Detect Symmetrical Triangles on Charts Automatically

describe_indicator('Triangle, Symmetrical', 'price', { decimals: 'by_symbol_+1', shortName: 'Triangle.Sym' });
 
const timeSpan = input('Time span', 'Short term', ['Short term', 'Long term']);
const showBands = input('Bands', 'No', ['No', 'Yes']);
const bandType = input('Band type', 'ATR', constants.band_types);
const bandLength = input('Band length', 10, { min: 2, max: 50 });
 
const multiplier = input('Band value', 0.33, { min: 0.01, max: 10 });
 
const timeSpanParameter = timeSpan == 'Short term' ? 'short' : 'long';
 
const { top, bottom } = find_triangle(timeSpanParameter, 'symmetrical');
 
paint(top, { name: 'Top', color: '#1e5879', thickness: 3 });
paint(bottom, { name: 'Bottom', color: '#1e5879', thickness: 3 });
 
const { upper: topUpper, lower: topLower } = showBands == 'Yes'
	? compute_band(top, bandType, multiplier, bandLength)
	: { upper: [], lower: [] };
 
fill(
	paint(topUpper, { name: 'Top/U', color: '#4289b3' }),
	paint(topLower, { name: 'Top/L', color: '#4289b3' }),
	'#1e5879'
);
 
const { upper: bottomUpper, lower: bottomLower } = showBands == 'Yes'
	? compute_band(bottom, bandType, multiplier, bandLength)
	: { upper: [], lower: [] };
 
fill(
	paint(bottomUpper, { name: 'Bot/U', color: '#4289b3' }),
	paint(bottomLower, { name: 'Bot/L', color: '#4289b3' }),
	'#1e5879'
);