preview.yaml

name: Create Codesphere Workspace on PR

on:
  pull_request:
    types: [opened, reopened, synchronize] # Triggers when a PR is opened, reopened, or new commits are pushed to it

jobs:
  create-workspace:
    runs-on: ubuntu-latest
    env:
      GH_TOKEN: ${{ github.token }}
      CS_TOKEN: ${{ secrets.CS_TOKEN }}
      CS_TEAM_ID: ${{ vars.CS_TEAM_ID }}
      CS_API: ${{ vars.CS_API }}
      WORKSPACE_NAME: "${{ github.event.pull_request.head.repo.name }}-preview-#${{ github.event.pull_request.number }}"
      REPO_URL: ${{ github.event.pull_request.head.repo.clone_url }}
      BRANCH_NAME: ${{ github.event.pull_request.head.ref }}
      IS_PRIVATE_REPO: true
      CODESPHERE_PLAN_ID: ${{ vars.CODESPHERE_DEFAULT_PLAN_ID || '8' }}
      WORKSPACE_TIMEOUT: '5m'

    steps:
      - name: Checkout repository (optional, for context)
        uses: actions/checkout@v4

      - name: Install Codesphere CLI
        run: |
          echo "Downloading Codesphere CLI"
          gh release download -R codesphere-cloud/cs-go -O /usr/local/bin/cs -p "*linux_amd64"
          chmod +x /usr/local/bin/cs
          cs version

      - name: Check and Get Existing Workspace ID
        id: check_get_workspace # Give this step an ID to reference its outputs
        run: |
          WORKSPACE_NAME_TO_FIND="${{ env.WORKSPACE_NAME }}"
          echo "Checking for existing workspace with name: '$WORKSPACE_NAME_TO_FIND'"

          EXISTING_WORKSPACES_OUTPUT=$(cs list workspaces)
          echo "--- cs list workspaces output ---"
          echo "$EXISTING_WORKSPACES_OUTPUT"
          echo "---------------------------------"

          # Search for the line containing the exact workspace name.
          # Use head -n 1 in case multiple lines might contain the substring (unlikely for exact name, but safe).
          MATCHING_LINE=$(echo "$EXISTING_WORKSPACES_OUTPUT" | grep -F "${WORKSPACE_NAME_TO_FIND}" | head -n 1)

          FOUND_ID=""
          if [ -n "$MATCHING_LINE" ]; then
            # Extract ID (which is the third pipe-separated field from the table body) and trim whitespace.
            # Example line: "|   30809 | 64976 | codesphere-community/FlowiseAI   |"
            # Field 1: TEAM ID, Field 2: ID, Field 3: NAME
            FOUND_ID=$(echo "$MATCHING_LINE" | awk -F'|' '{print $3}' | xargs) # xargs trims leading/trailing whitespace

            echo "Found existing workspace '$WORKSPACE_NAME_TO_FIND' with ID: '$FOUND_ID'"
            echo "exists=true" >> $GITHUB_OUTPUT
            echo "workspace_id=$FOUND_ID" >> $GITHUB_OUTPUT
          else
            echo "Workspace '$WORKSPACE_NAME_TO_FIND' does not exist."
            echo "exists=false" >> $GITHUB_OUTPUT
            echo "workspace_id=" >> $GITHUB_OUTPUT # Explicitly empty if not found
          fi

      - name: Maybe Create Codesphere Workspace
        id: create_workspace_step
        if: ${{ steps.check_get_workspace.outputs.exists == 'false' }}
        run: |
          WORKSPACE_OUTPUT=$(
            cs create workspace "${{ env.WORKSPACE_NAME }}" \
              -r "${{ env.REPO_URL }}" \
              -b "${{ env.BRANCH_NAME }}" \
              -P \
              -p ${{ env.CODESPHERE_PLAN_ID }} \
              --timeout ${{ env.WORKSPACE_TIMEOUT }}
          )

          echo "$WORKSPACE_OUTPUT"
          WORKSPACE_ID=$(echo "$WORKSPACE_OUTPUT" | grep -oP '^ID: \K\d+' | tr -d '\n\r ')
          echo "Parsed Workspace ID for check: '$WORKSPACE_ID'"

          if [ -z "$WORKSPACE_ID" ]; then
            echo "Error: Could not parse a valid Workspace ID from command output. Output was:"
            echo "$WORKSPACE_OUTPUT"
            exit 1
          fi

          echo "workspace_id=$WORKSPACE_ID" >> $GITHUB_OUTPUT

      - name: Determine Workspace ID
        id: get_final_workspace_id
        run: |
          WORKSPACE_ID_FOR_USE="${{ steps.check_get_workspace.outputs.workspace_id }}"
          if [ -z "$WORKSPACE_ID_FOR_USE" ]; then
            WORKSPACE_ID_FOR_USE="${{ steps.create_workspace_step.outputs.workspace_id }}"
          fi
          if [ -z "$WORKSPACE_ID_FOR_USE" ]; then
            echo "Error: Final Workspace ID could not be determined for subsequent operations."
            exit 1
          fi
          echo "workspace_id=$WORKSPACE_ID_FOR_USE" >> $GITHUB_OUTPUT

      - name: Update Workspace to Upstream Revision
        run: |
          WORKSPACE_ID_FOR_GIT="${{ steps.get_final_workspace_id.outputs.workspace_id }}"
          TARGET_BRANCH="${{ env.BRANCH_NAME }}"

          if [ -z "$WORKSPACE_ID_FOR_GIT" ]; then
            echo "Error: Cannot determine Workspace ID to update."
            exit 1
          fi

          if [ -z "$TARGET_BRANCH" ]; then
            echo "Error: Branch name not available for git operations."
            exit 1
          fi

          # Update branch of the Workspace
          cs git --branch $TARGET_BRANCH -w "$WORKSPACE_ID_FOR_GIT"

          echo "Updated branch of Workspace $WORKSPACE_ID_FOR_GIT to $TARGET_BRANCH"
      

      - name: Start Codesphere Pipeline
        run: |
          # Prioritize the ID from the 'check_get_workspace' step if it existed,
          # otherwise use the ID from the 'create_workspace_step' if it was newly created.
          WORKSPACE_ID_FOR_PIPELINE="${{ steps.get_final_workspace_id.outputs.workspace_id }}"

          if [ -z "$WORKSPACE_ID_FOR_PIPELINE" ]; then
            WORKSPACE_ID_FOR_PIPELINE="${{ steps.create_workspace_step.outputs.workspace_id }}"
          fi

          if [ -z "$WORKSPACE_ID_FOR_PIPELINE" ]; then
            echo "Error: Cannot determine Workspace ID to start pipeline. Was it created/found?"
            exit 1
          fi

          echo "Starting pipeline for workspace ID: $WORKSPACE_ID_FOR_PIPELINE"
          cs start pipeline -p demo prepare run -w "$WORKSPACE_ID_FOR_PIPELINE"