#!/bin/bash

	for GITEALOCALAPPBIN in "/opt/gitea/app/bin" "./app/bin" "../../app/bin"; do
		# echo ${GITEALOCALAPPBIN}
		if [ -d "${GITEALOCALAPPBIN}" ]; then
			break
		fi
	done

	if [ ! -d "${GITEALOCALAPPBIN}" ]; then
		echo "Directory ${GITEALOCALAPPBIN} not found"
		exit 1
	fi

	if [ x"$1" == x"--self-install" ]; then
		ln -s "../../gitea-loader/gitea-loader.sh" "${GITEALOCALAPPBIN}/gitea-loader.sh" && {
			echo "Success installed ${GITEALOCALAPPBIN}/gitea-loader.sh"
			exit 0
		} || {
			exit 1
		}
	fi

	jq --version > /dev/null 2>&1 || {
		echo "Command jq not found"
		exit 1
	}


	GITEALATESTVERSION="$(curl https://dl.gitea.com/gitea/version.json 2>/dev/null | jq -r .latest.version)"

	#GITEALATESTVERSION="1.20"

	GITEALATESTFILE="gitea-${GITEALATESTVERSION}-linux-amd64"
	GITEALATESTURLXZ="https://dl.gitea.com/gitea/${GITEALATESTVERSION}/${GITEALATESTFILE}.xz"
	GITEALATESTURLXZASC="https://dl.gitea.com/gitea/${GITEALATESTVERSION}/${GITEALATESTFILE}.xz.asc"

	while true; do
		if [ -f "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.xz" ]; then
			echo "Gitea version ${GITEALATESTVERSION} exists"
			exit 0
		fi

	#	gpg --keyserver keys.openpgp.org --recv 7C9E68152594688862D62AF62D9AE806EC1592E2

	#	gpg --verify gitea-1.20-linux-amd64.xz.asc gitea-1.20-linux-amd64.xz && {
	#		echo ok
	#	} || {
	#		echo no
	#	}

		break
	done

	if [ x"${GITEALATESTVERSION}" = x"" ]; then
		echo "Empty GITEALATESTVERSION"
		exit 1
	fi

	echo "Download gitea version ${GITEALATESTVERSION}"

	curl "${GITEALATESTURLXZ}" 2>/dev/null > "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.xz.part" && {
		echo "Success"
		mv "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.xz.part" "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.xz"
	} || {
		echo "Failed"
		rm -vf "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.xz.part"
		exit 1
	}

	echo "Extract gitea version ${GITEALATESTVERSION}"

	xz -cd "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.xz" > "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.part" && {
		echo "Success"
		mv "${GITEALOCALAPPBIN}/${GITEALATESTFILE}.part" "${GITEALOCALAPPBIN}/${GITEALATESTFILE}"
	} || {
		echo "Failed"
		rm -vf "${GITEALOCALAPPBIN}/${GITEALATESTFILE}"
		exit 1
	}

	chmod +x "${GITEALOCALAPPBIN}/${GITEALATESTFILE}"


	curl \
		-L \
		-H "Accept: application/vnd.github+json" \
		-H "X-GitHub-Api-Version: 2022-11-28" \
		"https://api.github.com/repos/go-gitea/gitea/releases?per_page=15" \
		> "gitea-releases.json" 2>/dev/null || {
			exit 1
	}

	for x in {3..15}; do
		GITEAVERSION="$(cat gitea-releases.json | jq -r ".[$x].tag_name" | grep -aoE '[0-9]+\.[0-9]+\.[0-9]+')"

		GITEABIN="--"
		GITEARCH="--"

		GITEABINFILE="${GITEALOCALAPPBIN}/gitea-${GITEAVERSION}-linux-amd64"
		GITEARCHFILE="${GITEALOCALAPPBIN}/gitea-${GITEAVERSION}-linux-amd64.xz"

		if [ -f "${GITEABINFILE}" ]; then
			GITEABIN="OK"
		fi

		if [ -f "${GITEARCHFILE}" ]; then
			GITEARCH="OK"
		fi

		# echo ${GITEAVERSION} ${GITEABIN} ${GITEAARCH}

		if [ x"${GITEABIN}" = x"OK" ]; then
			echo rm "${GITEABINFILE}"
		fi

		if [ $x -gt 7 -a x"${GITEARCH}" = x"OK" ]; then
			echo rm "${GITEARCHFILE}"
		fi
	done