def fromSecret(name):
  return {
    "from_secret": name
  }
def environment(env):
  return dict(
    [(x.replace("-", "_").upper(), fromSecret(x)) for x in env]
  )
def map(fn, l):
  return [fn(x) for x in l]
def secretToEnvironment(secret):
  return secret.replace("-", "_").upper()
def echo(secret):
  return 'echo "export {environment}=${environment}" >> ***filename*** # {secret}'.format(
      secret = secret,
      environment = secret.replace("-", "_").upper(),
    )
def echoSecret(secret):
  return 'echo "export {environment}=???" >> ***filename*** # {secret}'.format(
      secret = secret,
      environment = secret.replace("-", "_").upper()
    )

def export(secret):
  return "export {toCaps}=${toCaps}".format(
    toCaps = secretToEnvironment(secret),
  )
def printSecrets(filename, env, secretEnv): 
  
  return {
    "name": "print secrets",
    "image": "appleboy/drone-ssh",
    "environment": environment(env),
    "settings": {
      "envs": [x.replace("-", "_") for x in env ],
      "host": fromSecret("ssh-host"),
      "port": fromSecret("ssh-port"),
      "username": fromSecret("ssh-user"),
      "password": fromSecret("ssh-password"),
      "script": [x.replace("***filename***", filename) for x in [
        "rm -f env-stack",
      ] + map(echo, env) 
      + map(echoSecret, secretEnv)]
    }
  }
def wait(delay, name): 
  return {
    "name": name,
    "image": "alpine",
    "commands": [
      "sleep {delay}".format(delay = delay),
    ],
  }
def build(name):
  return {
    "name": "build-{name}".format(name=name),
    "image": "docker:dind",
    "volumes": [
      {
        "name": "dockersock",
        "path": "/var/run",
      },
    ],
    "environment": environment([
      "local-docker-registry",
    ]),
    "commands": [
      "cd {name}".format(name=name),
      "docker build . -t $${{LOCAL_DOCKER_REGISTRY}}{name}".format(name=name),
      "docker push $${{LOCAL_DOCKER_REGISTRY}}{name}".format(name=name),
    ],
  }
def buildHome():
  return {
    "name": "build-nginx-home",
    "image": "docker:dind",
    "volumes": [
      {
        "name": "dockersock",
        "path": "/var/run",
      },
    ],
    "environment": environment([
      "local-docker-registry",
    ]),
    "commands": [
      "cd letsencrypt-nginx",
      "sh build.home.sh $${{LOCAL_DOCKER_REGISTRY}}".format(),
    ],
  }

def buildNginx(name):
  return {
    "name": "build-nginx-{name}".format(name=name),
    "image": "docker:dind",
    "volumes": [
      {
        "name": "dockersock",
        "path": "/var/run",
      },
    ],
    "environment": environment([
      "local-docker-registry",
    ]),
    "commands": [
      "cd letsencrypt-nginx",
      "sh build.sh {name} $${{LOCAL_DOCKER_REGISTRY}}".format(name = name),
    ],
  }

def scp(target):
  return {
    "name": "scp files",
    "image": "appleboy/drone-scp",
    "settings": {
      "host": {
        "from_secret": "ssh-host",
      },
      "username": {
        "from_secret": "ssh-user",
      },
      "password": {
        "from_secret": "ssh-password",
      },
      "port": {
        "from_secret": "ssh-port",
      },
      "command_timeout": "2m",
      "target": target,
      "source": [
        ".",
      ],
    },
  }
def deploy(
  filename,
  folder,
): 
  secrets = [
    "drone-rpc-secret",
    "drone-gitea-client-id",
    "drone-gitea-client-secret",
    "drone-gitea-server",
    "drone-convert-secret",
    "ssh-user",
    "local-docker-registry",
    "certbot-email",
    "git-domain",
    "drone-domain",
    "chat-domain",
    "remote-domain",
    "blog-domain",
  ]
  return {
    "name": "deploy",
    "image": "appleboy/drone-ssh",
    "environment": environment(secrets),
    "settings": {
      "envs": [x.replace("-", "_") for x in secrets ],
      "host": fromSecret("ssh-host"),
      "port": fromSecret("ssh-port"),
      "username": fromSecret("ssh-root-user"),
      "password": fromSecret("ssh-root-password"),
      "script": [
        "set -e"
      ] + map(export, secrets) + [
        "echo {folder}".format(folder=folder),
        "cd {folder}".format(folder=folder),
        "docker pull $${LOCAL_DOCKER_REGISTRY}letsencrypt-git",
        "docker pull $${LOCAL_DOCKER_REGISTRY}nginx-home1",
        "docker pull $${LOCAL_DOCKER_REGISTRY}letsencrypt-chat",
        "docker pull $${LOCAL_DOCKER_REGISTRY}letsencrypt-remote",
        "docker pull $${LOCAL_DOCKER_REGISTRY}letsencrypt-blog",
        "docker pull $${LOCAL_DOCKER_REGISTRY}letsencrypt-drone",
        "docker network prune -f",
        "cd {folder}".format(folder=folder),
        "docker stack rm gitea",
        "sleep 60",
        "docker stack deploy -c {filename} gitea".format(filename = filename),
      ]
    }
  }
def pipeline(name, steps, dependsOn):
  return {
    "kind": "pipeline",
    "name": name,
    "depends_on": dependsOn,
    "steps": [
      printSecrets(
        "env-stack",
        [
          "blog-domain",
          "certbot-email",
          "chat-domain",
          "drone-domain",
          "drone-gitea-client-id",
          "drone-gitea-server",
          "git-domain",
          "local-docker-registry",
          "remote-domain",
          "ssh-user",
        ],
        [
          "drone-convert-secret",
          "drone-gitea-client-secret",
          "drone-rpc-secret",
        ],
      ),
      wait(15, "wait"),
    ] + steps,
    "services": [
      {
        "name": "docker",
        "image": "docker:dind",
        "privileged": True,
        "volumes": [
          {
            "name": "dockersock",
            "path": "/var/run",
          },
          {
            "name": "ca",
            "path": "/etc/docker/certs.d",
          },
        ],
      }
    ],
    "volumes": [
      {
        "name": "dockersock",
        "temp": {},
      },
      {
        "name": "ca",
        "host": {
          "path": "/home/giles/gitea-drone-stack/.ca",
        },
      },
    ],
  }

def main(ctx):
  if ctx.build.branch == 'home-deploy':
    return [
      pipeline(
        'home-deploy',
        [
          #build("guacamole-postgresql"),
          #build("ngrok-gitea"),
          #build("letsencrypt-nginx"),
          #buildHome(),
          build("drone-starlark"),
          #buildNginx("blog"),
          #buildNginx("drone"),
          #buildNginx("git"),
          #buildNginx("remote"),
          #buildNginx("chat"),
          scp("/home/giles/gitea-drone-stack"),
          deploy(
            "docker-compose-home.yml",
            "/home/giles/gitea-drone-stack",
          ),
        ],
        [],
      ),
    ]
  if ctx.build.branch == 'do':
    return [
      pipeline(
        'do-deploy',
        [
          build("guacamole-postgresql"),
          build("letsencrypt-nginx"),
          buildHome(),
          buildNginx("blog"),
          buildNginx("drone"),
          buildNginx("git"),
          buildNginx("remote"),
          buildNginx("chat"),
          scp("~/stack-deploy"),
          #deploy("docker-compose-do.yml", "~/stack-deploy"),
        ],
        [],
      ),
    ]