class_name GameOpts
extends RefCounted
## Process-wide options parsed from the command line.
##
## These are per-machine settings and must never affect the simulation -- if a
## value would change how the world evolves, it belongs in [SimConfig] so server
## and client cannot disagree about it.

static var is_server: bool = false
static var port: int = Protocol.DEFAULT_PORT
static var host_address: String = "127.0.0.1"
static var player_name: String = "player"
## Replaces keyboard input with a scripted loop so CI can play the game with no
## display. See `tools/smoke.sh`.
static var bot_client: bool = false
## Quit after this many physics ticks. 0 = run forever.
static var autoquit_ticks: int = 0
## Skip the menu and connect straight away. Implied by --bot.
static var autojoin: bool = false
## Bot harness only: gracefully disconnect after this many ticks inside a
## dungeon, the way the in-game menu's "Disconnect" button does. Lets the smoke
## test cover the clean-exit path as well as a hard kill -- both must be caught
## by the same server-side escape channel.
static var bot_leave_after: int = 0
## Skip the menu and start a listen server (host + local player).
static var listen: bool = false
## Server-side dev switch: new dungeons open straight onto the boss, skipping
## the trash waves. For iterating on a pattern without clearing two waves first.
static var boss_rush: bool = false
## Dev switch: depth of newly opened dungeons, which drives map size. Depth
## progression is a later-stage concern; this makes big maps testable now.
static var dungeon_depth: int = 1
## Override the local account id. Two clients on one machine would otherwise
## read the same user:// id file, land on the same account, and fight over one
## roster of characters -- which is exactly what the smoke test does. A real
## identity provider makes this unnecessary.
static var account_override: int = 0
## Where the server keeps characters. Overridable so a test run cannot read or
## write the characters someone is actually playing -- and so repeated runs
## start from a known state instead of resuming each other's progress.
static var store_path: String = CharacterStore.SAVE_PATH
static var parsed: bool = false


static func parse(argv: PackedStringArray = PackedStringArray()) -> void:
	if argv.is_empty():
		argv = OS.get_cmdline_user_args()
	var i := 0
	while i < argv.size():
		match argv[i]:
			"--server":
				is_server = true
			"--bot":
				bot_client = true
				autojoin = true
			"--join":
				autojoin = true
			"--leave-after":
				i += 1
				if i < argv.size():
					bot_leave_after = int(argv[i])
			"--listen":
				listen = true
			"--boss-rush":
				boss_rush = true
			"--account":
				i += 1
				if i < argv.size():
					account_override = int(argv[i])
			"--store":
				i += 1
				if i < argv.size():
					store_path = argv[i]
			"--depth":
				i += 1
				if i < argv.size():
					dungeon_depth = int(argv[i])
			"--port":
				i += 1
				if i < argv.size():
					port = int(argv[i])
			"--host":
				i += 1
				if i < argv.size():
					host_address = argv[i]
			"--name":
				i += 1
				if i < argv.size():
					player_name = argv[i]
			"--autoquit":
				i += 1
				if i < argv.size():
					autoquit_ticks = int(argv[i])
			"--verbose":
				GameLog.min_level = GameLog.Level.DEBUG
			"--quiet":
				GameLog.min_level = GameLog.Level.WARN
		i += 1
	GameLog.role_tag = "server" if is_server else "client"
	parsed = true