# Application-routing Caddy for the long-lived dev environment.
# Single-origin, path-based: the project site, the game UI, and both
# gateway surfaces live behind one host. TLS termination and the real
# `:80`/`:443` listeners belong to the host Caddy in front of us.
#
#   /                -> project site   (galaxy-dev-site-dist -> /srv/galaxy-site)
#   /game/*          -> game UI        (galaxy-dev-ui-dist  -> /srv/galaxy-ui)
#   /api/*, /healthz -> gateway public REST       (galaxy-api:8080)
#   /rpc/*           -> gateway Connect/gRPC-web  (galaxy-api:9090)
#
# The same artifact is domain-agnostic: nothing here names a host, so an
# identical bundle serves galaxy.lan, galaxy.iliadenisov.ru, or any
# other domain the host Caddy terminates.
{
	auto_https off
}

:80 {
	# Authenticated Connect-Web edge. The browser calls
	# `/rpc/edge.v1.Gateway/<Method>`; strip the `/rpc` prefix so the
	# gateway sees the proto-derived service path on its :9090 listener.
	handle_path /rpc/* {
		reverse_proxy galaxy-api:9090
	}

	# Gateway public REST (auth) and the health probe on :8080.
	@api path /api/* /healthz
	handle @api {
		reverse_proxy galaxy-api:8080
	}

	# Bare `/game` (no trailing slash) -> `/game/` so the SPA root
	# resolves before the site catch-all can claim it.
	handle /game {
		redir * /game/ 308
	}

	# Game UI under `/game/`. The bundle is built with base=/game, so it
	# references `/game/_app/...`; strip the prefix to serve the build
	# whose files sit at the volume root. SPA fallback to index.html.
	handle_path /game/* {
		root * /srv/galaxy-ui
		# Hash-named, content-addressed chunks: cache forever.
		@immutable path /_app/immutable/*
		header @immutable Cache-Control "public, max-age=31536000, immutable"
		# index.html, env.js, version.json, core.wasm, wasm_exec.js,
		# favicon, manifest, service-worker.js must revalidate so a
		# fresh deploy lands without a manual cache clear.
		@dynamic not path /_app/immutable/*
		header @dynamic Cache-Control "no-cache, must-revalidate"
		try_files {path} /index.html
		file_server
		encode zstd gzip
	}

	# Project site at the root (VitePress static output).
	handle {
		root * /srv/galaxy-site
		# VitePress emits hash-named assets under `/assets/`.
		@immutable path /assets/*
		header @immutable Cache-Control "public, max-age=31536000, immutable"
		@dynamic not path /assets/*
		header @dynamic Cache-Control "no-cache, must-revalidate"
		try_files {path} {path}.html {path}/index.html /404.html
		file_server
		encode zstd gzip
	}
}
