#!/bin/bash

if [ "$#" != "0" ]; then
	echo 'usage: termux-info'
	echo 'Provides information about Termux, and the current system. Helpful for debugging.'
	exit
fi

updates() {
	local updatable

	if [ "$(id -u)" = "0" ]; then
		echo "Running as root. Cannot check package updates."
	else
		if [ "$TERMUX_MAIN_PACKAGE_FORMAT" = "pacman" ]; then
			pacman -Sy >/dev/null 2>&1
			updatable=$(pacman -Qu)
		else
			apt update >/dev/null 2>&1
			updatable=$(apt list --upgradable 2>/dev/null | tail -n +2)
		fi

		if [ -z "$updatable" ];then
			echo "All packages up to date"
		else
			echo "$updatable"
		fi
	fi
}

repo_subscriptions_apt() {
	local main_sources
	main_sources=$(grep -P '^\s*deb\s' "@TERMUX_PREFIX@/etc/apt/sources.list")

	if [ -n "$main_sources" ]; then
		echo "# sources.list"
		echo "$main_sources"
	fi

	if [ -d "@TERMUX_PREFIX@/etc/apt/sources.list.d" ]; then
		local filename repo_package supl_sources
		while read -r filename; do
			repo_package=$(dpkg -S "$filename" 2>/dev/null | cut -d : -f 1)
			supl_sources=$(grep -P '^\s*deb\s' "$filename")

			if [ -n "$supl_sources" ]; then
				if [ -n "$repo_package" ]; then
					echo "# $repo_package (sources.list.d/$(basename "$filename"))"
				else
					echo "# sources.list.d/$(basename "$filename")"
				fi
				echo "$supl_sources"
			fi
		done < <(find "@TERMUX_PREFIX@/etc/apt/sources.list.d" -maxdepth 1 ! -type d)
	fi
}

repo_subscriptions_pacman() {
	local conf
	conf="@TERMUX_PREFIX@/etc/pacman.conf"

	if [[ -f $conf ]]; then
		echo "# $conf"
		for i in $(pacman-conf -l); do
			pacman-conf | grep "$i"
		done
	else
		echo "$conf file not found"
	fi
}

output=""

if [ -n "$TERMUX_VERSION" ]; then
# Application version is exported in Termux v0.107 or higher only.
output+="Termux Variables:
$(compgen -e TERMUX_ | while read v; do echo "${v}=${!v}"; done)
"
else
output+="Termux Variables:
unsupported
"
fi

output+="Packages CPU architecture:
$(
	if [ "$TERMUX_MAIN_PACKAGE_FORMAT" = "pacman" ]; then
		pacman-conf | grep Architecture | sed 's/Architecture = //g'
	else
		dpkg --print-architecture
	fi
)
Subscribed repositories:
$(
	if [ "$TERMUX_MAIN_PACKAGE_FORMAT" = "pacman" ]; then
		repo_subscriptions_pacman
	else
		repo_subscriptions_apt
	fi
)
Updatable packages:
$(updates)
Android version:
$(getprop ro.build.version.release)
Kernel build information:
$(uname -a)
Device manufacturer:
$(getprop ro.product.manufacturer)
Device model:
$(getprop ro.product.model)"
echo "$output"

if [ -n "$(command -v termux-clipboard-set)" ]; then
	# Copy to clipboard (requires termux-api)
	# use timeout in case termux-api is installed but the termux:api app is missing
	echo "$output" | timeout 3 termux-clipboard-set 2>/dev/null
	timeout 3 termux-toast "Information has been copied to the clipboard" 2>/dev/null
fi

exit 0