# boot_env -- Sets various openMSX settings based from environment variables.
#
# Typically used in automation tools which run openMSX without human interaction.
#
# Adds the following command to openMSX;
#
# 'boot_gui_mode'
# Enableds the renderer and throttle from the inside.
#
# Supported environment variables by this script;
#
# RENDERER=on|off
# Override video output from command line.
#
# RENDERER_TYPE=SDL
# Select video renderer type.
#
# SCALE_FACTOR=3
# Override video scale factor for SDL renderer.
#
# THROTTLE=off
# Disables msx speed emulation.
#
# SPEED=400
# Sets msx speed to 4x of original but only when throttle is on.
#
# JOYPORTA=mouse
# Inserts mouse in joyporta.
#
# JOYPORTB=mouse
# Inserts mouse in joyportb.
#
# RECORDER=bin/output.avi
# Enables the the video recorder.
#

# Enabled openMSX gui from inside
proc boot_gui_mode {} {
	global renderer
	global throttle
	global boot_env_renderer_type
	if {$boot_env_renderer_type != 0} {
		set renderer $boot_env_renderer_type
		set throttle on
	} else {
		puts stderr "error: Requested boot_gui_mode but env.RENDERER_TYPE is missing."
		exit 1
	}
}

# Globals
set boot_env_renderer_type 0

if {[info exists ::env(RENDERER_TYPE)] && ([string trim $::env(RENDERER_TYPE)] != "")} {
	set boot_env_renderer_type [string trim $::env(RENDERER_TYPE)]
}

if {[info exists ::env(RENDERER)] && ([string trim $::env(RENDERER)] == "on")} {
	if {[catch {set renderer $boot_env_renderer_type} err_msg]} {
		puts stderr "error: env.RENDERER value $err_msg"
		exit 1
	}
}

if {[info exists ::env(SCALE_FACTOR)] && ([string trim $::env(SCALE_FACTOR)] != "")} {
	if {[catch {set scale_factor [string trim $::env(SCALE_FACTOR)]} err_msg]} {
		puts stderr "error: env.SCALE_FACTOR value $err_msg"
		exit 1
	}
}

if {[info exists ::env(THROTTLE)] && ([string trim $::env(THROTTLE)] != "")} {
	if {[catch {set throttle [string trim $::env(THROTTLE)]} err_msg]} {
		puts stderr "error: env.THROTTLE value $err_msg"
		exit 1
	}
}

if {[info exists ::env(SPEED)] && ([string trim $::env(SPEED)] != "")} {
	if {[catch {set speed [string trim $::env(SPEED)]} err_msg]} {
		puts stderr "error: env.SPEED value $err_msg"
		exit 1
	}
}

if {[info exists ::env(JOYPORTA)] && ([string trim $::env(JOYPORTA)] != "")} {
	if {[catch {plug joyporta [string trim $::env(JOYPORTA)]} err_msg]} {
		puts stderr "error: env.JOYPORTA value $err_msg"
		exit 1
	}
}

if {[info exists ::env(JOYPORTB)] && ([string trim $::env(JOYPORTB)] != "")} {
	if {[catch {plug joyportb [string trim $::env(JOYPORTB)]} err_msg]} {
		puts stderr "error: env.JOYPORTB value $err_msg"
		exit 1
	}
}

if {[info exists ::env(RECORDER)] && ([string trim $::env(RECORDER)] != "")} {
	if {[catch {after time 1 "record start [string trim $::env(RECORDER)]"} err_msg]} {
		puts stderr "error: env.RECORDER value $err_msg"
		exit 1
	}
}