cv/flake.nix

{
  inputs = {
    nix.url = "git+ssh://git@git.c3c.cz/C3C/nix";
  };

  outputs =
    { self, nix }:
    {
      formatter = nix.formatter;

      packages = nix.lib.forAllSystems (
        pkgs:
        let
          version = "rev-${self.shortRev or self.dirtyShortRev}";
          package = builtins.fromJSON (builtins.readFile ./app/frontend/package.json);
        in
        rec {
          devenv-up = self.devShells.${pkgs.system}.default.config.procfileScript;

          devenv-test = self.devShells.${pkgs.system}.default.config.test;

          ui = pkgs.buildNpmPackage {
            inherit version;
            pname = "cv";
            src = ./app/frontend;
            preBuild = ''
              cp ${nix.lib.eslint-config-file} ./eslint.shared.mjs
              npm run check
            '';
            npmInstallFlags = "--no-audit --no-progress --no-fund";
            npmDepsHash = "sha256-p4rTpy0t8aajbubvtF1TA83/FFqvfKEOPBb5T0ZRfQY=";
            npmPackFlags = [ "--ignore-scripts" ];
          };

          server = pkgs.buildGoModule {
            inherit version;
            pname = "cv";
            CGO_ENABLED = 0;
            src = ./.;
            subPackages = [ "app/server" ];
            postPatch = ''
              rm -rf app/server/internal/files/data/public
              mkdir -p app/server/internal/files/data/public
              touch app/server/internal/files/data/public/.gitkeep
              cp -Tr ${ui}/lib/node_modules/${package.name}/dist app/server/internal/files/data/public/
              chmod +w -R app/server/internal/files/data/public
              sed -i 's#<script#<script nonce="{{ .CspNonce }}"#g' app/server/internal/files/data/public/index.html
            '';
            ldflags = [
              "-s"
              "-w"
              "-X gopkg.c3c.cz/cv/app/server/internal/version.Tag=${version}"
              "-X gopkg.c3c.cz/cv/app/server/internal/version.Commit=${self.rev or self.dirtyRev}"
              "-X gopkg.c3c.cz/cv/app/server/internal/version.commitTime=${
                builtins.toString (self.lastModified or 0)
              }"
            ];
            vendorHash = "sha256-44xcyVk5KcurQLkVJv1MeAj+Pfcu53664pvVgHdyv3E=";
          };

          image = pkgs.dockerTools.streamLayeredImage {
            name = "cv";
            tag = "current";

            config = {
              Env = [ "SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt" ];
              Entrypoint = [ "${server}/bin/server" ];
            };
          };

        }
      );

      devShells = nix.lib.forAllSystems (pkgs: {
        default = nix.lib.mkDevenvShell {
          inputs = {
            self = self;
            nixpkgs = pkgs;
          };

          pkgs = pkgs;

          modules = [
            {
              packages = [
                pkgs.go
                pkgs.nodejs_22
              ];

              enterShell = ''
                cp ${nix.lib.eslint-config-file} ./app/frontend/eslint.shared.mjs
              '';

              scripts = {
                # Override golangci-lint for vscode, because the extension incorrectly assumes usage of global binaries is preferred
                golangci-lint = {
                  exec = ''
                    CMD=''${1:-}
                    if [[ "$CMD" == "run" ]]; then
                      shift
                      ${pkgs.golangci-lint}/bin/golangci-lint run --config ${nix.lib.golangci-config-file} $@
                    else
                      ${pkgs.golangci-lint}/bin/golangci-lint $@
                    fi
                  '';
                };

                lint = {
                  exec = ''
                    ${nix.lib.cd_root}
                    ${pkgs.golangci-lint}/bin/golangci-lint run --sort-results --out-format tab --config ${nix.lib.golangci-config-file} ./...
                    npm --prefix app/frontend run check
                  '';
                };

                fix = {
                  exec = ''
                    ${nix.lib.cd_root}
                    nix fmt ./*.nix
                    ${pkgs.golangci-lint}/bin/golangci-lint run --sort-results --out-format tab --config ${nix.lib.golangci-config-file} --fix --issues-exit-code 0 ./...
                    npm --prefix app/frontend run fix
                  '';
                };

                update-npm-deps-hash = {
                  exec = ''
                    ${nix.lib.cd_root}
                    echo "Calculating npm deps"
                    # STDERR is poluted by the installed nodules, silencing
                    HASH=''$(${pkgs.prefetch-npm-deps}/bin/prefetch-npm-deps ./app/frontend/package-lock.json 2> /dev/null)
                    [[ ''$HASH = sha256* ]] && echo "Hash is ''$HASH"
                    [[ ''$HASH != sha256* ]] && echo "Failed" && exit 137

                    # Replace the first occurence of npmDepsHash with the new calculated hash in this file
                    sed -i "0,/npmDepsHash =/{s@npmDepsHash = .*@npmDepsHash = \"''$HASH\";@}" ./flake.nix
                  '';
                };

                dev = {
                  exec = ''
                    ${nix.lib.cd_root}
                    npm --prefix ./app/frontend run dev
                  '';
                };
              };
            }
          ];
        };
      });
    };
}