#!/bin/bash

# expects:
# env variable FORGEJO_TOKEN
# file out_of_date

IFS='
'
repo=${downstream/*\/}

does_it_exist() {
	name=$1
	downstream_version=$2
	upstream_version=$3
	repo=$4

	query="$repo/$name: upgrade to $upstream_version"
	query="$(echo $query | sed 's| |%20|g' | sed 's|:|%3A|g' | sed 's|/|%2F|g' )"

	result="$(curl --silent -X 'GET' \
		"$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/issues?state=open&q=$query&type=issues" \
		-H 'accept: application/json' \
		-H "authorization: Basic $FORGEJO_TOKEN"
	)"

	if [ "$result" == "[]" ]; then
		return 1
	fi
}

is_it_old() {
	name=$1
	downstream_version=$2
	upstream_version=$3
	repo=$4

	query="$repo/$name: upgrade to"
	query="$(echo $query | sed 's| |%20|g' | sed 's|:|%3A|g' | sed 's|/|%2F|g' )"

	result="$(curl --silent -X 'GET' \
		"$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/issues?state=open&q=$query&type=issues" \
		-H 'accept: application/json' \
		-H "authorization: Basic $FORGEJO_TOKEN"
	)"

	result_title="$(echo $result | jq -r '.[].title' )"
	result_id="$(echo $result | jq -r '.[].number' )"
	result_upstream_version="$(echo $result_title | awk '{print $4}')"

	if [ "$upstream_version" != "$result_upstream_version" ]; then
		echo $result_id
	else
		echo 0
	fi
}

update_title() {
	name=$1
	downstream_version=$2
	upstream_version=$3
	repo=$4
	id=$5

	result=$(curl --silent -X 'PATCH' \
		"$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/issues/$id" \
		-H 'accept: application/json' \
		-H "authorization: Basic $FORGEJO_TOKEN" \
		-H 'Content-Type: application/json' \
		-d "{
			\"title\": \"$repo/$name: upgrade to $upstream_version\"
		}"
	)
	
	return 0
}

create_issue() {
	name=$1
	downstream_version=$2
	upstream_version=$3
	repo=$4

	result=$(curl --silent -X 'POST' \
		"$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/issues" \
		-H 'accept: application/json' \
		-H "authorization: Basic $FORGEJO_TOKEN" \
		-H 'Content-Type: application/json' \
		-d "{
			\"title\": \"$repo/$name: upgrade to $upstream_version\",
			\"labels\": [
				$LABEL_NUMBER
			]
		}")

	return 0
}

if [ -f out_of_date ]; then
	out_of_date="$(cat out_of_date)"

	echo "Detected $(wc -l out_of_date) out-of-date packages, creating issues"

	for pkg in $out_of_date; do
		name="$(echo $pkg | awk '{print $1}')"
		downstream_version="$(echo $pkg | awk '{print $2}')"
		upstream_version="$(echo $pkg | awk '{print $3}')"
		repo="$(echo $pkg | awk '{print $4}')"

		if does_it_exist $name $downstream_version $upstream_version $repo; then
			echo "Issue for $repo/$name already exists"
			continue
		fi

		id=$(is_it_old $name $downstream_version $upstream_version $repo)
	
		if [  "$id" != "0" ] && [ -n "$id" ]; then
			echo "Issue for $repo/$name needs updating"
			update_title $name $downstream_version $upstream_version $repo $id
			continue
		fi

		echo "Creating issue for $repo/$name"
		create_issue $name $downstream_version $upstream_version $repo
	done
fi

if [ -f not_in_anitya ]; then
	query="Add missing $repo packages to anitya"
	query="$(echo $query | sed 's| |%20|g')"

	result="$(curl --silent -X 'GET' \
		"$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/issues?state=open&q=$query&type=issues" \
		-H 'accept: application/json' \
		-H "authorization: Basic $FORGEJO_TOKEN"
	)"

	if [ "$result" == "[]" ]; then
		echo "Creating anitya issue"
		result=$(curl --silent -X 'POST' \
			"$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/issues" \
			-H 'accept: application/json' \
			-H "authorization: Basic $FORGEJO_TOKEN" \
			-H 'Content-Type: application/json' \
			-d "{
				\"title\": \"Add missing $repo packages to anitya\",
				\"body\": \"- [ ] $(sed '{:q;N;s/\n/\\n- [ ] /g;t q}' not_in_anitya)\",
				\"labels\": [
					$LABEL_NUMBER
				]
			}")

	else
		echo "Updating anitya issue"
		result_id="$(echo $result | jq -r '.[].number' )"
		result=$(curl --silent -X 'PATCH' \
			"$GITHUB_SERVER_URL/api/v1/repos/$GITHUB_REPOSITORY/issues/$result_id" \
			-H 'accept: application/json' \
			-H "authorization: Basic $FORGEJO_TOKEN" \
			-H 'Content-Type: application/json' \
			-d "{
				\"body\": \"- [ ] $(sed '{:q;N;s/\n/\\n- [ ] /g;t q}' not_in_anitya)\"
			}"
		)
	fi
fi