#!/bin/sh
# ╔═══════════════════════════════════════════════════════════════════╗
# ║  ⚡ CYBERFEED v0.1 - RSS Aggregator for OpenWrt/SecuBox ⚡        ║
# ║  Cyberpunk Social Feed Analyzer with Emoji Enhancement            ║
# ║  Author: CyberMind.FR | License: MIT                              ║
# ╚═══════════════════════════════════════════════════════════════════╝

. /lib/functions.sh

# === CONFIGURATION ===
CYBERFEED_DIR="/tmp/cyberfeed"
CACHE_DIR="${CYBERFEED_DIR}/cache"
OUTPUT_DIR="${CYBERFEED_DIR}/output"
CONFIG_FILE="/etc/cyberfeed/feeds.conf"
TEMPLATE_FILE="/usr/share/cyberfeed/template.html"
MAX_ITEMS=20
CACHE_TTL=300

# Load UCI config
load_config() {
	config_load cyberfeed
	config_get MAX_ITEMS main max_items 20
	config_get CACHE_TTL main cache_ttl 300
	config_get OUTPUT_DIR main output_dir "/tmp/cyberfeed/output"
}

# === CYBERPUNK EMOJI MAPPING ===
cyberpunk_emojify() {
	local text="$1"

	# Security/Hacking themes
	echo "$text" | sed -E '
		s/(hack|breach|exploit|vulnerab)/\xf0\x9f\x94\x93\1/gi
		s/(secur|protect|defense|firewall)/\xf0\x9f\x9b\xa1\xef\xb8\x8f\1/gi
		s/(cyber|digital|virtual)/\xe2\x9a\xa1\1/gi
		s/(encrypt|crypto|cipher)/\xf0\x9f\x94\x90\1/gi
		s/(malware|virus|trojan)/\xe2\x98\xa0\xef\xb8\x8f\1/gi
		s/(alert|warning|danger)/\xe2\x9a\xa0\xef\xb8\x8f\1/gi
		s/(attack|threat|risk)/\xf0\x9f\x92\x80\1/gi
		s/(network|connect|link)/\xf0\x9f\x8c\x90\1/gi
		s/(server|cloud|data)/\xf0\x9f\x92\xbe\1/gi
		s/(code|program|script)/\xf0\x9f\x92\xbb\1/gi
		s/(linux|opensource|github)/\xf0\x9f\x90\xa7\1/gi
		s/(robot|automat|ai|machine)/\xf0\x9f\xa4\x96\1/gi
		s/(update|upgrade|patch)/\xf0\x9f\x93\xa1\1/gi
		s/(launch|deploy|release)/\xf0\x9f\x9a\x80\1/gi
		s/(new|annonce|breaking)/\xe2\x9c\xa8\1/gi
		s/(success|win|achieve)/\xf0\x9f\x8f\x86\1/gi
		s/(fail|error|bug)/\xf0\x9f\x90\x9b\1/gi
		s/(magic|mystiq|oracle)/\xf0\x9f\x94\xae\1/gi
		s/(energy|power|force)/\xe2\x9a\xa1\1/gi
	'
}

# === RSS FETCHER ===
fetch_feed() {
	local url="$1"
	local name="$2"
	local cache_file="${CACHE_DIR}/${name}.xml"

	# Check cache freshness
	if [ -f "$cache_file" ]; then
		local file_time=$(stat -c %Y "$cache_file" 2>/dev/null || echo 0)
		local now=$(date +%s)
		local age=$((now - file_time))
		if [ "$age" -lt "$CACHE_TTL" ]; then
			cat "$cache_file"
			return 0
		fi
	fi

	# Fetch with wget (OpenWrt standard)
	wget -q -T 15 -O "$cache_file" "$url" 2>/dev/null

	if [ -f "$cache_file" ] && [ -s "$cache_file" ]; then
		cat "$cache_file"
	else
		rm -f "$cache_file"
		return 1
	fi
}

# === RSS PARSER (Pure AWK for OpenWrt) ===
parse_rss() {
	local xml="$1"
	local source="$2"
	local category="$3"

	echo "$xml" | awk -v source="$source" -v category="$category" -v max="$MAX_ITEMS" '
	BEGIN {
		RS="</item>|</entry>"
		item_count=0
	}
	{
		title=""
		link=""
		date=""
		desc=""

		# Extract title
		if (match($0, /<title[^>]*>([^<]+)<\/title>/, arr)) title=arr[1]
		else if (match($0, /<title[^>]*><!\[CDATA\[([^\]]+)\]\]><\/title>/, arr)) title=arr[1]

		# Extract link
		if (match($0, /<link[^>]*>([^<]+)<\/link>/, arr)) link=arr[1]
		else if (match($0, /<link[^>]*href="([^"]+)"/, arr)) link=arr[1]

		# Extract date
		if (match($0, /<pubDate>([^<]+)</, arr)) date=arr[1]
		else if (match($0, /<published>([^<]+)</, arr)) date=arr[1]
		else if (match($0, /<updated>([^<]+)</, arr)) date=arr[1]

		# Extract description
		if (match($0, /<description[^>]*>([^<]+)</, arr)) desc=arr[1]
		else if (match($0, /<summary[^>]*>([^<]+)</, arr)) desc=arr[1]
		else if (match($0, /<description[^>]*><!\[CDATA\[(.{1,500})/, arr)) desc=arr[1]

		if (title != "" && item_count < max) {
			# Escape JSON special chars
			gsub(/"/, "\\\"", title)
			gsub(/"/, "\\\"", desc)
			gsub(/[\r\n\t]/, " ", title)
			gsub(/[\r\n\t]/, " ", desc)
			gsub(/<[^>]+>/, "", desc)
			desc = substr(desc, 1, 280)

			printf "{\"title\":\"%s\",\"link\":\"%s\",\"date\":\"%s\",\"desc\":\"%s\",\"source\":\"%s\",\"category\":\"%s\"},", title, link, date, desc, source, category
			item_count++
		}
	}
	'
}

# === HTML GENERATOR ===
generate_html() {
	local json_file="$1"
	local output_file="${OUTPUT_DIR}/index.html"
	local timestamp=$(date '+%Y-%m-%d %H:%M:%S')
	local feed_count=$(grep -c '"title"' "$json_file" 2>/dev/null || echo 0)

	cat > "$output_file" << 'HTMLEOF'
<!DOCTYPE html>
<html lang="fr">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>⚡ CYBERFEED ⚡ Neural RSS Matrix</title>
<style>
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Share+Tech+Mono&display=swap');
:root {
	--neon-cyan: #0ff;
	--neon-magenta: #f0f;
	--neon-yellow: #ff0;
	--dark-bg: #0a0a0f;
	--darker-bg: #050508;
	--grid-color: rgba(0, 255, 255, 0.03);
	--text-primary: #e0e0e0;
	--text-dim: #606080;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
	font-family: 'Share Tech Mono', monospace;
	background: var(--dark-bg);
	color: var(--text-primary);
	min-height: 100vh;
}
body::before {
	content: '';
	position: fixed;
	top: 0; left: 0;
	width: 100%; height: 100%;
	background-image:
		linear-gradient(var(--grid-color) 1px, transparent 1px),
		linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
	background-size: 50px 50px;
	animation: gridScroll 20s linear infinite;
	pointer-events: none;
	z-index: -1;
}
@keyframes gridScroll {
	0% { transform: translateY(0); }
	100% { transform: translateY(50px); }
}
body::after {
	content: '';
	position: fixed;
	top: 0; left: 0;
	width: 100%; height: 100%;
	background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.1) 2px, rgba(0,0,0,0.1) 4px);
	pointer-events: none;
	z-index: 1000;
}
.cyber-header {
	text-align: center;
	padding: 2rem;
	border-bottom: 1px solid var(--neon-cyan);
	background: linear-gradient(180deg, rgba(0,255,255,0.1) 0%, transparent 100%);
}
.cyber-header h1 {
	font-family: 'Orbitron', sans-serif;
	font-size: clamp(2rem, 5vw, 3.5rem);
	font-weight: 900;
	text-transform: uppercase;
	letter-spacing: 0.2em;
	color: var(--neon-cyan);
	text-shadow: 0 0 10px var(--neon-cyan), 0 0 20px var(--neon-cyan), 0 0 40px var(--neon-cyan);
	animation: flicker 3s infinite;
}
@keyframes flicker {
	0%, 100% { opacity: 1; }
	92% { opacity: 1; }
	93% { opacity: 0.8; }
	94% { opacity: 1; }
}
.cyber-header .subtitle {
	font-size: 0.85rem;
	color: var(--neon-magenta);
	margin-top: 0.5rem;
	letter-spacing: 0.4em;
}
.status-bar {
	display: flex;
	justify-content: center;
	gap: 2rem;
	margin-top: 1rem;
	font-size: 0.75rem;
	color: var(--text-dim);
	flex-wrap: wrap;
}
.status-bar span::before { content: '▸ '; color: var(--neon-cyan); }
.category-filter {
	display: flex;
	justify-content: center;
	gap: 0.5rem;
	padding: 1rem;
	flex-wrap: wrap;
}
.category-btn {
	background: rgba(0,255,255,0.1);
	border: 1px solid var(--neon-cyan);
	color: var(--neon-cyan);
	padding: 0.4rem 1rem;
	font-family: 'Orbitron', sans-serif;
	font-size: 0.7rem;
	cursor: pointer;
	transition: all 0.3s;
	text-transform: uppercase;
}
.category-btn:hover, .category-btn.active {
	background: var(--neon-cyan);
	color: var(--dark-bg);
	box-shadow: 0 0 15px var(--neon-cyan);
}
.feed-container {
	max-width: 900px;
	margin: 0 auto;
	padding: 1.5rem;
}
.feed-item {
	background: linear-gradient(135deg, rgba(0,255,255,0.05) 0%, rgba(255,0,255,0.02) 100%);
	border: 1px solid rgba(0,255,255,0.2);
	border-left: 3px solid var(--neon-cyan);
	margin-bottom: 1.2rem;
	padding: 1.2rem;
	transition: all 0.3s ease;
	position: relative;
	overflow: hidden;
}
.feed-item::before {
	content: '';
	position: absolute;
	top: 0; left: 0;
	width: 100%; height: 100%;
	background: linear-gradient(90deg, transparent, rgba(0,255,255,0.1), transparent);
	transform: translateX(-100%);
	transition: transform 0.5s ease;
}
.feed-item:hover {
	border-color: var(--neon-magenta);
	box-shadow: 0 0 20px rgba(0,255,255,0.2), inset 0 0 20px rgba(255,0,255,0.05);
}
.feed-item:hover::before { transform: translateX(100%); }
.feed-item .meta {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 0.5rem;
	flex-wrap: wrap;
	gap: 0.5rem;
}
.feed-item .timestamp {
	font-size: 0.7rem;
	color: var(--neon-magenta);
	text-transform: uppercase;
	letter-spacing: 0.15em;
}
.feed-item .source-tag {
	background: rgba(255,0,255,0.2);
	border: 1px solid var(--neon-magenta);
	padding: 0.15rem 0.5rem;
	font-size: 0.6rem;
	text-transform: uppercase;
	letter-spacing: 0.1em;
}
.feed-item .category-tag {
	background: rgba(0,255,255,0.2);
	border: 1px solid var(--neon-cyan);
	padding: 0.15rem 0.5rem;
	font-size: 0.6rem;
	text-transform: uppercase;
}
.feed-item .title {
	font-family: 'Orbitron', sans-serif;
	font-size: 1rem;
	font-weight: 700;
	color: var(--neon-cyan);
	margin-bottom: 0.6rem;
	line-height: 1.4;
}
.feed-item .title a {
	color: inherit;
	text-decoration: none;
	transition: text-shadow 0.3s ease;
}
.feed-item .title a:hover { text-shadow: 0 0 10px var(--neon-cyan); }
.feed-item .description {
	font-size: 0.85rem;
	color: var(--text-primary);
	line-height: 1.5;
	opacity: 0.85;
}
.cyber-footer {
	text-align: center;
	padding: 2rem;
	border-top: 1px solid rgba(0,255,255,0.2);
	font-size: 0.7rem;
	color: var(--text-dim);
}
.cyber-footer a { color: var(--neon-cyan); text-decoration: none; }
.empty-state {
	text-align: center;
	padding: 4rem 2rem;
	color: var(--text-dim);
}
.empty-state .icon { font-size: 4rem; margin-bottom: 1rem; }
@media (max-width: 600px) {
	.feed-container { padding: 1rem; }
	.feed-item { padding: 1rem; }
	.status-bar { gap: 1rem; }
}
</style>
</head>
<body>
<header class="cyber-header">
	<h1>⚡ CYBERFEED ⚡</h1>
	<p class="subtitle">NEURAL RSS MATRIX INTERFACE</p>
	<div class="status-bar">
		<span id="feed-count">FEEDS: --</span>
		<span id="last-update">SYNC: --:--:--</span>
		<span>STATUS: ONLINE</span>
	</div>
</header>
<div class="category-filter">
	<button class="category-btn active" onclick="filterCategory('all')">ALL</button>
	<button class="category-btn" onclick="filterCategory('security')">SECURITY</button>
	<button class="category-btn" onclick="filterCategory('tech')">TECH</button>
	<button class="category-btn" onclick="filterCategory('social')">SOCIAL</button>
	<button class="category-btn" onclick="filterCategory('news')">NEWS</button>
</div>
<main class="feed-container" id="feed-items">
	<div class="empty-state">
		<div class="icon">🔮</div>
		<p>Awaiting Neural Feed Connection...</p>
	</div>
</main>
<footer class="cyber-footer">
	<p>⚡ CYBERFEED v0.1 | Powered by <a href="https://cybermind.fr">CyberMind.FR</a> | SecuBox Module ⚡</p>
	<p>░▒▓ JACK IN TO THE MATRIX ▓▒░</p>
</footer>
<script>
let feedData = [];
let currentFilter = 'all';

async function loadFeeds() {
	try {
		const resp = await fetch('/cyberfeed/feeds.json?' + Date.now());
		feedData = await resp.json();
		renderFeeds();
		document.getElementById('feed-count').textContent = 'FEEDS: ' + feedData.length;
		document.getElementById('last-update').textContent = 'SYNC: ' + new Date().toLocaleTimeString('fr-FR', {hour12: false});
	} catch(e) {
		console.error('Feed load error:', e);
	}
}

function filterCategory(cat) {
	currentFilter = cat;
	document.querySelectorAll('.category-btn').forEach(b => b.classList.remove('active'));
	event.target.classList.add('active');
	renderFeeds();
}

function renderFeeds() {
	const container = document.getElementById('feed-items');
	const filtered = currentFilter === 'all' ? feedData : feedData.filter(f => f.category === currentFilter);

	if (filtered.length === 0) {
		container.innerHTML = '<div class="empty-state"><div class="icon">📡</div><p>No feeds in this category</p></div>';
		return;
	}

	container.innerHTML = filtered.map(item => `
		<article class="feed-item" data-category="${item.category || 'custom'}">
			<div class="meta">
				<span class="timestamp">⏰ ${item.date || 'Unknown'}</span>
				<div>
					<span class="source-tag">${item.source || 'RSS'}</span>
					<span class="category-tag">${item.category || 'custom'}</span>
				</div>
			</div>
			<h2 class="title"><a href="${item.link}" target="_blank" rel="noopener">${item.title}</a></h2>
			<p class="description">${item.desc || ''}</p>
		</article>
	`).join('');
}

loadFeeds();
setInterval(loadFeeds, 300000);
</script>
</body>
</html>
HTMLEOF

	echo "$output_file"
}

# === STATUS ===
get_status() {
	local enabled=$(uci -q get cyberfeed.main.enabled || echo 0)
	local feed_count=0
	local last_sync="never"
	local rssbridge_enabled=$(uci -q get cyberfeed.rssbridge.enabled || echo 0)
	local rssbridge_status="stopped"

	if [ -f "${OUTPUT_DIR}/feeds.json" ]; then
		feed_count=$(grep -c '"title"' "${OUTPUT_DIR}/feeds.json" 2>/dev/null || echo 0)
		last_sync=$(stat -c %Y "${OUTPUT_DIR}/feeds.json" 2>/dev/null || echo 0)
	fi

	if [ "$rssbridge_enabled" = "1" ]; then
		if pgrep -f "rss-bridge" >/dev/null 2>&1; then
			rssbridge_status="running"
		fi
	fi

	cat << EOF
{
	"enabled": $enabled,
	"feed_count": $feed_count,
	"last_sync": $last_sync,
	"cache_ttl": $CACHE_TTL,
	"max_items": $MAX_ITEMS,
	"rssbridge_enabled": $rssbridge_enabled,
	"rssbridge_status": "$rssbridge_status"
}
EOF
}

# === SYNC FEEDS ===
sync_feeds() {
	load_config

	mkdir -p "$CACHE_DIR" "$OUTPUT_DIR"

	if [ ! -f "$CONFIG_FILE" ]; then
		echo '[]' > "${OUTPUT_DIR}/feeds.json"
		generate_html "${OUTPUT_DIR}/feeds.json"
		return 0
	fi

	local json_items="["
	local feed_count=0

	while IFS='|' read -r name url type category || [ -n "$name" ]; do
		# Skip comments and empty lines
		case "$name" in
			''|\#*) continue ;;
		esac

		[ -z "$category" ] && category="custom"

		echo "📡 Fetching: $name" >&2

		raw_xml=$(fetch_feed "$url" "$name")
		if [ -n "$raw_xml" ]; then
			parsed=$(parse_rss "$raw_xml" "$name" "$category")
			if [ -n "$parsed" ]; then
				emojified=$(cyberpunk_emojify "$parsed")
				json_items="${json_items}${emojified}"
				feed_count=$((feed_count + 1))
			fi
		fi
	done < "$CONFIG_FILE"

	# Remove trailing comma, close array
	json_items=$(echo "$json_items" | sed 's/,$//')
	json_items="${json_items}]"

	echo "$json_items" > "${OUTPUT_DIR}/feeds.json"
	generate_html "${OUTPUT_DIR}/feeds.json" >/dev/null

	# Create symlink for web access
	[ -L /www/cyberfeed/index.html ] || ln -sf "${OUTPUT_DIR}/index.html" /www/cyberfeed/index.html 2>/dev/null
	[ -L /www/cyberfeed/feeds.json ] || ln -sf "${OUTPUT_DIR}/feeds.json" /www/cyberfeed/feeds.json 2>/dev/null

	echo ""
	echo "╔═══════════════════════════════════════════════════════════╗"
	echo "║  ⚡ CYBERFEED SYNC COMPLETE ⚡                            ║"
	echo "╠═══════════════════════════════════════════════════════════╣"
	printf "║  📊 Feeds processed: %-36s ║\n" "$feed_count"
	echo "║  📁 Output: /www/cyberfeed/                               ║"
	echo "╚═══════════════════════════════════════════════════════════╝"
}

# === LIST FEEDS ===
list_feeds() {
	if [ ! -f "$CONFIG_FILE" ]; then
		echo "[]"
		return
	fi

	echo "["
	local first=1
	while IFS='|' read -r name url type category || [ -n "$name" ]; do
		case "$name" in
			''|\#*) continue ;;
		esac
		[ "$first" = "1" ] || echo ","
		first=0
		printf '{"name":"%s","url":"%s","type":"%s","category":"%s"}' \
			"$name" "$url" "${type:-rss}" "${category:-custom}"
	done < "$CONFIG_FILE"
	echo "]"
}

# === ADD FEED ===
add_feed() {
	local name="$1"
	local url="$2"
	local type="${3:-rss}"
	local category="${4:-custom}"

	[ -z "$name" ] || [ -z "$url" ] && {
		echo '{"success":false,"error":"Name and URL required"}'
		return 1
	}

	# Check if feed already exists
	if grep -q "^${name}|" "$CONFIG_FILE" 2>/dev/null; then
		echo '{"success":false,"error":"Feed already exists"}'
		return 1
	fi

	echo "${name}|${url}|${type}|${category}" >> "$CONFIG_FILE"
	echo '{"success":true}'
}

# === DELETE FEED ===
delete_feed() {
	local name="$1"

	[ -z "$name" ] && {
		echo '{"success":false,"error":"Name required"}'
		return 1
	}

	if grep -q "^${name}|" "$CONFIG_FILE" 2>/dev/null; then
		sed -i "/^${name}|/d" "$CONFIG_FILE"
		rm -f "${CACHE_DIR}/${name}.xml"
		echo '{"success":true}'
	else
		echo '{"success":false,"error":"Feed not found"}'
		return 1
	fi
}

# === MAIN ===
case "$1" in
	sync)
		sync_feeds
		;;
	status)
		get_status
		;;
	list)
		list_feeds
		;;
	add)
		add_feed "$2" "$3" "$4" "$5"
		;;
	delete)
		delete_feed "$2"
		;;
	*)
		echo "Usage: $0 {sync|status|list|add|delete}"
		echo ""
		echo "Commands:"
		echo "  sync              Fetch and process all feeds"
		echo "  status            Show service status (JSON)"
		echo "  list              List configured feeds (JSON)"
		echo "  add NAME URL [TYPE] [CATEGORY]"
		echo "                    Add a new feed"
		echo "  delete NAME       Remove a feed"
		;;
esac