quotes-api/flake.nix

# SPDX-FileCopyrightText: 2021 Serokell <https://serokell.io/>
#
# SPDX-License-Identifier: CC0-1.0

{
  description = "quotes-api";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};
        haskellPackages = pkgs.haskellPackages;

        jailbreakUnbreak =
          pkg:
          pkgs.haskell.lib.doJailbreak (
            pkg.overrideAttrs (_: {
              meta = { };
            })
          );

        # DON'T FORGET TO PUT YOUR PACKAGE NAME HERE, REMOVING `throw`
        packageName = "quotes-api";
      in
      {
        packages.${packageName} = haskellPackages.callCabal2nix packageName self rec {
          # Dependency overrides go here
        };

        packages.default = self.packages.${system}.${packageName};
        defaultPackage = self.packages.${system}.default;

        nixosModules = {
          quotes-api =
            {
              config,
              lib,
              pkgs,
              ...
            }:

            with lib;
            let
              cfg = config.services.quotes-api;
            in
            {
              options.services.quotes-api = {
                enable = mkEnableOption "Enables quotes api service";

                port = mkOption rec {
                  type = types.int;
                  default = 8123;
                  example = default;
                  description = "bind port";
                };

                dbpath = mkOption rec {
                  type = types.str;
                  default = "/tmp/sqlite.db";
                  example = default;
                  description = "Path to sqlite database";
                };
              };

              config = mkIf cfg.enable {
                systemd.services."quotes-api" = {
                  wantedBy = [ "multi-user.target" ];

                  serviceConfig =
                    let
                      pkg = self.packages.${pkgs.system}.default;
                    in
                    {
                      Restart = "on-failure";
                      ExecStart = "${pkg}/bin/quotes-api --port ${builtins.toString cfg.port} --dbpath ${cfg.dbpath}";
                    };
                };

              };
            };
        };

        nixosModule = self.nixosModules.${system}.quotes-api;

        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            haskellPackages.haskell-language-server # you must build it with your ghc to work
            haskellPackages.hoogle
            ghcid
            hlint
            ghc
            cabal-install
          ];
          inputsFrom = map (__getAttr "env") (__attrValues self.packages.${system});
        };
        devShell = self.devShells.${system}.default;
      }
    );
}