#!/bin/sh
# RPCD backend for Metabolizer CMS LuCI app

. /lib/functions.sh

# Helpers
json_output() {
	echo "$1"
}

get_status() {
	local enabled running cms_running post_count draft_count
	local gitea_connected hexo_running

	# Check metabolizer enabled
	enabled=$(uci -q get metabolizer.main.enabled || echo "0")

	# Check Streamlit CMS app
	if pgrep -f "streamlit.*metabolizer" >/dev/null 2>&1; then
		cms_running="true"
	else
		cms_running="false"
	fi

	# Check Hexo
	if lxc-info -n hexojs -s 2>/dev/null | grep -q "RUNNING"; then
		hexo_running="true"
	else
		hexo_running="false"
	fi

	# Check Gitea
	if lxc-info -n gitea -s 2>/dev/null | grep -q "RUNNING"; then
		gitea_connected="true"
	else
		gitea_connected="false"
	fi

	# Count posts/drafts
	local content_path=$(uci -q get metabolizer.content.repo_path || echo "/srv/metabolizer/content")
	post_count=0
	draft_count=0
	if [ -d "$content_path/_posts" ]; then
		post_count=$(ls -1 "$content_path/_posts/"*.md 2>/dev/null | wc -l)
	fi
	if [ -d "$content_path/_drafts" ]; then
		draft_count=$(ls -1 "$content_path/_drafts/"*.md 2>/dev/null | wc -l)
	fi

	cat <<EOF
{
	"enabled": $([ "$enabled" = "1" ] && echo "true" || echo "false"),
	"cms_running": $cms_running,
	"hexo_running": $hexo_running,
	"gitea_connected": $gitea_connected,
	"post_count": $post_count,
	"draft_count": $draft_count,
	"cms_url": "http://$(uci -q get network.lan.ipaddr || echo "192.168.1.1"):8501",
	"blog_url": "/blog/"
}
EOF
}

list_posts() {
	local content_path=$(uci -q get metabolizer.content.repo_path || echo "/srv/metabolizer/content")
	local posts_dir="$content_path/_posts"

	echo "["
	local first=1
	if [ -d "$posts_dir" ]; then
		for f in "$posts_dir"/*.md; do
			[ -f "$f" ] || continue
			local filename=$(basename "$f")
			local slug="${filename%.md}"
			local title=$(grep -m1 "^title:" "$f" 2>/dev/null | sed 's/^title:[[:space:]]*//' | tr -d '"' | tr -d "'")
			local date=$(grep -m1 "^date:" "$f" 2>/dev/null | sed 's/^date:[[:space:]]*//')

			[ "$first" = "1" ] || echo ","
			first=0
			echo "  {\"slug\": \"$slug\", \"title\": \"$title\", \"date\": \"$date\"}"
		done
	fi
	echo "]"
}

gitea_status() {
	local content_path=$(uci -q get metabolizer.content.repo_path || echo "/srv/metabolizer/content")

	local has_repo="false"
	local last_sync=""
	local branch=""

	if [ -d "$content_path/.git" ]; then
		has_repo="true"
		cd "$content_path"
		last_sync=$(git log -1 --format="%ci" 2>/dev/null || echo "never")
		branch=$(git branch --show-current 2>/dev/null || echo "unknown")
	fi

	cat <<EOF
{
	"has_repo": $has_repo,
	"last_sync": "$last_sync",
	"branch": "$branch"
}
EOF
}

do_sync() {
	metabolizerctl sync 2>&1
	echo '{"status": "ok"}'
}

do_build() {
	metabolizerctl build 2>&1
	echo '{"status": "ok"}'
}

do_publish() {
	metabolizerctl publish 2>&1
	echo '{"status": "ok"}'
}

do_gitea_sync() {
	hexoctl gitea sync 2>&1
	echo '{"status": "ok"}'
}

# RPCD interface
case "$1" in
	list)
		cat <<EOF
{
	"status": {},
	"list_posts": {},
	"gitea_status": {},
	"sync": {},
	"build": {},
	"publish": {},
	"gitea_sync": {}
}
EOF
		;;
	call)
		case "$2" in
			status)       get_status ;;
			list_posts)   list_posts ;;
			gitea_status) gitea_status ;;
			sync)         do_sync ;;
			build)        do_build ;;
			publish)      do_publish ;;
			gitea_sync)   do_gitea_sync ;;
			*)            echo '{"error": "unknown method"}' ;;
		esac
		;;
esac