# workflows.yaml — WFE self-hosting CI pipeline
#
# Demonstrates every WFE feature. Idempotent — safe to run repeatedly.
#
# Usage:
#   cargo run --example run_pipeline -p wfe -- workflows.yaml
#
# With config:
#   WFE_CONFIG='{"workspace_dir":"/path/to/wfe","registry":"sunbeam","git_remote":"origin","coverage_threshold":85}' \
#     cargo run --example run_pipeline -p wfe -- workflows.yaml
#
# TODO: Support multi-file merging — individual task files (e.g., lint.yaml,
# test.yaml, publish.yaml) that compose into a single pipeline definition.

# ─── Shared Templates ───────────────────────────────────────────────
# The _templates key is ignored by the workflow parser (extra keys are
# skipped). Anchors are resolved by serde_yaml before parsing.

_templates:
  shell_defaults: &shell_defaults
    type: shell
    config:
      shell: bash
      timeout: 5m

  long_running: &long_running
    type: shell
    config:
      shell: bash
      timeout: 30m

# ─── Workflow: preflight ───────────────────────────────────────────────

workflows:
  - id: preflight
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      cargo_ok: bool
      nextest_ok: bool
      llvm_cov_ok: bool
      docker_ok: bool
      lima_ok: bool
      buildctl_ok: bool
      git_ok: bool
    steps:
      - name: check-tools
        type: shell
        config:
          shell: bash
          timeout: 1m
          run: |
            CARGO_OK=false; NEXTEST_OK=false; LLVM_COV_OK=false
            DOCKER_OK=false; LIMA_OK=false; BUILDCTL_OK=false; GIT_OK=false

            command -v cargo >/dev/null 2>&1 && CARGO_OK=true
            command -v cargo-nextest >/dev/null 2>&1 && NEXTEST_OK=true
            command -v cargo-llvm-cov >/dev/null 2>&1 && LLVM_COV_OK=true
            command -v docker >/dev/null 2>&1 && docker info >/dev/null 2>&1 && DOCKER_OK=true
            command -v limactl >/dev/null 2>&1 && LIMA_OK=true
            command -v buildctl >/dev/null 2>&1 && BUILDCTL_OK=true
            command -v git >/dev/null 2>&1 && GIT_OK=true

            echo "Tool availability:"
            echo "  cargo:        $CARGO_OK"
            echo "  nextest:      $NEXTEST_OK"
            echo "  llvm-cov:     $LLVM_COV_OK"
            echo "  docker:       $DOCKER_OK"
            echo "  lima:         $LIMA_OK"
            echo "  buildctl:     $BUILDCTL_OK"
            echo "  git:          $GIT_OK"

            echo "##wfe[output cargo_ok=$CARGO_OK]"
            echo "##wfe[output nextest_ok=$NEXTEST_OK]"
            echo "##wfe[output llvm_cov_ok=$LLVM_COV_OK]"
            echo "##wfe[output docker_ok=$DOCKER_OK]"
            echo "##wfe[output lima_ok=$LIMA_OK]"
            echo "##wfe[output buildctl_ok=$BUILDCTL_OK]"
            echo "##wfe[output git_ok=$GIT_OK]"

            # Fail if essential tools are missing
            if [ "$CARGO_OK" = "false" ] || [ "$NEXTEST_OK" = "false" ] || [ "$GIT_OK" = "false" ]; then
              echo "ERROR: Essential tools missing (cargo, nextest, or git)"
              exit 1
            fi

  # ─── Workflow: lint ──────────────────────────────────────────────────

  - id: lint
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      fmt_ok: bool
      clippy_ok: bool
    steps:
      - name: fmt-check
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            cargo fmt --all -- --check
            echo "##wfe[output fmt_ok=true]"

      - name: clippy
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            cargo clippy --workspace -- -D warnings
            echo "##wfe[output clippy_ok=true]"

  # ─── Workflow: test-unit ─────────────────────────────────────────

  - id: test-unit
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      tests_passed: integer
      deno_tests_passed: integer
    steps:
      - name: core-tests
        <<: *long_running
        config:
          run: |
            cd "$WORKSPACE_DIR"
            cargo nextest run -P ci
            echo "##wfe[output tests_passed=true]"

      - name: deno-tests
        <<: *long_running
        config:
          run: |
            cd "$WORKSPACE_DIR"
            cargo nextest run -p wfe-yaml --features deno -P ci
            echo "##wfe[output deno_tests_passed=true]"

      - name: feature-tests
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            cargo nextest run -p wfe-yaml --features buildkit,containerd -P ci

  # ─── Workflow: test-integration ──────────────────────────────────

  - id: test-integration
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      postgres_ok: bool
      valkey_ok: bool
      opensearch_ok: bool
    steps:
      - name: docker-up
        <<: *long_running
        config:
          run: |
            # Docker runs inside a lima VM. Start it if needed.
            if ! command -v limactl >/dev/null 2>&1; then
              echo "limactl not available — skipping integration tests"
              echo "##wfe[output docker_started=false]"
              exit 0
            fi

            # Start the docker lima VM if not running
            if ! limactl list 2>/dev/null | grep -q "docker.*Running"; then
              echo "Starting docker lima VM..."
              limactl start docker 2>&1 || {
                echo "Failed to start docker VM — skipping integration tests"
                echo "##wfe[output docker_started=false]"
                exit 0
              }
            fi

            # Wait for Docker daemon to be ready
            for i in $(seq 1 30); do
              if docker info >/dev/null 2>&1; then
                break
              fi
              echo "Waiting for Docker daemon... ($i/30)"
              sleep 2
            done

            if ! docker info >/dev/null 2>&1; then
              echo "Docker daemon not ready after 60s — skipping"
              echo "##wfe[output docker_started=false]"
              exit 0
            fi

            cd "$WORKSPACE_DIR"
            docker compose up -d --wait
            echo "##wfe[output docker_started=true]"
        on_failure:
          name: docker-up-failed
          type: shell
          config:
            run: echo "Failed to start Docker services"

      - name: postgres-tests
        <<: *shell_defaults
        config:
          run: |
            if [ "$DOCKER_STARTED" = "false" ]; then
              echo "Skipping (Docker not available)"
              exit 0
            fi
            cd "$WORKSPACE_DIR"
            cargo nextest run -p wfe-postgres -P ci
            echo "##wfe[output postgres_ok=true]"

      - name: valkey-tests
        <<: *shell_defaults
        config:
          run: |
            if [ "$DOCKER_STARTED" = "false" ]; then
              echo "Skipping (Docker not available)"
              exit 0
            fi
            cd "$WORKSPACE_DIR"
            cargo nextest run -p wfe-valkey -P ci
            echo "##wfe[output valkey_ok=true]"

      - name: opensearch-tests
        <<: *shell_defaults
        config:
          run: |
            if [ "$DOCKER_STARTED" = "false" ]; then
              echo "Skipping (Docker not available)"
              exit 0
            fi
            cd "$WORKSPACE_DIR"
            cargo nextest run -p wfe-opensearch -P ci
            echo "##wfe[output opensearch_ok=true]"

    ensure:
      - name: docker-down
        <<: *shell_defaults
        config:
          run: |
            if docker info >/dev/null 2>&1; then
              cd "$WORKSPACE_DIR"
              docker compose down 2>/dev/null || true
            fi

  # ─── Workflow: test-containers ───────────────────────────────────

  - id: test-containers
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      buildkit_ok: bool
      containerd_ok: bool
    steps:
      - name: lima-up
        <<: *long_running
        config:
          run: |
            if ! command -v limactl >/dev/null 2>&1; then
              echo "limactl not available — skipping container tests"
              echo "##wfe[output lima_started=false]"
              exit 0
            fi

            # Start the wfe-test VM if not running
            if ! limactl list 2>/dev/null | grep -q "wfe-test.*Running"; then
              echo "Starting wfe-test lima VM..."
              limactl start --name=wfe-test "$WORKSPACE_DIR/test/lima/wfe-test.yaml" 2>&1 || {
                echo "Failed to start wfe-test VM — skipping container tests"
                echo "##wfe[output lima_started=false]"
                exit 0
              }
            fi

            # Wait for sockets to be available
            for i in $(seq 1 30); do
              if [ -S "$HOME/.lima/wfe-test/sock/buildkitd.sock" ]; then
                break
              fi
              echo "Waiting for buildkitd socket... ($i/30)"
              sleep 2
            done

            echo "##wfe[output lima_started=true]"

      - name: buildkit-tests
        <<: *shell_defaults
        config:
          run: |
            if [ "$LIMA_STARTED" = "false" ]; then
              echo "Skipping (Lima not available)"
              exit 0
            fi
            cd "$WORKSPACE_DIR"
            export WFE_BUILDKIT_ADDR="unix://$HOME/.lima/wfe-test/sock/buildkitd.sock"
            cargo nextest run -p wfe-buildkit -P ci
            echo "##wfe[output buildkit_ok=true]"

      - name: containerd-tests
        <<: *shell_defaults
        config:
          run: |
            if [ "$LIMA_STARTED" = "false" ]; then
              echo "Skipping (Lima not available)"
              exit 0
            fi
            cd "$WORKSPACE_DIR"
            export WFE_CONTAINERD_ADDR="unix://$HOME/.lima/wfe-test/sock/containerd.sock"
            cargo nextest run -p wfe-containerd -P ci
            echo "##wfe[output containerd_ok=true]"

    ensure:
      - name: lima-down
        <<: *shell_defaults
        config:
          run: |
            limactl stop wfe-test 2>/dev/null || true

  # ─── Workflow: test (orchestrator) ───────────────────────────────

  - id: test
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      all_passed: bool
    steps:
      - name: run-unit
        type: workflow
        config:
          workflow: test-unit
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - tests_passed
            - deno_tests_passed

      - name: run-integration
        type: workflow
        config:
          workflow: test-integration
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - postgres_ok
            - valkey_ok
            - opensearch_ok

      - name: run-containers
        type: workflow
        config:
          workflow: test-containers
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - buildkit_ok
            - containerd_ok

  # ─── Workflow: cover ─────────────────────────────────────────────

  - id: cover
    version: 1
    inputs:
      workspace_dir: string
      threshold: number?
    outputs:
      line_coverage: number
      meets_threshold: bool
    steps:
      - name: run-coverage
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            cargo llvm-cov nextest -P cover --json > /tmp/wfe-coverage.json 2>&1
            echo "##wfe[output coverage_json=/tmp/wfe-coverage.json]"

      - name: assert-threshold
        type: deno
        config:
          script: |
            const data = inputs();
            const threshold = data.threshold || 85;

            // Read the coverage JSON
            const text = await Deno.readTextFile("/tmp/wfe-coverage.json");
            const report = JSON.parse(text);

            const totals = report.data[0].totals;
            const lineCov = (totals.lines.covered / totals.lines.count * 100).toFixed(1);

            log(`Line coverage: ${lineCov}% (threshold: ${threshold}%)`);

            output("line_coverage", parseFloat(lineCov));
            output("meets_threshold", parseFloat(lineCov) >= threshold);

            if (parseFloat(lineCov) < threshold) {
              throw new Error(`Coverage ${lineCov}% is below threshold ${threshold}%`);
            }
          permissions:
            read: ["/tmp"]

  # ─── Workflow: package ───────────────────────────────────────────

  - id: package
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      packages_ok: bool
    steps:
      - name: package-all
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            for crate in wfe-core wfe-sqlite wfe-postgres wfe-opensearch wfe-valkey \
                         wfe-buildkit-protos wfe-containerd-protos wfe-buildkit wfe-containerd \
                         wfe wfe-yaml; do
              echo "Packaging $crate..."
              cargo package -p "$crate" --no-verify --allow-dirty 2>&1 || exit 1
            done
            echo "##wfe[output packages_ok=true]"

  # ─── Workflow: tag ───────────────────────────────────────────────

  - id: tag
    version: 1
    inputs:
      workspace_dir: string
    outputs:
      version: string
      tag_created: bool
      tag_already_existed: bool
    steps:
      - name: read-version
        type: deno
        config:
          script: |
            const data = inputs();
            const cargoToml = await Deno.readTextFile(data.workspace_dir + "/Cargo.toml");
            const match = cargoToml.match(/^version\s*=\s*"([^"]+)"/m);
            if (!match) throw new Error("Could not parse version from Cargo.toml");
            const version = match[1];
            log(`Detected version: ${version}`);
            output("version", version);
          permissions:
            read: ["((workspace_dir))"]

      - name: check-tag-exists
        <<: *shell_defaults
        config:
          run: |
            VERSION=$(echo "$VERSION" | tr -d '[:space:]')
            TAG="v${VERSION}"
            if git tag -l "$TAG" | grep -q "$TAG"; then
              echo "Tag $TAG already exists — skipping"
              echo "##wfe[output tag_already_existed=true]"
              echo "##wfe[output tag_created=false]"
            else
              echo "Tag $TAG does not exist — will create"
              echo "##wfe[output tag_already_existed=false]"
            fi

      - name: create-tag
        <<: *shell_defaults
        config:
          run: |
            if [ "$TAG_ALREADY_EXISTED" = "true" ]; then
              echo "Skipping tag creation (already exists)"
              echo "##wfe[output tag_created=false]"
              exit 0
            fi
            VERSION=$(echo "$VERSION" | tr -d '[:space:]')
            TAG="v${VERSION}"
            git tag -a "$TAG" -m "$TAG"
            echo "##wfe[output tag_created=true]"

  # ─── Workflow: publish ───────────────────────────────────────────

  - id: publish
    version: 1
    inputs:
      workspace_dir: string
      registry: string?
    outputs:
      published_crates: list<string>
      all_published: bool
    steps:
      - name: publish-protos
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            REGISTRY="${REGISTRY:-sunbeam}"
            PUBLISHED=""
            for crate in wfe-buildkit-protos wfe-containerd-protos; do
              echo "Publishing $crate..."
              if cargo publish -p "$crate" --registry "$REGISTRY" 2>&1; then
                PUBLISHED="$PUBLISHED $crate"
              else
                echo "Already published or failed: $crate (continuing)"
              fi
            done
            echo "##wfe[output published_protos=$PUBLISHED]"
        error_behavior:
          type: retry
          interval: 10s
          max_retries: 2

      - name: publish-core
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            REGISTRY="${REGISTRY:-sunbeam}"
            cargo publish -p wfe-core --registry "$REGISTRY" 2>&1 || echo "Already published"
            echo "##wfe[output core_published=true]"
        error_behavior:
          type: retry
          interval: 10s
          max_retries: 2

      - name: publish-providers
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            REGISTRY="${REGISTRY:-sunbeam}"
            for crate in wfe-sqlite wfe-postgres wfe-opensearch wfe-valkey; do
              echo "Publishing $crate..."
              cargo publish -p "$crate" --registry "$REGISTRY" 2>&1 || echo "Already published: $crate"
            done
            echo "##wfe[output providers_published=true]"
        error_behavior:
          type: retry
          interval: 10s
          max_retries: 2

      - name: publish-executors
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            REGISTRY="${REGISTRY:-sunbeam}"
            for crate in wfe-buildkit wfe-containerd; do
              echo "Publishing $crate..."
              cargo publish -p "$crate" --registry "$REGISTRY" 2>&1 || echo "Already published: $crate"
            done
            echo "##wfe[output executors_published=true]"

      - name: publish-framework
        <<: *shell_defaults
        config:
          run: |
            cd "$WORKSPACE_DIR"
            REGISTRY="${REGISTRY:-sunbeam}"
            for crate in wfe wfe-yaml; do
              echo "Publishing $crate..."
              cargo publish -p "$crate" --registry "$REGISTRY" 2>&1 || echo "Already published: $crate"
            done
            echo "##wfe[output all_published=true]"

    on_failure:
      - name: log-partial-publish
        <<: *shell_defaults
        config:
          run: |
            echo "WARNING: Publish partially failed. Check logs above."
            echo "##wfe[output all_published=false]"

  # ─── Workflow: release ───────────────────────────────────────────

  - id: release
    version: 1
    inputs:
      workspace_dir: string
      version: string
      git_remote: string?
    outputs:
      pushed: bool
      notes: string
    steps:
      - name: push-tags
        <<: *shell_defaults
        config:
          run: |
            REMOTE="${GIT_REMOTE:-origin}"
            git push "$REMOTE" --tags
            echo "##wfe[output pushed=true]"

      - name: generate-notes
        type: deno
        config:
          script: |
            const data = inputs();
            const version = data.version;

            // Get commits since last tag
            const cmd = new Deno.Command("git", {
              args: ["log", "--oneline", "--no-merges", "HEAD~20..HEAD"],
              stdout: "piped",
            });
            const { stdout } = await cmd.output();
            const raw = new TextDecoder().decode(stdout);

            const lines = raw.trim().split("\n").filter(l => l.length > 0);

            let notes = `# WFE v${version}\n\n`;

            const feats = lines.filter(l => l.includes("feat"));
            const fixes = lines.filter(l => l.includes("fix"));
            const tests = lines.filter(l => l.includes("test"));
            const others = lines.filter(l => !l.includes("feat") && !l.includes("fix") && !l.includes("test"));

            if (feats.length) notes += `## Features\n${feats.map(l => `- ${l}`).join("\n")}\n\n`;
            if (fixes.length) notes += `## Fixes\n${fixes.map(l => `- ${l}`).join("\n")}\n\n`;
            if (tests.length) notes += `## Tests\n${tests.map(l => `- ${l}`).join("\n")}\n\n`;
            if (others.length) notes += `## Other\n${others.map(l => `- ${l}`).join("\n")}\n\n`;

            log(notes);
            output("notes", notes);
          permissions:
            run: true

  # ─── Workflow: ci (top-level orchestrator) ───────────────────────

  - id: ci
    version: 1
    inputs:
      workspace_dir: string
      registry: string?
      git_remote: string?
      coverage_threshold: number?
    outputs:
      version: string
      all_tests_passed: bool
      coverage: number
      published: bool
      released: bool
    steps:
      - name: run-preflight
        type: workflow
        config:
          workflow: preflight
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - cargo_ok
            - nextest_ok
            - llvm_cov_ok
            - docker_ok
            - lima_ok
            - buildctl_ok
            - git_ok

      - name: run-lint
        type: workflow
        config:
          workflow: lint
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - fmt_ok
            - clippy_ok

      - name: run-tests
        type: workflow
        config:
          workflow: test
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - all_passed

      - name: run-coverage
        type: workflow
        config:
          workflow: cover
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
            threshold: ((coverage_threshold))
          outputs:
            - line_coverage
            - meets_threshold

      - name: run-package
        type: workflow
        config:
          workflow: package
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - packages_ok

      - name: run-tag
        type: workflow
        config:
          workflow: tag
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
          outputs:
            - version
            - tag_created

      - name: run-publish
        type: workflow
        config:
          workflow: publish
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
            registry: ((registry))
          outputs:
            - all_published

      - name: run-release
        type: workflow
        config:
          workflow: release
          version: 1
          inputs:
            workspace_dir: ((workspace_dir))
            version: ((version))
            git_remote: ((git_remote))
          outputs:
            - pushed
            - notes