package ErrorHandling
import NoWurst
import PrintingHelper
import MagicFunctions
import Table
import GameTimer
import Real

constant MUTE_ERROR_DURATION = 60
constant PRIMARY_ERROR_KEY = -1

/** error handing function.
This function is used by libraries and for internal Wurst errors like
accessing a null-pointer. Overwrite this function to customize error handling.

Outputs an error message and terminates the current thread.
There is a compiler flag to augment the error messages with stack traces.
Error messages can also be disabled.
*/
@configurable public function error(string msg)
	let hash = StringHash(msg)
	if Table.ht.hasInt(PRIMARY_ERROR_KEY, hash)
		// Error has been printed before
		if Table.ht.loadInt(PRIMARY_ERROR_KEY, hash) + MUTE_ERROR_DURATION < currentTime
			// Time to print the error again
			print("|cffFF3A29Error:|r " + msg + getStackTraceString())
			Table.ht.saveInt(PRIMARY_ERROR_KEY, hash, currentTime.toInt())
			Table.ht.saveBoolean(PRIMARY_ERROR_KEY, hash, false)
		else if Table.ht.hasBoolean(PRIMARY_ERROR_KEY, hash)
			if not Table.ht.loadBoolean(PRIMARY_ERROR_KEY, hash)
				print("|cffFF3A29Excessive repeating errors are being omitted")
				Table.ht.saveBoolean(PRIMARY_ERROR_KEY, hash, true)
		else
			print("|cffFF3A29Excessive repeating errors are being omitted")
			Table.ht.saveBoolean(PRIMARY_ERROR_KEY, hash, true)
			//
	else
		Table.ht.saveInt(PRIMARY_ERROR_KEY, hash, currentTime.toInt())
		print("|cffFF3A29Error:|r " + msg + getStackTraceString())
	// crash the thread:
	I2S(1 div 0)