refactor: Migrate CLI and API components to use castle-core for configuration and manifest handling

cli/src/castle_cli/commands/gateway.py

@@ -6,71 +6,22 @@ import argparse
 import subprocess
 
 from castle_cli.config import GENERATED_DIR, CastleConfig, ensure_dirs, load_config
+from castle_core.generators.caddyfile import find_app_dist, generate_caddyfile
 
 
 GATEWAY_COMPONENT = "castle-gateway"
 GATEWAY_UNIT = "castle-castle-gateway.service"
 
 
-def _find_app_dist(config: CastleConfig) -> str | None:
-    """Find the app dist/ directory if it exists."""
-    dist = config.root / "app" / "dist"
-    if dist.exists() and (dist / "index.html").exists():
-        return str(dist)
-    return None
-
-
-def _generate_caddyfile(config: CastleConfig) -> str:
-    """Generate Caddyfile content from castle config."""
-    lines = [f":{config.gateway.port} {{"]
-
-    # Reverse proxy for each component with proxy.caddy and expose.http
-    for name, manifest in config.components.items():
-        if not (manifest.proxy and manifest.proxy.caddy and manifest.proxy.caddy.enable):
-            continue
-        if not (manifest.expose and manifest.expose.http):
-            continue
-
-        caddy = manifest.proxy.caddy
-        http = manifest.expose.http
-        path_prefix = caddy.path_prefix or f"/{name}"
-        port = http.internal.port
-        host = http.internal.host or "localhost"
-
-        lines.append(f"    handle_path {path_prefix}/* {{")
-        lines.append(f"        reverse_proxy {host}:{port}")
-        lines.append("    }")
-        lines.append("")
-
-    # App SPA at root (must come after more-specific handle_path rules)
-    app_dist = _find_app_dist(config)
-    if app_dist:
-        lines.append("    handle {")
-        lines.append(f"        root * {app_dist}")
-        lines.append("        try_files {path} /index.html")
-        lines.append("        file_server")
-        lines.append("    }")
-    else:
-        # Fallback: serve from generated directory
-        fallback = GENERATED_DIR / "app"
-        lines.append("    handle / {")
-        lines.append(f"        root * {fallback}")
-        lines.append("        file_server")
-        lines.append("    }")
-
-    lines.append("}")
-    return "\n".join(lines)
-
-
 def _write_generated_files(config: CastleConfig) -> None:
     """Write generated Caddyfile."""
     ensure_dirs()
 
     caddyfile_path = GENERATED_DIR / "Caddyfile"
-    caddyfile_path.write_text(_generate_caddyfile(config))
+    caddyfile_path.write_text(generate_caddyfile(config))
     print(f"  Generated {caddyfile_path}")
 
-    app_dist = _find_app_dist(config)
+    app_dist = find_app_dist(config)
     if app_dist:
         print(f"  App: {app_dist}")
     else:
@@ -104,7 +55,7 @@ def run_gateway(args: argparse.Namespace) -> int:
 def _gateway_dry_run(config: CastleConfig) -> int:
     """Print generated Caddyfile without applying."""
     print("# Caddyfile")
-    print(_generate_caddyfile(config))
+    print(generate_caddyfile(config))
     return 0