#!/bin/sh
# Name: Install Kho Sách
# Author: mnd.vn
#
# One-tap installer: registers the MND package repository with KPM and
# installs (or updates) Kho Sách from it. Copy this single file into the
# Kindle's documents/ folder, eject, and tap it on the home screen.
#
# Tapping it again later upgrades to whatever version the repository
# currently offers, so it doubles as the update button.
#
# It needs KPM, which modern jailbreaks (hdnext / jb.sh) install as part of
# the hotfix, and Wi-Fi. Deliberately NOT marked DontUseFBInk: KPM's own
# progress output is what the user should see while it works.

REPO=https://kpm.mnd.vn/r
LOG=/mnt/us/khosach-install.log

# KPM's path differs between jailbreak generations, so look rather than
# assume, and say so plainly when it isn't there -- "command not found" on
# a Kindle screen explains nothing.
KPM=""
for candidate in /var/local/kmc/bin/kpm /mnt/us/kmc/bin/kpm $(command -v kpm 2>/dev/null); do
	if [ -x "$candidate" ]; then
		KPM=$candidate
		break
	fi
done

{
	date
	if [ -z "$KPM" ]; then
		echo "KPM was not found on this Kindle."
		echo "Kho Sách installs through KPM, which comes with current"
		echo "jailbreak setups (hdnext / jb.sh and the Universal Hotfix)."
		echo "Install KPM first, or use the manual .zip instead:"
		echo "  https://kpm.mnd.vn/"
		exit 1
	fi

	echo "Using $KPM"
	echo "Adding repository $REPO"
	"$KPM" -y add-repo "$REPO"

	echo "Installing Kho Sách"
	if "$KPM" -y install khosach; then
		echo
		echo "Done. Tap \"Kho Sách\" on the home screen."
		echo "Catalogs are configured in extensions/opds/feeds.conf."
	else
		echo
		echo "Install failed. Check Wi-Fi is on, then tap this again."
		echo "Details are in $LOG"
		exit 1
	fi
} 2>&1 | tee "$LOG"