name: E2E API Smoke Test
# Extracted from ci.yml so workflow-level concurrency can protect this job
# from run-level cancellation (issue #458).
#
# Trigger model (revised 2026-04-29):
#
# Always FIRES on push/pull_request to staging+main. Real work is gated
# per-step on `needs.detect-changes.outputs.api` — when paths under
# `workspace-server/`, `tests/e2e/`, or this workflow file haven't
# changed, the no-op step alone runs and emits SUCCESS for the
# `E2E API Smoke Test` check, satisfying branch protection without
# spending CI cycles. See the in-job comment on the `e2e-api` job for
# why this is one job (not two-jobs-sharing-name) and the 2026-04-29
# PR #2264 incident that drove the consolidation.
#
# Parallel-safety (Class B Hongming-owned CICD red sweep, 2026-05-08)
# -------------------------------------------------------------------
# Same substrate hazard as PR #98 (handlers-postgres-integration). Our
# Gitea act_runner runs with `container.network: host` (operator host
# `/opt/molecule/runners/config.yaml`), which means:
#
#   * Two concurrent runs both try to bind their `-p 15432:5432` /
#     `-p 16379:6379` host ports — the second postgres/redis FATALs
#     with `Address in use` and `docker run` returns exit 125 with
#     `Conflict. The container name "/molecule-ci-postgres" is already
#     in use by container ...`. Verified in run a7/2727 on 2026-05-07.
#   * The fixed container names `molecule-ci-postgres` / `-redis` (the
#     pre-fix shape) collide on name AS WELL AS port. The cleanup-with-
#     `docker rm -f` at the start of the second job KILLS the first
#     job's still-running postgres/redis.
#
# Fix shape (mirrors PR #98's bridge-net pattern, adapted because
# platform-server is a Go binary on the host, not a containerised
# step):
#
#   1. Unique container names per run:
#         pg-e2e-api-${RUN_ID}-${RUN_ATTEMPT}
#         redis-e2e-api-${RUN_ID}-${RUN_ATTEMPT}
#      `${RUN_ID}-${RUN_ATTEMPT}` is unique even across reruns of the
#      same run_id.
#   2. Ephemeral host port per run (`-p 0:5432`), then read the actual
#      bound port via `docker port` and export DATABASE_URL/REDIS_URL
#      pointing at it. No fixed host-port → no port collision.
#   3. `127.0.0.1` (NOT `localhost`) in URLs — IPv6 first-resolve was
#      the original flake fixed in #92 and the script's still IPv6-
#      enabled.
#   4. `if: always()` cleanup so containers don't leak when test steps
#      fail.
#
# Issue #94 items #2 + #3 (also fixed here):
#   * Pre-pull `alpine:latest` so the platform-server's provisioner
#     (`internal/handlers/container_files.go`) can stand up its
#     ephemeral token-write helper without a daemon.io round-trip.
#   * Create `molecule-monorepo-net` bridge network if missing so the
#     provisioner's container.HostConfig {NetworkMode: ...} attach
#     succeeds.
# Item #1 (timeouts) — evidence on recent runs (77/3191, ae/4270, 0e/
# 2318) shows Postgres ready in 3s, Redis in 1s, Platform in 1s when
# they DO come up. Timeouts are not the bottleneck; not bumped.
#
# Item explicitly NOT fixed here: failing test `Status back online`
# fails because the platform's langgraph workspace template image
# (ghcr.io/molecule-ai/workspace-template-langgraph:latest) returns
# 403 Forbidden post-2026-05-06 GitHub org suspension. That is a
# template-registry resolution issue (ADR-002 / local-build mode) and
# belongs in a separate change that touches workspace-server, not
# this workflow file.

on:
  push:
    branches: [main, staging]
  pull_request:
    branches: [main, staging]
  workflow_dispatch:

concurrency:
  # Per-SHA grouping (changed 2026-04-28 from per-ref). Per-ref had the
  # same auto-promote-staging brittleness as e2e-staging-canvas — back-
  # to-back staging pushes share refs/heads/staging, so the older push's
  # queued run gets cancelled when a newer push lands. Auto-promote-
  # staging then sees `completed/cancelled` for the older SHA and stays
  # put; the newer SHA's gates may eventually save the day, but if the
  # newer push gets cancelled too, we deadlock.
  #
  # See e2e-staging-canvas.yml's identical concurrency block for the full
  # rationale and the 2026-04-28 incident reference.
  group: e2e-api-${{ github.event.pull_request.head.sha || github.sha }}
  cancel-in-progress: false

jobs:
  detect-changes:
    runs-on: ubuntu-latest
    outputs:
      api: ${{ steps.decide.outputs.api }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1
        id: filter
        with:
          filters: |
            api:
              - 'workspace-server/**'
              - 'tests/e2e/**'
              - '.github/workflows/e2e-api.yml'
      - id: decide
        # Always run real work for manual dispatch — no diff context to
        # filter against and ops dispatching this expects the suite to
        # actually exercise the platform.
        run: |
          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
            echo "api=true" >> "$GITHUB_OUTPUT"
          else
            echo "api=${{ steps.filter.outputs.api }}" >> "$GITHUB_OUTPUT"
          fi

  # ONE job (no job-level `if:`) that always runs and reports under the
  # required-check name `E2E API Smoke Test`. Real work is gated per-step
  # on `needs.detect-changes.outputs.api`. Reason: GitHub registers a
  # check run for every job that matches `name:`, and a job-level
  # `if: false` produces a SKIPPED check run. Branch protection treats
  # all check runs with a matching context name on the latest commit as a
  # SET — any SKIPPED in the set fails the required-check eval, even with
  # SUCCESS siblings. Verified 2026-04-29 on PR #2264 (staging→main):
  # 4 check runs (2 SKIPPED + 2 SUCCESS) at the head SHA blocked
  # promotion despite all real work succeeding. Collapsing to a single
  # always-running job with conditional steps emits exactly one SUCCESS
  # check run regardless of paths filter — branch-protection-clean.
  e2e-api:
    needs: detect-changes
    name: E2E API Smoke Test
    runs-on: ubuntu-latest
    timeout-minutes: 15
    env:
      # Unique per-run container names so concurrent runs on the host-
      # network act_runner don't collide on name OR port.
      # `${RUN_ID}-${RUN_ATTEMPT}` stays unique across reruns of the
      # same run_id. PORT is set later (after docker port lookup) since
      # we let Docker assign an ephemeral host port.
      PG_CONTAINER: pg-e2e-api-${{ github.run_id }}-${{ github.run_attempt }}
      REDIS_CONTAINER: redis-e2e-api-${{ github.run_id }}-${{ github.run_attempt }}
      PORT: "8080"
    steps:
      - name: No-op pass (paths filter excluded this commit)
        if: needs.detect-changes.outputs.api != 'true'
        run: |
          echo "No workspace-server / tests/e2e / workflow changes — E2E API gate satisfied without running tests."
          echo "::notice::E2E API Smoke Test no-op pass (paths filter excluded this commit)."
      - if: needs.detect-changes.outputs.api == 'true'
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - if: needs.detect-changes.outputs.api == 'true'
        uses: actions/setup-go@40f1582b2485089dde7abd97c1529aa768e1baff # v5
        with:
          go-version: 'stable'
          cache: true
          cache-dependency-path: workspace-server/go.sum
      - name: Pre-pull alpine + ensure provisioner network (Issue #94 items #2 + #3)
        if: needs.detect-changes.outputs.api == 'true'
        run: |
          # Provisioner uses alpine:latest for ephemeral token-write
          # containers (workspace-server/internal/handlers/container_files.go).
          # Pre-pull so the first provision in test_api.sh doesn't race
          # the daemon's pull cache. Idempotent — `docker pull` is a no-op
          # when the image is already present.
          docker pull alpine:latest >/dev/null
          # Provisioner attaches workspace containers to
          # molecule-monorepo-net (workspace-server/internal/provisioner/
          # provisioner.go::DefaultNetwork). The bridge already exists on
          # the operator host's docker daemon — `network create` is
          # idempotent via `|| true`.
          docker network create molecule-monorepo-net >/dev/null 2>&1 || true
          echo "alpine:latest pre-pulled; molecule-monorepo-net ensured."
      - name: Start Postgres (docker)
        if: needs.detect-changes.outputs.api == 'true'
        run: |
          # Defensive cleanup — only matches THIS run's container name,
          # so it cannot kill a sibling run's postgres. (Pre-fix the
          # name was static and this rm hit other runs' containers.)
          docker rm -f "$PG_CONTAINER" 2>/dev/null || true
          # `-p 0:5432` requests an ephemeral host port; we read it back
          # below and export DATABASE_URL.
          docker run -d --name "$PG_CONTAINER" \
            -e POSTGRES_USER=dev -e POSTGRES_PASSWORD=dev -e POSTGRES_DB=molecule \
            -p 0:5432 postgres:16 >/dev/null
          # Resolve the host-side port assignment. `docker port` prints
          # `0.0.0.0:NNNN` (and on host-net runners may also print an
          # IPv6 line — take the first IPv4 line).
          PG_PORT=$(docker port "$PG_CONTAINER" 5432/tcp | awk -F: '/^0\.0\.0\.0:/ {print $2; exit}')
          if [ -z "$PG_PORT" ]; then
            # Fallback: any first line. Some Docker versions print only
            # one line.
            PG_PORT=$(docker port "$PG_CONTAINER" 5432/tcp | head -1 | awk -F: '{print $NF}')
          fi
          if [ -z "$PG_PORT" ]; then
            echo "::error::Could not resolve host port for $PG_CONTAINER"
            docker port "$PG_CONTAINER" 5432/tcp || true
            docker logs "$PG_CONTAINER" || true
            exit 1
          fi
          # 127.0.0.1 (NOT localhost) — IPv6 first-resolve flake (#92).
          echo "PG_PORT=${PG_PORT}" >> "$GITHUB_ENV"
          echo "DATABASE_URL=postgres://dev:dev@127.0.0.1:${PG_PORT}/molecule?sslmode=disable" >> "$GITHUB_ENV"
          echo "Postgres host port: ${PG_PORT}"
          for i in $(seq 1 30); do
            if docker exec "$PG_CONTAINER" pg_isready -U dev >/dev/null 2>&1; then
              echo "Postgres ready after ${i}s"
              exit 0
            fi
            sleep 1
          done
          echo "::error::Postgres did not become ready in 30s"
          docker logs "$PG_CONTAINER" || true
          exit 1
      - name: Start Redis (docker)
        if: needs.detect-changes.outputs.api == 'true'
        run: |
          docker rm -f "$REDIS_CONTAINER" 2>/dev/null || true
          docker run -d --name "$REDIS_CONTAINER" -p 0:6379 redis:7 >/dev/null
          REDIS_PORT=$(docker port "$REDIS_CONTAINER" 6379/tcp | awk -F: '/^0\.0\.0\.0:/ {print $2; exit}')
          if [ -z "$REDIS_PORT" ]; then
            REDIS_PORT=$(docker port "$REDIS_CONTAINER" 6379/tcp | head -1 | awk -F: '{print $NF}')
          fi
          if [ -z "$REDIS_PORT" ]; then
            echo "::error::Could not resolve host port for $REDIS_CONTAINER"
            docker port "$REDIS_CONTAINER" 6379/tcp || true
            docker logs "$REDIS_CONTAINER" || true
            exit 1
          fi
          echo "REDIS_PORT=${REDIS_PORT}" >> "$GITHUB_ENV"
          echo "REDIS_URL=redis://127.0.0.1:${REDIS_PORT}" >> "$GITHUB_ENV"
          echo "Redis host port: ${REDIS_PORT}"
          for i in $(seq 1 15); do
            if docker exec "$REDIS_CONTAINER" redis-cli ping 2>/dev/null | grep -q PONG; then
              echo "Redis ready after ${i}s"
              exit 0
            fi
            sleep 1
          done
          echo "::error::Redis did not become ready in 15s"
          docker logs "$REDIS_CONTAINER" || true
          exit 1
      - name: Build platform
        if: needs.detect-changes.outputs.api == 'true'
        working-directory: workspace-server
        run: go build -o platform-server ./cmd/server
      - name: Start platform (background)
        if: needs.detect-changes.outputs.api == 'true'
        working-directory: workspace-server
        run: |
          # DATABASE_URL + REDIS_URL exported by the start-postgres /
          # start-redis steps point at this run's per-run host ports.
          ./platform-server > platform.log 2>&1 &
          echo $! > platform.pid
      - name: Wait for /health
        if: needs.detect-changes.outputs.api == 'true'
        run: |
          for i in $(seq 1 30); do
            if curl -sf http://127.0.0.1:8080/health > /dev/null; then
              echo "Platform up after ${i}s"
              exit 0
            fi
            sleep 1
          done
          echo "::error::Platform did not become healthy in 30s"
          cat workspace-server/platform.log || true
          exit 1
      - name: Assert migrations applied
        if: needs.detect-changes.outputs.api == 'true'
        run: |
          tables=$(docker exec "$PG_CONTAINER" psql -U dev -d molecule -tAc "SELECT count(*) FROM information_schema.tables WHERE table_schema='public' AND table_name='workspaces'")
          if [ "$tables" != "1" ]; then
            echo "::error::Migrations did not apply"
            cat workspace-server/platform.log || true
            exit 1
          fi
          echo "Migrations OK"
      - name: Run E2E API tests
        if: needs.detect-changes.outputs.api == 'true'
        run: bash tests/e2e/test_api.sh
      - name: Run notify-with-attachments E2E
        if: needs.detect-changes.outputs.api == 'true'
        run: bash tests/e2e/test_notify_attachments_e2e.sh
      - name: Run priority-runtimes E2E (claude-code + hermes — skips when keys absent)
        if: needs.detect-changes.outputs.api == 'true'
        run: bash tests/e2e/test_priority_runtimes_e2e.sh
      - name: Run poll-mode + since_id cursor E2E (#2339)
        if: needs.detect-changes.outputs.api == 'true'
        run: bash tests/e2e/test_poll_mode_e2e.sh
      - name: Run poll-mode chat upload E2E (RFC #2891)
        if: needs.detect-changes.outputs.api == 'true'
        run: bash tests/e2e/test_poll_mode_chat_upload_e2e.sh
      - name: Dump platform log on failure
        if: failure() && needs.detect-changes.outputs.api == 'true'
        run: cat workspace-server/platform.log || true
      - name: Stop platform
        if: always() && needs.detect-changes.outputs.api == 'true'
        run: |
          if [ -f workspace-server/platform.pid ]; then
            kill "$(cat workspace-server/platform.pid)" 2>/dev/null || true
          fi
      - name: Stop service containers
        # always() so containers don't leak when test steps fail. The
        # cleanup is best-effort: if the container is already gone
        # (e.g. concurrent rerun race), don't fail the job.
        if: always() && needs.detect-changes.outputs.api == 'true'
        run: |
          docker rm -f "$PG_CONTAINER" 2>/dev/null || true
          docker rm -f "$REDIS_CONTAINER" 2>/dev/null || true
