{ config, pkgs, ... }:

let
  container_name = "home-assistant";
  compose-dir = "docker-compose/hass";
  config-dir = "/mnt/config-storage/docker-data/hass";
in

{
  config = {
    environment.etc."${compose-dir}/compose.yaml".text =
      /*
      yaml
      */
      ''
        services:
          home-assistant:
            image: ghcr.io/home-assistant/home-assistant:latest
            container_name: home-assistant
            networks:
              hass_frontend:
              hass_backend:
            volumes:
              - ${config-dir}/config:/config
              - /etc/localtime:/etc/localtime:ro
              - /run/dbus:/run/dbus:ro
            # --- hass devices --- #
            labels:
              - traefik.enable=true
              - traefik.http.services.home-assistant.loadbalancer.server.port=8123
              - traefik.http.services.home-assistant.loadbalancer.server.scheme=http
              - traefik.http.routers.home-assistant-https.entrypoints=websecure
              - traefik.http.routers.home-assistant-https.rule=Host(`hass.$DOMAIN_NAME`)
              - traefik.http.routers.home-assistant-https.tls=true
              - traefik.http.routers.home-assistant-https.tls.certresolver=cloudflare
            restart: unless-stopped
        
          frigate-mqtt:
            image: eclipse-mosquitto
            container_name: frigate-mqtt
            user: 1000:1000
            networks:
              hass_backend:
            volumes:
                - ${config-dir}/mqtt:/mosquitto
            restart: unless-stopped
        
        networks:
          hass_backend:
            name: hass_backend
            driver: bridge
            ipam:
              config:
                - subnet: "172.16.4.0/24"
                  gateway: "172.16.4.254"
          hass_frontend:
            external: true
      '';

    systemd.services.hass = {
      description = "Docker container : ${container_name}";
      after = [ "network.target" "docker.service" "docker.socket" "traefik.service" ];
      requires = [ "docker.service" ];
      wantedBy = ["multi-user.target"];
      path = [ pkgs.docker ];

      serviceConfig = {
        Type = "exec";
        # Pull the latest image before running
        ExecStartPre = "${pkgs.docker}/bin/docker compose -f /etc/${compose-dir}/compose.yaml pull";
        # Bring the service up
        ExecStart = "${pkgs.docker}/bin/docker compose -f /etc/${compose-dir}/compose.yaml up --remove-orphans";
        # Take it down gracefully
        ExecStop = "${pkgs.docker}/bin/docker compose -f /etc/${compose-dir}/compose.yaml down";

        Restart = "on-failure";
      };
    };
  };
}