gamepads_merge.script

print("This is a utility project to help with merging two *.gamepads files together.")
print("Make sure the two gamepads files are located in the root of the project (next to game.project)")
print("Set their paths in gamepads_merge.script")
print("")
print("Running utility...")

--------
local original = "8bitskull_master_gamepads.gamepads"
local additions = "default.gamepads"
--------

print("Comparing", original, "to", additions)
print("")

local function load_file(file_path)
    local file = io.open(file_path, "r")
    if not file then
        return nil
    end

	local result = {}

	if file then
		-- Iterate over the lines using io.lines iterator
		local device
		local platform
		for line in file:lines() do
			-- Process each line here

			if string.find(line, "device:") then
				device = line
				device = string.gsub(device, "%s+", " ")
				device = string.gsub(device, "device:", "")
				device = string.gsub(device, '"', "")
			end

			if string.find(line, "platform:") then
				platform = line
				platform = string.gsub(platform, "%s+", " ")
				platform = string.gsub(platform, "platform:", "")
				platform = string.gsub(platform, '"', "")
			end

			if device and platform then
				table.insert(result, {device = device, platform = platform})
				device = nil
				platform = nil
			end
		end

		-- Close the file when done
		file:close()
	else
		print("Failed to open file:", file_path)
	end

	return result
end

local function find_new_additions(t1, t2)
    local new_additions = {}

    for _, entry2 in ipairs(t2) do
        local found = false

        for _, entry1 in ipairs(t1) do
            if entry1.platform == entry2.platform and entry1.device == entry2.device then
                found = true
                break
            end
        end

        if not found then
            table.insert(new_additions, { platform = entry2.platform, device = entry2.device })
        end
    end

    return new_additions
end

local function find_duplicates(tbl)
    local seen = {}
    local duplicates = {}

    for _, entry in ipairs(tbl) do
        local key = entry.platform .. ":" .. entry.device
        if seen[key] then
            table.insert(duplicates, entry)
        else
            seen[key] = true
        end
    end

    return duplicates
end

local original_output = load_file(original)
local additions_output = load_file(additions)

local new_additions = find_new_additions(original_output, additions_output)

print("New gamepads entries that need to be added:")
if #new_additions == 0 then
	print("(None found!)")
else
	pprint(new_additions)
end

print("")

local duplicates = find_duplicates(original_output)
print("Checking for duplicates in ", original)
if #duplicates == 0 then
	print("(None found!)")
else
	pprint(duplicates)
end