {
in_long = 0;
in_short = 1;
long_entry_bar = 0;
short_entry_bar = BarNumber();
} else if in_long[1] and !short_signal {
in_long = 1;
in_short = 0;
long_entry_bar = long_entry_bar[1];
short_entry_bar = 0;
} else if in_short[1] and !long_signal {
in_long = 0;
in_short = 1;
long_entry_bar = 0;
short_entry_bar = short_entry_bar[1];
} else {
in_long = 0;
in_short = 0;
long_entry_bar = 0;
short_entry_bar = 0;
}

def bars_in_trade;
if in_long {
bars_in_trade = BarNumber() - long_entry_bar + 1;
} else if in_short {
bars_in_trade = BarNumber() - short_entry_bar + 1;
} else {
bars_in_trade = 0;
}

def active_long = in_long and bars_in_trade <= max_bars;
def active_short = in_short and bars_in_trade <= max_bars;

plot scan = if active_long then bars_in_trade
else if active_short then -bars_in_trade
else 0;

scan.SetDefaultColor(Color.WHITE);

scan.DefineColor("Ichi_L", Color.GREEN);
scan.DefineColor("Ichi_S", Color.RED);
scan.DefineColor("Neutral", Color.YELLOW);

scan.AssignValueColor(
if active_long then scan.color("Ichi_L")
else if active_short then scan.color("Ichi_S")
else scan.color("Neutral")
);