---
kind: pipeline
type: docker
name: update-flake

steps:
  - name: Update flake
    image: nixos/nix
    commands:
      - echo "substituters = https://cache.nixos.org/ https://f000.backblazeb2.com/file/cache-chir-rs/" >> /etc/nix/nix.conf
      - echo "trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nixcache:8KKuGz95Pk4UJ5W/Ni+pN+v+LDTkMMFV4yrGmAYgkDg= hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs=" >> /etc/nix/nix.conf
      - |
        for job in nixos-8gb-fsn1-1 nutty-noon thinkrac installer nas; do
          nix show-derivation -r ".#hydraJobs.$job.x86_64-linux" > ../old-$job.json
        done

        nix flake update

        for job in nixos-8gb-fsn1-1 nutty-noon thinkrac installer nas; do
          nix show-derivation -r ".#hydraJobs.$job.x86_64-linux" > ../new-$job.json

          python scripts/diff-drvs.py ../old-$job.json ../new-$job.json > ../report-$job.txt
          cat report-$job.txt >> ../full-report.txt
        done
        if [ -s ../full-report.txt ]; then
          echo "Automatic flake.lock update" > ../pr-message.txt
          echo "" >> ../pr-message.txt
          for job in nixos-8gb-fsn1-1 nutty-noon thinkrac installer nas; do
            echo "## Changes for $job:" >> ../pr-message.txt
            echo '```' >> ../pr-message.txt
            cat report-$job.txt >> ../pr-message.txt
            echo '```' >> ../pr-message.txt
          done
        else
          touch ../pr-message.txt
        fi
  - name: Push git
    image: appleboy/drone-git-push
    settings:
      ssh_key:
        from_secret: SSH_KEY
      remote: gitea@git.chir.rs:darkkirb/nixos-config.git
      branch: update-flake
      force: true
      commit: true
      commit_message: Update flake
      author_name: Gitea Bot
      author_email: gitea-bot@chir.rs
  - name: Create pull request
    image: alpine:latest
    commands:
      - apk add jq curl
      - |
        echo '{ "assignee": "DarkKirb", "base": "main", "head": "update-flake", "title": "Update flake" }' | jq '.body = $body' --arg body "$(cat ../pr-message.txt)" | curl -XPOST  'https://git.chir.rs/api/v1/repos/DarkKirb/nixos-config/pulls' -H "Accept: application/json" -H "Content-Type: application/json" -H "Authorization: Bearer $AUTHORISATION" -d-
    environment:
      AUTHORISATION:
        from_secret: GITEA_KEY
trigger:
  event:
    - cron
  cron:
    - updater
---
kind: pipeline
type: docker
name: hydra-deploy

steps:
  - name: Notify hydra
    image: curlimages/curl:latest
    commands:
      - curl --get --data-urlencode "jobsets=nixos-config:nixos-config" https://hydra.chir.rs/api/push
  - name: Wait for hydra job
    image: alpine:latest
    commands:
      - apk add jq curl
      - |
          while true; do
            if [[ $(curl https://git.chir.rs/api/v1/repos/darkkirb/nixos-config/commits/$DRONE_COMMIT/status | jq '[.statuses[] | select(.target_url | contains("https://hydra.chir.rs/"))] | length') != 0 ]]; then
              exit 0
            fi
            sleep 5
          done
  - name: Wait for hydra jobs to finish
    image: alpine:latest
    commands:
      - apk add jq curl
      - |
          while true; do
            if [[ $(curl https://git.chir.rs/api/v1/repos/darkkirb/nixos-config/commits/$DRONE_COMMIT/status | jq '[.statuses[] | select(.target_url | contains("https://hydra.chir.rs/")) | select(.status == "pending") ] | length') == 0 ]]; then
              exit 0
            fi
            sleep 5
          done
  - name: Deploy successful hydra jobs
    image: alpine:latest
    commands:
      - apk add jq curl git
      - mkdir ~/.ssh
      - echo $SSH_KEY > ~/.ssh/id_ed25519
      - |
        for build in $(curl https://git.chir.rs/api/v1/repos/darkkirb/nixos-config/commits/$DRONE_COMMIT/status | jq -r '.statuses[] | select(.target_url | contains("https://hydra.chir.rs/")) | select(.status == "success ") | .target_url'); do
          JOB_JSON=$(curl -H "Accept: application/json" $build)
          PROJECT=$(echo "$JOB_JSON" | jq '.project')
          JOBSET=$(echo "$JOB_JSON" | jq '.jobset')
          JOB=$(echo "$JOB_JSON" | jq '.job')
          JOB_NAME="$PROJECT/$JOBSET/JOB"
          git branch $JOB_NAME || true
          git checkout $JOB_NAME
          git reset --hard $DRONE_COMMIT
          git push --force
        done
    environment:
      SSH_KEY:
        from_secret: SSH_KEY
trigger:
  event:
    - push