# Probe the highest allowed dependency versions, then open issues/PRs from the passing updates.
name: Python - Dependency Range Validation

on:
  workflow_dispatch:

permissions:
  contents: write
  issues: write
  pull-requests: write

env:
  UV_CACHE_DIR: /tmp/.uv-cache

jobs:
  dependency-range-validation:
    name: Dependency Range Validation
    runs-on: ubuntu-latest
    env:
      # For now only run 3.13, if we do encounter situations where there are mismatches between packages and python versions (other then 3.10 and 3.14 which are known to not be able to install everything)
      # then we will have to reevaluate.
      UV_PYTHON: "3.13"
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Set up python and install the project
        uses: ./.github/actions/python-setup
        with:
          python-version: ${{ env.UV_PYTHON }}
          os: ${{ runner.os }}
        env:
          UV_CACHE_DIR: /tmp/.uv-cache

      - name: Run dependency range validation
        id: validate_ranges
        # Keep workflow running so we can still publish diagnostics from this run.
        continue-on-error: true
        run: uv run poe validate-dependency-bounds-project --mode upper --package "*"
        working-directory: ./python

      - name: Upload dependency range report
        # Always publish the report so failures are inspectable even when validation fails.
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: dependency-range-results
          path: python/scripts/dependencies/dependency-range-results.json
          if-no-files-found: warn

      - name: Create issues for failed dependency candidates
        # Always process the report so failed candidates create actionable tracking issues.
        if: always()
        uses: actions/github-script@v8
        with:
          script: |
            const fs = require("fs")
            const reportPath = "python/scripts/dependencies/dependency-range-results.json"

            if (!fs.existsSync(reportPath)) {
              core.warning(`No dependency range report found at ${reportPath}`)
              return
            }

            const report = JSON.parse(fs.readFileSync(reportPath, "utf8"))
            const dependencyFailures = []

            for (const packageResult of report.packages ?? []) {
              for (const dependency of packageResult.dependencies ?? []) {
                const candidateVersions = new Set(dependency.candidate_versions ?? [])
                const failedAttempts = (dependency.attempts ?? []).filter(
                  (attempt) => attempt.status === "failed" && candidateVersions.has(attempt.trial_upper)
                )
                if (!failedAttempts.length) {
                  continue
                }

                const failuresByVersion = new Map()
                for (const attempt of failedAttempts) {
                  const version = attempt.trial_upper || "unknown"
                  if (!failuresByVersion.has(version)) {
                    failuresByVersion.set(version, attempt.error || "No error output captured.")
                  }
                }

                dependencyFailures.push({
                  packageName: packageResult.package_name,
                  projectPath: packageResult.project_path,
                  dependencyName: dependency.name,
                  originalRequirements: dependency.original_requirements ?? [],
                  finalRequirements: dependency.final_requirements ?? [],
                  failedVersions: [...failuresByVersion.entries()].map(([version, error]) => ({ version, error })),
                })
              }
            }

            if (!dependencyFailures.length) {
              core.info("No failing dependency candidates found.")
              return
            }

            const owner = context.repo.owner
            const repo = context.repo.repo
            const openIssues = await github.paginate(github.rest.issues.listForRepo, {
              owner,
              repo,
              state: "open",
              per_page: 100,
            })
            const openIssueTitles = new Set(
              openIssues.filter((issue) => !issue.pull_request).map((issue) => issue.title)
            )

            const formatError = (message) => String(message || "No error output captured.").replace(/```/g, "'''")

            for (const failure of dependencyFailures) {
              const title = `Dependency validation failed: ${failure.dependencyName} (${failure.packageName})`
              if (openIssueTitles.has(title)) {
                core.info(`Issue already exists: ${title}`)
                continue
              }

              const visibleFailures = failure.failedVersions.slice(0, 5)
              const omittedCount = failure.failedVersions.length - visibleFailures.length
              const failureDetails = visibleFailures
                .map(
                  (entry) =>
                    `- \`${entry.version}\`\n\n\`\`\`\n${formatError(entry.error).slice(0, 3500)}\n\`\`\``
                )
                .join("\n\n")

              const body = [
                "Automated dependency range validation found candidate versions that failed checks.",
                "",
                `- Package: \`${failure.packageName}\``,
                `- Project path: \`${failure.projectPath}\``,
                `- Dependency: \`${failure.dependencyName}\``,
                `- Original requirements: ${
                  failure.originalRequirements.length
                    ? failure.originalRequirements.map((value) => `\`${value}\``).join(", ")
                    : "_none_"
                }`,
                `- Final requirements after run: ${
                  failure.finalRequirements.length
                    ? failure.finalRequirements.map((value) => `\`${value}\``).join(", ")
                    : "_none_"
                }`,
                "",
                "### Failed versions and errors",
                failureDetails,
                omittedCount > 0 ? `\n_Additional failed versions omitted: ${omittedCount}_` : "",
                "",
                `Workflow run: ${context.serverUrl}/${owner}/${repo}/actions/runs/${context.runId}`,
              ].join("\n")

              await github.rest.issues.create({
                owner,
                repo,
                title,
                body,
              })
              openIssueTitles.add(title)
              core.info(`Created issue: ${title}`)
            }

      - name: Refresh lockfile
        # Only refresh lockfile after a clean validation to avoid committing known-bad ranges.
        if: steps.validate_ranges.outcome == 'success'
        run: uv lock --upgrade
        working-directory: ./python

      - name: Commit and push dependency updates
        id: commit_updates
        if: steps.validate_ranges.outcome == 'success'
        run: |
          BRANCH="automation/python-dependency-range-updates"

          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git checkout -B "${BRANCH}"

          git add python/packages/*/pyproject.toml python/uv.lock
          if git diff --cached --quiet; then
            echo "has_changes=false" >> "$GITHUB_OUTPUT"
            echo "No dependency updates to commit."
            exit 0
          fi

          git commit -m "chore: update dependency ranges"
          git push --force-with-lease --set-upstream origin "${BRANCH}"
          echo "has_changes=true" >> "$GITHUB_OUTPUT"

      - name: Create or update pull request with GitHub CLI
        # Only open/update PRs for validated updates to keep automation branches trustworthy.
        if: steps.validate_ranges.outcome == 'success' && steps.commit_updates.outputs.has_changes == 'true'
        run: |
          BRANCH="automation/python-dependency-range-updates"
          PR_TITLE="Python: chore: update dependency ranges"
          PR_BODY_FILE="$(mktemp)"

          cat > "${PR_BODY_FILE}" <<'EOF'
          This PR was generated by the dependency range validation workflow.

          - Ran `uv run poe validate-dependency-bounds-project --mode upper --package "*"`
          - Updated package dependency bounds
          - Refreshed `python/uv.lock` with `uv lock --upgrade`
          EOF

          PR_NUMBER="$(gh pr list --head "${BRANCH}" --base main --state open --json number --jq '.[0].number')"
          if [ -n "${PR_NUMBER}" ]; then
            gh pr edit "${PR_NUMBER}" --title "${PR_TITLE}" --body-file "${PR_BODY_FILE}"
          else
            gh pr create --base main --head "${BRANCH}" --title "${PR_TITLE}" --body-file "${PR_BODY_FILE}"
          fi