# Setup this path to coconut-leaf legacy frontend.
set $frontend_root /var/www/coconut-leaf/frontend-legacy;
root $frontend_root;
index home.html;

# ============================
# Route 1: /web -> HTML templates with extensionless fallback
# ============================
location /web {
	# Use alias to exactly mapping
	alias $frontend_root/templates;

	# Optimize for static file
	expires 7d;
	add_header Cache-Control "public, max-age=604800";
	gzip_static on;

	# Try file with .html suffix
	try_files $uri.html $uri =404;
}

# /web/eventAdd -> templates/event.html, replace {{uuidPath}} with blank
location = /web/eventAdd {
	alias $frontend_root/templates/event.html;
	default_type text/html;
	sub_filter '{{uuidPath}}' '';
	sub_filter_once on;
}

# /web/eventUpdate/<path:uuidPath> -> templates/event.html, replace {{uuidPath}} with uuidPath
location ~ ^/web/eventUpdate/(?<uuidPath>.+)$ {
	alias $frontend_root/templates/event.html;
	default_type text/html;
	sub_filter '{{uuidPath}}' $uuidPath;
	sub_filter_once on;
}

# ============================
# Route 2: /static -> static files
# ============================
location /static {
	# Use alias to exactly mapping
	alias $frontend_root/static;

	# Optimize for static file
	expires 7d;
	add_header Cache-Control "public, max-age=604800";
	gzip_static on;

	# Try file with .html suffix
	try_files $uri $uri =404;
}

# ============================
# Route 3: /api -> reverse proxy to backend
# ============================
location /api {
	# Rewrite to remove "api" prefix
	rewrite ^/api(/.*)$ $1 break;

	# Reverse proxy to localhost backend
	proxy_pass http://127.0.0.1:8848;

	# Keep original request headers
	proxy_set_header Host $host;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header X-Forwarded-Proto $scheme;

	# Optional: WebSocket support
	# proxy_http_version 1.1;
	# proxy_set_header Upgrade $http_upgrade;
	# proxy_set_header Connection "upgrade";
	
	# Time configuration
	proxy_connect_timeout 60s;
	proxy_send_timeout 60s;
	proxy_read_timeout 60s;

	# Buffer setup (changed when meeting large file uploading)
	proxy_buffering on;
	proxy_buffer_size 4k;
	proxy_buffers 8 4k;
}

# ============================
# Root path redirect: Root -> /web/home
# ============================
location = / {
	return 302 /web/home;
}

# Deny hidden files at root level
location ~ /\. {
	deny all;
	return 404;
}