name: "manual-approval-cross"
description: "Manual approval for Github & Gitea with reminders + Apprise notifications"
branding:
  icon: "check-circle"
  color: "green"

inputs:
  token:
    description: Token with repo access (GITHUB_TOKEN or GITEA_TOKEN)
    required: true

  approvers:
    description: "Comma-separated list of approvers (usernames)"
    required: true

  approval_keywords:
    description: "Approval keywords"
    default: "approve,approved,lgtm,yes"

  denial_keywords:
    description: "Denial keywords"
    default: "deny,denied,no"

  poll_interval:
    description: "Seconds between polling issue comments"
    default: "20"

  reminder_interval:
    description: "Seconds between reminders (0 = disable reminders)"
    default: "600"

  apprise_urls:
    description: "Comma-separated Apprise URLs (optional)"
    default: ""

  apprise_api:
    description: "URL to apprise-api endpoint (optional)"
    default: ""

outputs:
  approved:
    description: Approval response
    value: ${{ steps.wait.outputs.approved }}

runs:
  using: "composite"
  steps:
    # Detect platform
    - id: detect
      shell: bash
      run: |
        URL="${{ github.server_url }}"
        if [[ "$URL" =~ gitea ]]; then
            echo "platform=gitea" >> $GITHUB_OUTPUT
        else
            echo "platform=github" >> $GITHUB_OUTPUT
        fi
        echo "api_url=${URL}/api/v1" >> $GITHUB_OUTPUT

    # Create approval issue
    - id: create-issue
      shell: bash
      env:
        TOKEN: ${{ inputs.token }}
        APPROVERS: ${{ inputs.approvers }}
      run: |
        title="Manual approval required"
        body="Approvers: ${APPROVERS}

        Workflow **${{ github.workflow }}** requires approval.

        **Approval keywords:** ${{ inputs.approval_keywords }}
        **Denial keywords:**   ${{ inputs.denial_keywords }}

        Please reply with a keyword on this issue.
        "

        ASSIGNEES_JSON=$(jq -nc --arg csv "$APPROVERS" '$csv | split(",")')

        json=$(jq -n \
          --arg title "$title" \
          --arg body "$body" \
          --argjson assignees "$ASSIGNEES_JSON" \
          '{title:$title, body:$body, assignees:$assignees}')

        resp=$(curl -s -X POST \
          -H "Authorization: token $TOKEN" \
          -H "Content-Type: application/json" \
          -d "$json" \
          "${{ steps.detect.outputs.api_url }}/repos/${{ github.repository }}/issues")

        issue_number=$(echo "$resp" | jq -r '.number // .index')

        echo "issue=$issue_number" >> $GITHUB_OUTPUT

    # Notification helper function
    - id: notify
      shell: bash
      if: always()
      env:
        APPRISE_URLS: ${{ inputs.apprise_urls }}
        APPRISE_API: ${{ inputs.apprise_api }}
      run: |
        msg="$1"

        # Apprise CLI URLs
        if [[ -n "$APPRISE_URLS" ]]; then
          IFS=',' read -r -a urls <<< "$APPRISE_URLS"
          for u in "${urls[@]}"; do
            apprise -b "$msg" -t "Manual Approval" "$u" || true
          done
        fi

        # Apprise-API server
        if [[ -n "$APPRISE_API" ]]; then
          curl -s -X POST "$APPRISE_API" \
            -H "Content-Type: application/json" \
            -d "{\"title\": \"Manual Approval\", \"body\": \"$msg\"}" || true
        fi

      # note: the script expects $1, so we will call it with "run: echo 'message' | ./.github/actions/.../notify"

    # Wait for approval with reminder support
    - id: wait
      shell: bash
      env:
        TOKEN: ${{ inputs.token }}
        PLATFORM: ${{ steps.detect.outputs.platform }}
        API_URL: ${{ steps.detect.outputs.api_url }}
        ISSUE: ${{ steps.create-issue.outputs.issue }}
        APPROVERS: ${{ inputs.approvers }}
        REMINDER_INTERVAL: ${{ inputs.reminder_interval }}
        POLL_INTERVAL: ${{ inputs.poll_interval }}
      run: |
        IFS=',' read -r -a approver_list <<< "$APPROVERS"

        approved_kws=(${ { inputs.approval_keywords }//,/ })
        denied_kws=(${ { inputs.denial_keywords }//,/ })

        last_reminder=$(date +%s)
        ISSUE_URL="${API_URL}/repos/${{ github.repository }}/issues/$ISSUE"

        # Send first notification
        echo "::group::Initial notification"
        echo "Issue #$ISSUE created for manual approval"
        echo "::endgroup::"

        # Run notifications in a reusable function  
        notify_func() {
          msg="$1"
          echo "::notice::$msg"
          bash $GITHUB_ACTION_PATH/notify "$msg"
        }

        notify_func "Approval required on issue #$ISSUE"

        while true; do
          comments=$(curl -s \
             -H "Authorization: token $TOKEN" \
             "$ISSUE_URL/comments")

          declare -A state
          for u in "${approver_list[@]}"; do state[$u]="pending"; done

          count=$(echo "$comments" | jq 'length')
          for ((i=0; i<count; i++)); do
            user=$(echo "$comments" | jq -r ".[$i].user.login")
            body=$(echo "$comments" | jq -r ".[$i].body" | tr '[:upper:]' '[:lower:]')

            for k in "${approved_kws[@]}"; do
              [[ "$body" =~ ^$k[.!]?$ ]] && state[$user]="approved"
            done
            for k in "${denied_kws[@]}"; do
              [[ "$body" =~ ^$k[.!]?$ ]] && state[$user]="denied"
            done
          done

          # Check denial
          for u in "${!state[@]}"; do
            if [[ "${state[$u]}" == "denied" ]]; then
              notify_func "Approval denied by $u on issue #$ISSUE"
              echo "approved=false" >> $GITHUB_OUTPUT
              exit 1
            fi
          done

          # Check full approval
          all_ok=true
          for u in "${!state[@]}"; do
            [[ "${state[$u]}" != "approved" ]] && all_ok=false
          done

          if $all_ok; then
            notify_func "All approvers approved issue #$ISSUE"
            echo "approved=true" >> $GITHUB_OUTPUT
            break
          fi

          # Send reminder
          if (( REMINDER_INTERVAL > 0 )); then
            now=$(date +%s)
            since=$(( now - last_reminder ))
            if (( since >= REMINDER_INTERVAL )); then
              pending=""
              for u in "${!state[@]}"; do
                [[ "${state[$u]}" == "pending" ]] && pending+="$u "
              done
              notify_func "Reminder: approval still pending for [$pending] on issue #$ISSUE"
              last_reminder=$now
            fi
          fi

          sleep "$POLL_INTERVAL"
        done

    # Close issue
    - id: close
      shell: bash
      env:
        TOKEN: ${{ inputs.token }}
        API_URL: ${{ steps.detect.outputs.api_url }}
        ISSUE: ${{ steps.create-issue.outputs.issue }}
      run: |
        curl -s -X PATCH \
          -H "Authorization: token $TOKEN" \
          -H "Content-Type: application/json" \
          -d '{"state":"closed"}' \
          "$API_URL/repos/${{ github.repository }}/issues/$ISSUE" >/dev/null || true