nidus-sync/default.nix

{ pkgs ? import <nixpkgs> { }, proj ? pkgs.proj }:
pkgs.buildGoModule rec {
        meta = {
                description = "Nidus Sync";
                homepage = "https://github.com/Gleipnir-Technology/nidus-sync";
        };
        pname = "nidus-sync";
        src = ./.;
        subPackages = [];
        version = "0.0.11";
        # Needs to be updated after every modification of go.mod/go.sum
        vendorHash = "sha256-zXjryPAJYpc80cqYtrcp//i6OQi5V5QwhaKQYYfrlL8=";

	buildInputs = [ pkgs.proj ];
	nativeBuildInputs = [
		pkgs.pkg-config
		pkgs.dart-sass
		pkgs.esbuild
	];

	preBuild = ''
		# Compile SCSS
		SASS_SRC_DIR="./scss"
		CSS_OUTPUT_DIR="./html/static/css/"

		mkdir -p "$CSS_OUTPUT_DIR"

		echo "Compiling $SASS_SRC_DIR/custom.scss to $CSS_OUTPUT_DIR/bootstrap.css..."
		sass --style=compressed --trace "$SASS_SRC_DIR/custom.scss":"$CSS_OUTPUT_DIR/bootstrap.css"

		# Bundle TypeScript
		JS_OUTPUT_DIR="./html/static/gen/js/"
		mkdir -p "$JS_OUTPUT_DIR"

		echo "Bundling TypeScript..."
		esbuild ts/main.ts --bundle --minify --outfile="$JS_OUTPUT_DIR/bundle.js"

		# Generate hash and rename bundle
		BUNDLE_HASH=$(sha256sum "$JS_OUTPUT_DIR/bundle.js" | cut -c1-12)
		mv "$JS_OUTPUT_DIR/bundle.js" "$JS_OUTPUT_DIR/bundle.$BUNDLE_HASH.js"

		# Generate gen.go with bundle path
		cat > gen.go <<EOF
		package main

		// Generated by Nix build - do not edit manually
		const JsBundlePath = "/static/js/bundel.$BUNDLE_HASH.js"
		EOF

		echo "Generated JS bundle with hash: $BUNDLE_HASH"
	'';
}