name: Release

on:
  push:
    branches:
      - main
      - next
      - 'v*.*.x'
  workflow_dispatch:
    inputs:
      snapshot:
        description: 'Snapshot tag (e.g. "snapshot"). Leave empty for normal release.'
        required: false
        default: ''
        type: string

permissions: {}

concurrency:
  group: ${{ github.workflow }}-${{ github.ref_name }}
  cancel-in-progress: false

env:
  BETTER_AUTH_TELEMETRY_ENDPOINT: ${{ vars.BETTER_AUTH_TELEMETRY_ENDPOINT }}

jobs:
  release:
    if: >
      (github.event_name != 'workflow_dispatch' || inputs.snapshot == '') &&
      github.repository_owner == 'better-auth' &&
      (github.event_name != 'workflow_dispatch' || github.ref == 'refs/heads/main' || github.ref == 'refs/heads/next' || (startsWith(github.ref, 'refs/heads/v') && endsWith(github.ref, '.x')))
    runs-on: ubuntu-latest
    timeout-minutes: 45
    environment: Release
    permissions:
      contents: write
      pull-requests: write
      id-token: write
    env:
      # The release bot's auto-commit must not be gated by the local pre-commit hooks.
      LEFTHOOK: "0"
    steps:
      - name: Generate App Token
        id: app-token
        uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0
        if: vars.RELEASE_APP_ID != ''
        with:
          app-id: ${{ vars.RELEASE_APP_ID }}
          private-key: ${{ secrets.RELEASE_APP_PRIVATE_KEY }}
          permission-contents: write
          permission-pull-requests: write

      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          fetch-depth: 0
          persist-credentials: false
          token: ${{ steps.app-token.outputs.token || secrets.GITHUB_TOKEN }}

      - uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8

      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version-file: '.nvmrc'
          registry-url: 'https://registry.npmjs.org'
          package-manager-cache: false

      - run: pnpm install --frozen-lockfile

      - name: Guard next branch pre-release state
        id: guard
        if: github.ref_name == 'next'
        run: |
          if [ ! -f .changeset/pre.json ]; then
            echo "::warning::next branch is not in pre-release mode (promote in progress). Skipping release."
            echo "skip=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Determine npm dist-tag
        id: npm-tag
        run: |
          REF="${GITHUB_REF_NAME}"
          if [[ "$REF" == "main" ]]; then
            echo "tag=latest" >> "$GITHUB_OUTPUT"
          elif [[ "$REF" =~ ^v([0-9]+)\.([0-9]+)\.x$ ]]; then
            TAG="release-${BASH_REMATCH[1]}.${BASH_REMATCH[2]}"
            echo "tag=$TAG" >> "$GITHUB_OUTPUT"
          elif [ "$REF" = "next" ]; then
            echo "tag=" >> "$GITHUB_OUTPUT"
          else
            echo "::error::Unsupported release branch ${REF}"
            exit 1
          fi
        env:
          GITHUB_REF_NAME: ${{ github.ref_name }}

      - name: Detect release commit
        id: release-candidate
        run: |
          CURRENT_VERSION=$(jq -r '.version' packages/better-auth/package.json)
          pnpm --filter @better-auth/release-tooling release-notes candidate \
            --version "$CURRENT_VERSION" \
            --branch "$GITHUB_SHA"

      - name: Resolve approved release notes
        id: approved-notes
        if: steps.guard.outputs.skip != 'true' && steps.release-candidate.outputs.release == 'true'
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token || secrets.GITHUB_TOKEN }}
          VERSION: ${{ steps.release-candidate.outputs.version }}
          VERSION_COMMIT: ${{ steps.release-candidate.outputs.version_commit }}
          RELEASE_APP_ID: ${{ vars.RELEASE_APP_ID }}
        run: |
          if [[ ! "$VERSION_COMMIT" =~ ^[0-9a-f]{40}$ ]]; then
            echo "::error::Release version commit is not a valid SHA"
            exit 1
          fi
          PR_NUMBER=""
          for COMMIT_SHA in "$VERSION_COMMIT" $(git show -s --format='%P' "$VERSION_COMMIT"); do
            PULLS=$(gh api "repos/${GITHUB_REPOSITORY}/commits/${COMMIT_SHA}/pulls" \
              -H 'Accept: application/vnd.github+json')
            PR_NUMBER=$(echo "$PULLS" | jq -r --arg base "$GITHUB_REF_NAME" \
              '[.[] | select(.merged_at != null) | select(.base.ref == $base) | select((.head.ref | startswith("changeset-release/")) or (.head.ref == "next" and .base.ref == "main"))] | last | .number // empty')
            [ -n "$PR_NUMBER" ] && break
          done
          if [ -z "$PR_NUMBER" ]; then
            echo "::error::Could not find the merged Version or promotion PR"
            exit 1
          fi

          PR=$(gh api "repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}")
          PR_HEAD_SHA=$(echo "$PR" | jq -r '.head.sha')
          RELEASE_COMMIT=$(echo "$PR" | jq -r '.merge_commit_sha // empty')
          if [[ ! "$RELEASE_COMMIT" =~ ^[0-9a-f]{40}$ ]]; then
            echo "::error::Release PR merge commit is not a valid SHA"
            exit 1
          fi
          COMMENTS=$(gh api --paginate "repos/${GITHUB_REPOSITORY}/issues/${PR_NUMBER}/comments?per_page=100" | jq -s 'add')
          if [ -n "$RELEASE_APP_ID" ]; then
            COMMENT=$(echo "$COMMENTS" | jq -c --arg app "$RELEASE_APP_ID" \
              '[.[] | select((.performed_via_github_app.id | tostring) == $app) | select(.body | startswith("<!-- better-auth-release-notes:v1 -->"))] | sort_by(.updated_at) | last // empty')
          else
            COMMENT=$(echo "$COMMENTS" | jq -c \
              '[.[] | select(.user.login == "github-actions[bot]") | select(.body | startswith("<!-- better-auth-release-notes:v1 -->"))] | sort_by(.updated_at) | last // empty')
          fi
          if [ -z "$COMMENT" ]; then
            {
              echo "### Approved release notes are missing"
              echo ""
              echo "Comment \`/release-notes\` on merged PR #${PR_NUMBER}, review the generated preview, then re-run this failed Release workflow."
            } >> "$GITHUB_STEP_SUMMARY"
            echo "::error::No approved release notes comment found on PR #${PR_NUMBER}"
            exit 1
          fi

          COMMENT_FILE="$RUNNER_TEMP/release-notes-comment.md"
          NOTES_FILE="$RUNNER_TEMP/release-notes-approved.md"
          echo "$COMMENT" | jq -r '.body' > "$COMMENT_FILE"
          pnpm --filter @better-auth/release-tooling release-notes:comment extract \
            --version "$VERSION" \
            --head "$PR_HEAD_SHA" \
            --comment "$COMMENT_FILE" \
            --output "$NOTES_FILE"
          if [ "$GITHUB_SHA" != "$RELEASE_COMMIT" ]; then
            {
              echo "### Release retry requires the original workflow run"
              echo ""
              echo "- Version: \`v${VERSION}\`"
              echo "- Release commit: \`${RELEASE_COMMIT}\`"
              echo "- Current workflow commit: \`${GITHUB_SHA}\`"
              echo ""
              echo "Re-run the original failed Release workflow so npm packages and the GitHub tag are built from the approved release commit."
            } >> "$GITHUB_STEP_SUMMARY"
            echo "::error::Current commit does not match the approved release commit"
            exit 1
          fi
          {
            echo "pr_number=$PR_NUMBER"
            echo "release_commit=$RELEASE_COMMIT"
            echo "notes_path=$NOTES_FILE"
          } >> "$GITHUB_OUTPUT"

      - name: Reject release commits with pending changesets
        if: steps.guard.outputs.skip != 'true' && steps.release-candidate.outputs.release == 'true'
        run: |
          if pnpm --filter @better-auth/release-tooling release-notes \
            check-changesets --branch "$GITHUB_SHA"; then
            exit 0
          fi

          {
            echo "### Unsafe release merge"
            echo ""
            echo "This release commit still contains changesets that were not included in the approved Version PR. Publishing it would ship unapproved changes under the current version."
            echo ""
            echo "Revert this release merge, let Changesets regenerate the Version PR, then run \`/release-notes\` again."
          } >> "$GITHUB_STEP_SUMMARY"
          echo "::error::Release commit contains unconsumed changesets"
          exit 1

      - name: Create Release Pull Request or Publish
        id: changesets
        if: steps.guard.outputs.skip != 'true'
        uses: changesets/action@a45c4d594aa4e2c509dc14a9f2b3b67ba3780d0d # v1.9.0
        with:
          version: pnpm ci:version
          publish: pnpm ci:release
          title: "chore: release"
          commit: "chore: release"
          createGithubReleases: false
          prDraft: always
        env:
          GITHUB_TOKEN: ${{ steps.app-token.outputs.token || secrets.GITHUB_TOKEN }}
          NPM_CONFIG_TAG: ${{ steps.npm-tag.outputs.tag }}

      - name: Rename release PR with version
        if: steps.changesets.outputs.pullRequestNumber
        continue-on-error: true
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token || secrets.GITHUB_TOKEN }}
          PR_NUMBER: ${{ steps.changesets.outputs.pullRequestNumber }}
        run: |
          PR_DATA=$(gh pr view "$PR_NUMBER" --repo "$GITHUB_REPOSITORY" --json headRefName,headRefOid)
          HEAD_REF=$(echo "$PR_DATA" | jq -r '.headRefName')
          HEAD_SHA=$(echo "$PR_DATA" | jq -r '.headRefOid')
          git fetch origin "$HEAD_REF"
          VERSION=$(git show "${HEAD_SHA}:packages/better-auth/package.json" | jq -r '.version')
          gh pr edit "$PR_NUMBER" --title "chore: release v${VERSION}"

          BODY=$(gh pr view "$PR_NUMBER" --repo "$GITHUB_REPOSITORY" --json body --jq '.body')
          if ! printf '%s' "$BODY" | grep -qF '<!-- release-notes-draft -->'; then
            # shellcheck disable=SC2016
            NOTICE='<!-- release-notes-draft -->
          > [!IMPORTANT]
          > Keep this PR in Draft. Run `/release-notes` to generate and review the release notes.
          > The release bot marks the PR ready when the preview matches the current head. Do not manually mark it ready.'
            BODY_FILE=$(mktemp)
            printf '%s\n\n%s\n' "$NOTICE" "$BODY" > "$BODY_FILE"
            gh pr edit "$PR_NUMBER" --repo "$GITHUB_REPOSITORY" --body-file "$BODY_FILE"
            rm -f "$BODY_FILE"
          fi

      - name: Create GitHub Release
        if: steps.guard.outputs.skip != 'true' && steps.release-candidate.outputs.release == 'true' && steps.changesets.outputs.hasChangesets == 'false'
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token || secrets.GITHUB_TOKEN }}
          VERSION: ${{ steps.release-candidate.outputs.version }}
          RELEASE_COMMIT: ${{ steps.approved-notes.outputs.release_commit }}
          NOTES_FILE: ${{ steps.approved-notes.outputs.notes_path }}
        run: |
          if [ -z "$VERSION" ] || [ ! -s "$NOTES_FILE" ]; then
            echo "::error::Approved release notes are missing"
            exit 1
          fi
          TAG="v${VERSION}"

          PRERELEASE_FLAG=""
          if echo "$VERSION" | grep -q '-'; then
            PRERELEASE_FLAG="--prerelease"
          fi
          if gh release view "$TAG" --repo "$GITHUB_REPOSITORY" >/dev/null 2>&1; then
            gh release edit "$TAG" --repo "$GITHUB_REPOSITORY" \
              --notes-file "$NOTES_FILE" $PRERELEASE_FLAG
            echo "Updated release ${TAG}"
          else
            gh release create "$TAG" --repo "$GITHUB_REPOSITORY" \
              --title "$TAG" \
              --notes-file "$NOTES_FILE" \
              --target "$RELEASE_COMMIT" \
              $PRERELEASE_FLAG
            echo "Created release ${TAG}"
          fi

      - name: Sync main to next via PR
        if: github.ref_name == 'main'
        env:
          GH_TOKEN: ${{ steps.app-token.outputs.token || secrets.GITHUB_TOKEN }}
        run: |
          git fetch origin next || { echo "next branch does not exist, skipping"; exit 0; }

          AHEAD=$(git rev-list --count origin/next..origin/main)
          if [ "$AHEAD" -eq 0 ]; then
            echo "No new commits to sync"
            exit 0
          fi
          echo "Found $AHEAD commit(s) to sync from main to next"

          EXISTING=$(gh pr list --base next --head "${GITHUB_REPOSITORY_OWNER}:main" --state open --repo "$GITHUB_REPOSITORY" --json number --jq '.[0].number // empty')
          if [ -n "$EXISTING" ]; then
            echo "Sync PR #$EXISTING already exists ($AHEAD commits pending)"
            gh pr edit "$EXISTING" --repo "$GITHUB_REPOSITORY" --add-label devops || true
          else
            SYNC_BODY="Brings stable fixes from main into the next branch."
            SYNC_BODY="$SYNC_BODY\n\n**This PR must be merged by a maintainer using 'Create a merge commit'** (not squash, not rebase). This preserves individual fix commits and their verified signatures."
            SYNC_BODY="$SYNC_BODY\n\nIf there are conflicts, resolve them by keeping next's versions for \`package.json\` files (next is always ahead of main in version numbers)."

            gh pr create \
              --base next \
              --head main \
              --repo "$GITHUB_REPOSITORY" \
              --title "chore: sync main to next" \
              --label devops \
              --body "$(echo -e "$SYNC_BODY")" || true

            EXISTING=$(gh pr list --base next --head "${GITHUB_REPOSITORY_OWNER}:main" --state open --repo "$GITHUB_REPOSITORY" --json number --jq '.[0].number // empty')
          fi

          # Check for merge conflicts (GitHub computes merge state asynchronously)
          if [ -n "$EXISTING" ]; then
            sleep 10
            for _ in 1 2 3 4 5; do
              MERGEABLE=$(gh pr view "$EXISTING" --repo "$GITHUB_REPOSITORY" --json mergeable --jq '.mergeable')
              [ "$MERGEABLE" != "UNKNOWN" ] && break
              sleep 10
            done
            if [ "$MERGEABLE" = "CONFLICTING" ]; then
              gh pr edit "$EXISTING" --repo "$GITHUB_REPOSITORY" --add-label "has-conflicts" || true
              echo "::warning::Sync PR #$EXISTING has merge conflicts. Resolve by keeping next's versions for package.json files."
            elif [ "$MERGEABLE" = "MERGEABLE" ]; then
              gh pr edit "$EXISTING" --repo "$GITHUB_REPOSITORY" --remove-label "has-conflicts" 2>/dev/null || true
            fi
          fi

  snapshot:
    if: github.event_name == 'workflow_dispatch' && inputs.snapshot != '' && github.repository_owner == 'better-auth'
    runs-on: ubuntu-latest
    timeout-minutes: 45
    environment: Release
    permissions:
      contents: read
      id-token: write
    steps:
      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
        with:
          fetch-depth: 0
          persist-credentials: false

      - uses: pnpm/action-setup@0e279bb959325dab635dd2c09392533439d90093 # v6.0.8

      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version-file: '.nvmrc'
          registry-url: 'https://registry.npmjs.org'
          package-manager-cache: false

      - run: pnpm install --frozen-lockfile

      - name: Version snapshot
        env:
          SNAPSHOT_TAG: ${{ inputs.snapshot }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          if [ -f .changeset/pre.json ]; then
            echo "::error::Snapshots are not supported on branches in pre-release mode."
            exit 1
          fi
          if echo "$SNAPSHOT_TAG" | grep -qE '^(latest|next|beta|rc)$'; then
            echo "::error::Snapshot tag '$SNAPSHOT_TAG' conflicts with a stable dist-tag. Use a descriptive name."
            exit 1
          fi
          pnpm changeset version --snapshot "$SNAPSHOT_TAG"

      - name: Build
        run: pnpm build

      - name: Publish snapshot
        env:
          SNAPSHOT_TAG: ${{ inputs.snapshot }}
        run: pnpm changeset publish --no-git-tag --tag "$SNAPSHOT_TAG"