#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers
# Load common variables for all scripts.
source _variables

#=================================================
# RETRIEVE ARGUMENTS
#=================================================

app=$YNH_APP_ID

final_path=$(ynh_app_setting_get $app final_path)

#=================================================
# SPECIFIC CODE
#=================================================
# DECLARE GENERIC FUNCTION
#=================================================

config_file="$final_path/settings.json"

get_config_value() {
	option_name="$1"
	# Get the value of this option in the config file
	grep "\"$option_name\" *:" "$config_file" | cut -d':' -f2 | sed s'/ //g' | cut -d',' -f1

}

#=================================================
# LOAD VALUES
#=================================================

	# Load the real value from the app config or elsewhere.
	# Then get the value from the form.
	# If the form has a value for a variable, take the value from the form,
	# Otherwise, keep the value from the app config.

	# Export
	old_export="$(ynh_app_setting_get $app export)"
	export="${YNH_CONFIG_MAIN_EXPORT_EXPORT:-$old_export}"

	# padOptions noColors
	old_pad_config_nocolors="$(get_config_value noColors)"
	pad_config_nocolors="${YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_NOCOLORS:-$old_pad_config_nocolors}"
	# padOptions showLineNumbers
	old_pad_config_showlinenumbers="$(get_config_value showLineNumbers)"
	pad_config_showlinenumbers="${YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_SHOWLINENUMBERS:-$old_pad_config_showlinenumbers}"
	# padOptions chatAndUsers
	old_pad_config_chatandusers="$(get_config_value chatAndUsers)"
	pad_config_chatandusers="${YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_CHATANDUSERS:-$old_pad_config_chatandusers}"
	# padOptions alwaysShowChat
	old_pad_config_alwaysshowchat="$(get_config_value alwaysShowChat)"
	pad_config_alwaysshowchat="${YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_ALWAYSSHOWCHAT:-$old_pad_config_alwaysshowchat}"
	# Plugin option ep_markdown_default
	old_pad_config_show_markdown="$(get_config_value ep_markdown_default)"
	pad_config_show_markdown="${YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_SHOW_MARKDOWN:-$old_pad_config_show_markdown}"
	# Plugin option ep_page_view_default
	old_pad_config_pageview="$(get_config_value ep_page_view_default)"
	pad_config_pageview="${YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_PAGEVIEW:-$old_pad_config_pageview}"

	# Mypads
	if [ -d $final_path/node_modules/ep_mypads ]
	then
		old_mypads=true
	else
		old_mypads=false
	fi
	mypads="${YNH_CONFIG_MAIN_MYPADS_CONFIGURATION_MYPADS:-$old_mypads}"
	# Ldap for Mypads
	if grep -q "//noldap" $config_file
	then
		old_useldap=false
	else
		old_useldap=true
	fi
	useldap="${YNH_CONFIG_MAIN_MYPADS_CONFIGURATION_USELDAP:-$old_useldap}"

	# is_public
	old_is_public="$(ynh_app_setting_get $app is_public)"
	if [ $old_is_public -eq 1 ]
	then
		old_is_public=true
	else
		old_is_public=false
	fi
	is_public="${YNH_CONFIG_MAIN_IS_PUBLIC_IS_PUBLIC:-$old_is_public}"

#=================================================
# SHOW_CONFIG FUNCTION FOR 'SHOW' COMMAND
#=================================================

show_config() {
	# here you are supposed to read some config file/database/other then print the values
	# echo "YNH_CONFIG_${PANEL_ID}_${SECTION_ID}_${OPTION_ID}=value"

	echo "YNH_CONFIG_MAIN_EXPORT_EXPORT=$export"

	echo "YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_NOCOLORS=$pad_config_nocolors"
	echo "YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_SHOWLINENUMBERS=$pad_config_showlinenumbers"
	echo "YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_CHATANDUSERS=$pad_config_chatandusers"
	echo "YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_ALWAYSSHOWCHAT=$pad_config_alwaysshowchat"
	echo "YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_SHOW_MARKDOWN=$pad_config_show_markdown"
	echo "YNH_CONFIG_MAIN_PAD_CONFIGURATION_PAD_CONFIG_PAGEVIEW=$pad_config_pageview"

	echo "YNH_CONFIG_MAIN_MYPADS_CONFIGURATION_MYPADS=$mypads"
	echo "YNH_CONFIG_MAIN_MYPADS_CONFIGURATION_USELDAP=$useldap"

	echo "YNH_CONFIG_MAIN_IS_PUBLIC_IS_PUBLIC=$is_public"
}

#=================================================
# MODIFY THE CONFIGURATION
#=================================================

apply_config() {
	restart_etherpad=0

	# Change configuration if needed
	# padOptions noColors
	if [ "$pad_config_nocolors" != "$old_pad_config_nocolors" ]
	then
		ynh_replace_string "\(\"noColors\" *: \).*," "\1$pad_config_nocolors," "$config_file"
		restart_etherpad=1
	fi

	# padOptions showLineNumbers
	if [ "$pad_config_showlinenumbers" != "$old_pad_config_showlinenumbers" ]
	then
		ynh_replace_string "\(\"showLineNumbers\" *: \).*," "\1$pad_config_showlinenumbers," "$config_file"
		restart_etherpad=1
	fi

	# padOptions chatAndUsers
	if [ "$pad_config_chatandusers" != "$old_pad_config_chatandusers" ]
	then
		ynh_replace_string "\(\"chatAndUsers\" *: \).*," "\1$pad_config_chatandusers," "$config_file"
		restart_etherpad=1
	fi

	# padOptions alwaysShowChat
	if [ "$pad_config_alwaysshowchat" != "$old_pad_config_alwaysshowchat" ]
	then
		ynh_replace_string "\(\"alwaysShowChat\" *: \).*," "\1$pad_config_alwaysshowchat," "$config_file"
		restart_etherpad=1
	fi

	# Plugin option ep_markdown_default
	if [ "$pad_config_show_markdown" != "$old_pad_config_show_markdown" ]
	then
		ynh_replace_string "\(\"ep_markdown_default\" *: \).*," "\1$pad_config_show_markdown," "$config_file"
		restart_etherpad=1
	fi

	# Plugin option ep_page_view_default
	if [ "$pad_config_pageview" != "$old_pad_config_pageview" ]
	then
		ynh_replace_string "\(\"ep_page_view_default\" *: \).*," "\1$pad_config_pageview," "$config_file"
		restart_etherpad=1
	fi

	# Export
	if [ "$export" != "$old_export" ]
	then
		if [ "$export" = "abiword" ]
		then
			# if abiword isn't installed, call the action add_remove_abiword.
			if ! which abiword > /dev/null
			then
				yunohost app action run $app add_remove_abiword
			fi
			ynh_replace_string "\(\"abiword\" *: \).*," "\1\"$(which abiword)\"," "$config_file"
			ynh_replace_string "\(\"soffice\" *: \).*," "\1null," "$config_file"
		elif [ "$export" = "libreoffice" ]
		then
			# if libreoffice isn't installed, call the action add_remove_libreoffice.
			if ! which soffice > /dev/null
			then
				yunohost app action run $app add_remove_libreoffice
			fi
			ynh_replace_string "\(\"abiword\" *: \).*," "\1null," "$config_file"
			ynh_replace_string "\(\"soffice\" *: \).*," "\1\"$(which soffice)\"," "$config_file"
		else
			ynh_replace_string "\(\"abiword\" *: \).*," "\1null," "$config_file"
			ynh_replace_string "\(\"soffice\" *: \).*," "\1null," "$config_file"
		fi
		restart_etherpad=1
	fi

	# Mypads
	if [ "$mypads" != "$old_mypads" ]
	then
		ynh_use_nodejs
		pushd "$final_path"
		if [ "$mypads" = "true" ]
		then
			npm install ep_mypads@${mypads_version}
		else
			npm uninstall ep_mypads
		fi
		popd
		chown -R $app: $final_path/node_modules
		restart_etherpad=1
	fi

	# Ldap for Mypads
	if [ "$useldap" != "$old_useldap" ]
	then
		if [ "$useldap" = "true" ]
		then
			ynh_replace_string "//noldap\(.*\)" "\1 //useldap" "$final_path/settings.json"
		else
			ynh_replace_string "\(.*\) //useldap" "//noldap\1" "$final_path/settings.json"
		fi
		restart_etherpad=1
	fi


	if [ $restart_etherpad -eq 1 ]
	then
		# Wait for etherpad to be fully started
		ynh_check_starting "You can access your Etherpad instance at" "/var/log/$app/etherpad.log" "120"
	fi

	# Change public accessibility
	if [ "$is_public" = "true" ]
	then
		is_public=1
	else
		is_public=0
	fi
	if [ $is_public -eq 1 ]; then
		ynh_app_setting_set $app skipped_uris "/"
	else
		ynh_app_setting_set $app skipped_uris "/admin"	# etherpad admin page doesn't support SSO...
	fi
	ynh_app_setting_set $app is_public $is_public
	yunohost app ssowatconf
}

#=================================================
# GENERIC FINALIZATION
#=================================================
# SELECT THE ACTION FOLLOWING THE GIVEN ARGUMENT
#=================================================

case $1 in
  show) show_config;;
  apply) apply_config;;
esac