--[[

This file is only loaded when the game is launched with the "--luadebug" launch option.
This allows mods to have access to your computer's files, which is necessary to read glitched item info that's printed to the game's log file.

Having --luadebug on would allow malicious mods to delete your files, execute command prompt commands, and probably much more.
USE AT YOUR OWN RISK.

]]

local game = Game()

-- glitched items start at 4294967295
local maxNumber = 4294967296
local spawnedItems = 0
local lastEffectTrigger = "chain"
local descOne = ""

local logLocation = os.getenv("SYSTEMDRIVE") .. "/Users/" .. os.getenv("USERNAME") .. "/Documents/My Games/Binding of Isaac Repentance/log.txt"
local logFound = false
local logCursor = 0

local triggerColors = {
	chain = "{{ColorSilver}}",
	active = "{{ColorLime}}",
	pickup_collected = "{{ColorYellow}}",
	enemy_kill = "{{ColorRed}}",
	damage_taken = "{{ColorRed}}",
	entity_spawned = "",
	tear_fire = "{{ColorCyan}}",
	enemy_hit = "{{ColorEIDError}}",
	room_clear = "{{ColorOrange}}",
}

local function entityToName(e, plural)
	local localizedNames = EID:getDescriptionEntry("GlitchedItemText")
	-- -1 is often used as an "any of this type", even if there's only one of that type, so converting it to 0 can help find names
	local eWithZero = string.gsub(e, "-1", "0")
	plural = plural or false
	local name = localizedNames[e] or EID.XMLEntityNames[e] or localizedNames[eWithZero] or EID.XMLEntityNames[eWithZero] or e
	
	--print out entities with no name yet
	if name == e then Isaac.DebugString("No name found for " .. e .. " (could be modded)")
	elseif plural then name = name .. localizedNames["pluralize"] end
	
	return name
end

local function parseEffectLine(raw)
	local words = {}
	for w in string.gmatch(raw,"%S+") do table.insert(words, w) end
	
	local triggerReplacements = {}
	local replacements = {}
	local printEffect = true
	
	-- words[1] = "[INFO]", words[2] = "-"
	local effectTrigger = words[3]
	if (string.find(effectTrigger, "entity_spawned")) then
		effectTrigger = "entity_spawned"
		triggerReplacements[1] = "{{ColorEIDObjName}}" .. entityToName(string.sub(words[3], 16, -2)) .. "{{CR}}"
	end
	-- words[4] = "->"
	local effectType = words[5]
	local fullEffect = ""
	for i=5,#words do fullEffect = fullEffect .. words[i] .. " " end
	
	if effectType == "add_temporary_effect" or effectType == "use_active_item" then
		-- remainder of line = collectible name that's granted for the room
		local name = ""
		for i=6,#words do
			name = name .. words[i]
			if (i ~= #words) then name = name .. " " end
		end
		
		replacements[1] = "{{Collectible" .. Isaac.GetItemIdByName(name) .. "}} " .. name
	elseif effectType == "convert_entities" then
		replacements[1] = "{{ColorGray}}" .. entityToName(words[6], true) .. "{{CR}}"
		replacements[2] = "{{ColorGray}}" .. entityToName(words[8])
	elseif effectType == "spawn_entity" then
		replacements[1] = "{{ColorGray}}" .. entityToName(words[6])
	elseif effectType == "fart" then
		replacements[1] = words[6]
	elseif effectType == "area_damage" then
		replacements[1] = words[6]
		-- display area_damage 0's because they still need to be done to chain to the next thing
		--if words[6] == "0" then printEffect = false end
	end
	
	local localizedNames = EID:getDescriptionEntry("GlitchedItemText")
	local eidString = ""
	if effectTrigger ~= lastEffectTrigger then eidString = eidString .. triggerColors[effectTrigger] .. (localizedNames[effectTrigger] or (effectTrigger .. "#")) end
	if printEffect then eidString = eidString .. (localizedNames[effectType] or fullEffect) .. "#" end
	for k,v in ipairs(triggerReplacements) do eidString = string.gsub(eidString, "{T" .. k .. "}", v) end
	for k,v in ipairs(replacements) do eidString = string.gsub(eidString, "{" .. k .. "}", v) end
	
	if effectTrigger ~= "chain" then lastEffectTrigger = effectTrigger end
	return eidString
end

local function CheckLogForItems(_)
	-- Check log.txt every 5 frames if there's a collectible we haven't read the data for yet
	-- (Should work well for Corrupted Data)
	if game:GetFrameCount() % 5 ~= 0 or not EID.Config["DisplayGlitchedItemInfo"] or not logFound or
		Isaac.GetItemConfig():GetCollectible(maxNumber - spawnedItems - 1) == nil then return end
		
	local numEffects = 0
	local itemScore = 0
	local eidDesc = ""
	
	local theLog = io.open(logLocation, "r")
	theLog:seek("set", logCursor)
	
	local line = theLog:read()
	while line ~= nil do
		if string.find(line, "initialized with") then
			local count = 0
			spawnedItems = spawnedItems + 1
			lastEffectTrigger = "chain"
			eidDesc = ""
			-- find the number of effects to watch for
			for s in string.gmatch(line, "%d*%.?%d+") do
				numEffects = tonumber(s)
				break
			end
		elseif numEffects > 0 then
			numEffects = numEffects - 1
			eidDesc = eidDesc .. parseEffectLine(line)
			if numEffects == 0 then
				-- Glowing Hour Glass type effects seem to cause the game to reload all items, check if our desc is equal to the first one
				if (descOne == eidDesc) then spawnedItems = 1 end
				
				eidDesc = EID:CheckGlitchedItemConfig(maxNumber - spawnedItems) .. eidDesc
				EID:addCollectible(maxNumber - spawnedItems, eidDesc)
				if spawnedItems == 1 then descOne = eidDesc end
			end
		elseif string.find(line, "Game ended;") then
			spawnedItems = 0
			lastEffectTrigger = "chain"
			eidDesc = ""
		end

		line = theLog:read()
	end
	
	logCursor = theLog:seek()
	theLog:close()
end
EID:AddCallback(ModCallbacks.MC_POST_UPDATE, CheckLogForItems)

local function GameStartTMTRAINER(_,isSave)
	local theLog = io.open(logLocation, "r")
	if (theLog == nil) then
		print("[EID] Could not find the log file at " .. logLocation .. "; glitched item descriptions won't work!")
		Isaac.DebugString("[EID] Could not find the log file at " .. logLocation .. "; glitched item descriptions won't work!")
		logFound = false
		return
	else
		logFound = true
	end
	
	-- luckily, when the game reloads, it also reloads all glitched items, so resuming works perfectly as long as we start at the beginning
	spawnedItems = 0
end
EID:AddCallback(ModCallbacks.MC_POST_GAME_STARTED, GameStartTMTRAINER)

local function GameEndTMTRAINER()
	-- Our cursor spot in the log gets wiped if mods are reloaded; can't think of a better way than this
	Isaac.DebugString("[EID] Game ended; ignore previous glitched items in the log!")
end
EID:AddCallback(ModCallbacks.MC_PRE_GAME_EXIT, GameEndTMTRAINER)