e2e-balance-check.yml

name: E2E Wallet Balance Check

on:
  schedule:
    - cron: '0 * * * *' # Every hour
  workflow_dispatch: {}

permissions:
  contents: read

env:
  BASE_USDC: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
  BASE_RPC: 'https://mainnet.base.org'

jobs:
  check-balance:
    name: Check E2E Wallet USDC Balance
    runs-on: ubuntu-latest
    env:
      SLACK_FAUCETBOT_WEBHOOK_URL: ${{ secrets.SLACK_FAUCETBOT_WEBHOOK_URL }}
    steps:
      - name: Install Foundry
        uses: foundry-rs/foundry-toolchain@8789b3e21e6c11b2697f5eb56eddae542f746c10 # v1

      - name: Check USDC balance on Base
        id: usdc_balance
        run: |
          BALANCE=$(cast call --rpc-url "$BASE_RPC" "$BASE_USDC" \
            "balanceOf(address)(uint256)" \
            "${{ vars.TEST_WALLET_ADDRESS }}" | awk '{print $1}')
          echo "balance=$BALANCE" >> $GITHUB_OUTPUT
          BALANCE_HUMAN=$(echo "scale=2; $BALANCE / 1000000" | bc)
          echo "USDC on Base: $BALANCE_HUMAN ($BALANCE raw)"

      - name: Prepare alert
        id: alert
        run: |
          BALANCE="${{ steps.usdc_balance.outputs.balance }}"
          THRESHOLD="${{ vars.USDC_THRESHOLD_UNITS || '500000' }}"
          if [ "$BALANCE" -lt "$THRESHOLD" ]; then
            BALANCE_HUMAN=$(echo "scale=2; $BALANCE / 1000000" | bc)
            THRESHOLD_HUMAN=$(echo "scale=2; $THRESHOLD / 1000000" | bc)
            ALERT_TEXT="[request] Can i have ${THRESHOLD_HUMAN} USDC on Base in wallet: \
              ${{ vars.TEST_WALLET_ADDRESS }}"
            echo "should_alert=true" >> "$GITHUB_OUTPUT"
            echo "text=$ALERT_TEXT" >> "$GITHUB_OUTPUT"
            echo "::warning::$ALERT_TEXT"
          fi

      - name: Send Slack alert
        if: |
          steps.alert.outputs.should_alert == 'true' &&
          env.SLACK_FAUCETBOT_WEBHOOK_URL != ''
        uses: slackapi/slack-github-action@b0fa283ad8fea605de13dc3f449259339835fc52 # v2.1.0
        with:
          webhook: ${{ env.SLACK_FAUCETBOT_WEBHOOK_URL }}
          webhook-type: incoming-webhook
          payload: |
            {
              "text": "${{ steps.alert.outputs.text }}"
            }

      - name: Skip Slack alert (no webhook)
        if: |
          steps.alert.outputs.should_alert == 'true' &&
          env.SLACK_FAUCETBOT_WEBHOOK_URL == ''
        run: |
          echo "::warning::SLACK_FAUCETBOT_WEBHOOK_URL not configured, skipping alert"