#!/bin/sh /etc/rc.common
#
# Media Flow Init Script
# Manages the media flow data collector cron jobs
# Supports nDPId (local DPI) and netifyd as data sources
#

START=99
STOP=10

CRON_FILE="/etc/crontabs/root"
CRON_MARKER="# media-flow-collector"

# Detect best collector to use
get_collector() {
	# Prefer nDPId collector if nDPId is installed
	if [ -x /usr/bin/media-flow-ndpid-collector ] && command -v ndpid >/dev/null 2>&1; then
		echo "/usr/bin/media-flow-ndpid-collector"
	else
		echo "/usr/bin/media-flow-collector"
	fi
}

add_cron_entry() {
	# Remove existing entries first
	remove_cron_entry

	local collector=$(get_collector)
	local cron_entry="*/1 * * * * $collector >/dev/null 2>&1"

	# Add the new entry with marker
	if [ -f "$CRON_FILE" ]; then
		echo "$CRON_MARKER" >> "$CRON_FILE"
		echo "$cron_entry" >> "$CRON_FILE"
	else
		echo "$CRON_MARKER" > "$CRON_FILE"
		echo "$cron_entry" >> "$CRON_FILE"
	fi

	# Restart cron
	/etc/init.d/cron reload 2>/dev/null || /etc/init.d/cron restart 2>/dev/null

	logger -t media-flow "Collector enabled: $collector"
}

remove_cron_entry() {
	if [ -f "$CRON_FILE" ]; then
		sed -i '/# media-flow-collector/d' "$CRON_FILE"
		sed -i '\|/usr/bin/media-flow-collector|d' "$CRON_FILE"
		sed -i '\|/usr/bin/media-flow-ndpid-collector|d' "$CRON_FILE"
		/etc/init.d/cron reload 2>/dev/null || /etc/init.d/cron restart 2>/dev/null
	fi
}

start() {
	local enabled=$(uci -q get media_flow.global.enabled 2>/dev/null || echo "1")

	if [ "$enabled" = "1" ]; then
		logger -t media-flow "Starting media flow collector"
		add_cron_entry
		# Run once immediately
		local collector=$(get_collector)
		$collector &
	fi
}

stop() {
	logger -t media-flow "Stopping media flow collector"
	remove_cron_entry
}

reload() {
	local enabled=$(uci -q get media_flow.global.enabled 2>/dev/null || echo "1")

	if [ "$enabled" = "1" ]; then
		logger -t media-flow "Reloading media flow collector"
		add_cron_entry
	else
		logger -t media-flow "Media flow disabled, removing collector"
		remove_cron_entry
	fi
}

status() {
	local enabled=$(uci -q get media_flow.global.enabled 2>/dev/null || echo "1")
	local collector=$(get_collector)

	echo "Media Flow v0.6.0"
	echo "================="

	if grep -q "media-flow" "$CRON_FILE" 2>/dev/null; then
		echo "Collector: ACTIVE"
	else
		echo "Collector: INACTIVE"
	fi

	echo "Using: $collector"
	echo "UCI enabled: $enabled"

	# DPI engine status
	if pgrep ndpid >/dev/null 2>&1; then
		echo "nDPId: Running"
	else
		echo "nDPId: Not running"
	fi

	if pgrep netifyd >/dev/null 2>&1; then
		echo "Netifyd: Running"
	else
		echo "Netifyd: Not running"
	fi

	if [ -f /tmp/media-flow-history.json ]; then
		local count=$(jq 'length' /tmp/media-flow-history.json 2>/dev/null || echo 0)
		echo "History entries: $count"
	fi

	if [ -f /tmp/media-flow-ndpid-cache.json ]; then
		local streams=$(jq 'length' /tmp/media-flow-ndpid-cache.json 2>/dev/null || echo 0)
		echo "Active streams: $streams"
	fi
}