stages:
  - build
  - push
  - deploy

variables:
  DOCKERHUB_REPO: "mws-backend"
  CONTAINER_NAME: "mws-backend"
  HOST_PORT: "2000"
  CONTAINER_PORT: "8080"
  DEPLOY_SSH_PORT: "8686"
  ASPNETCORE_ENVIRONMENT: "Production"

default:
  tags:
    - deploy
    - build

workflow:
  rules:
    - if: '$CI_COMMIT_BRANCH == "main" || $CI_COMMIT_BRANCH == "master"'
    - when: never

build:
  stage: build
  script:
    - IMAGE_BASE="$REGISTRY_USER/$DOCKERHUB_REPO"
    - docker build -t "$IMAGE_BASE:$CI_COMMIT_SHORT_SHA" -t "$IMAGE_BASE:latest" .

push:
  stage: push
  script:
    - IMAGE_BASE="$REGISTRY_USER/$DOCKERHUB_REPO"
    - echo "$REGISTRY_PASSWORD" | docker login -u "$REGISTRY_USER" --password-stdin
    - docker push "$IMAGE_BASE:$CI_COMMIT_SHORT_SHA"
    - docker push "$IMAGE_BASE:latest"
    - docker logout

deploy:
  stage: deploy
  environment:
    name: production
  before_script:
    - command -v ssh-agent >/dev/null 2>&1 || (apt-get update -y && apt-get install -y openssh-client)
    - eval "$(ssh-agent -s)"
    - chmod 600 "$SSH_PRIVATE_KEY"
    - ssh-add "$SSH_PRIVATE_KEY"
    - mkdir -p ~/.ssh && chmod 700 ~/.ssh
    - ssh-keyscan -p "$DEPLOY_SSH_PORT" -H "$DEPLOYER_HOST" >> ~/.ssh/known_hosts 2>/dev/null
    - chmod 644 ~/.ssh/known_hosts
  script:
    - IMAGE_BASE="$REGISTRY_USER/$DOCKERHUB_REPO"
    - ENV_FILE="/home/$DEPLOYER_USER/apps/$CI_PROJECT_NAME/.env"
    - ssh -p "$DEPLOY_SSH_PORT" "$DEPLOYER_USER@$DEPLOYER_HOST" "echo '$REGISTRY_PASSWORD' | docker login -u '$REGISTRY_USER' --password-stdin"
    - ssh -p "$DEPLOY_SSH_PORT" "$DEPLOYER_USER@$DEPLOYER_HOST" "docker pull '$IMAGE_BASE:$CI_COMMIT_SHORT_SHA'"
    - ssh -p "$DEPLOY_SSH_PORT" "$DEPLOYER_USER@$DEPLOYER_HOST" "docker stop '$CONTAINER_NAME' 2>/dev/null || true"
    - ssh -p "$DEPLOY_SSH_PORT" "$DEPLOYER_USER@$DEPLOYER_HOST" "docker rm '$CONTAINER_NAME' 2>/dev/null || true"
    - ssh -p "$DEPLOY_SSH_PORT" "$DEPLOYER_USER@$DEPLOYER_HOST" "test -f '$ENV_FILE' || { echo \"Thiếu $ENV_FILE trên server\"; exit 1; }"
    - ssh -p "$DEPLOY_SSH_PORT" "$DEPLOYER_USER@$DEPLOYER_HOST" "docker run -d --name '$CONTAINER_NAME' --restart unless-stopped --env-file '$ENV_FILE' -e ASPNETCORE_ENVIRONMENT='$ASPNETCORE_ENVIRONMENT' -p '$HOST_PORT:$CONTAINER_PORT' '$IMAGE_BASE:$CI_COMMIT_SHORT_SHA'"
    - ssh -p "$DEPLOY_SSH_PORT" "$DEPLOYER_USER@$DEPLOYER_HOST" "docker logout"