mattermost-mobile/.github/actions/prepare-low-bandwidth/action.yml

name: Prepare Low Bandwidth Environment (MacOS & iOS Simulators only)
description: prepare any workflow for low bandwidth testing

inputs:
  test_server_url:
    description: The URL of the test server
    required: true
  device_name:
    description: The iOS simulator name
    required: true
  download_speed:
    description: The download speed limit (in Kbit/s)
    required: false
    default: "3300"
  upload_speed:
    description: The upload speed limit (in Kbit/s)
    required: false
    default: "3300"
  latency:
    description: The latency (in ms) each way
    required: false
    default: "500"


runs:
  using: composite
  steps:
      - name: delete the zip file and trash (to free up space)
        shell: bash
        run: |
          rm -rf mobile-artifacts/*.zip
          sudo rm -rf ~/.Trash/*

      - name: check disk space
        shell: bash
        run: df -h

      - name: remove protocol from SITE_1_URL
        id: remove-protocol
        shell: bash
        run: |
          echo "SITE_1_HOST=${{ inputs.test_server_url }}" | sed -e 's/http:\/\///g' -e 's/https:\/\///g' >> ${GITHUB_OUTPUT}

      - name: Throttle Bandwidth 1
        id: throttle-bandwidth-1
        continue-on-error: true
        uses: ./.github/actions/bandwidth-throttling
        with: 
          test_server_host: ${{ steps.remove-protocol.outputs.SITE_1_HOST }}
          download_speed: ${{ inputs.download_speed }}
          upload_speed: ${{ inputs.upload_speed }}
          latency: ${{ inputs.latency }}

      - name: Throttle Bandwidth 2
        if: steps.throttle-bandwidth-1.outcome != 'success'
        id: throttle-bandwidth-2
        uses: ./.github/actions/bandwidth-throttling
        with: 
          test_server_host: ${{ steps.remove-protocol.outputs.SITE_1_HOST }}
          download_speed: ${{ inputs.download_speed}}
          upload_speed: ${{ inputs.upload_speed }}
          latency: ${{ inputs.latency }}
          disable: "true"

      - name: Install mitmproxy & pm2 (process manager)
        id: install-mitmproxy-pm2
        shell: bash
        run: |
          brew install mitmproxy

          npm i -g pm2

      - name: Start mitmproxy via mitmdump and stop it (to get .mitmproxy folder)
        shell: bash
        run: |
          pm2 start mitmdump --log /Users/runner/work/mattermost-mobile/mattermost-mobile/mitmdump.log -- --allow-hosts '${{ steps.remove-protocol.outputs.SITE_1_HOST }}' --ignore-hosts 'localhost' -s /Users/runner/work/mattermost-mobile/mattermost-mobile/scripts/mitmdump-flow-parsing.py

          sleep 5;

          pm2 stop mitmdump

          # we need to wait for mitmdump to stop so it'll produce the .mitmproxy folder  
          sleep 5;

      - name: Get simulator UDID
        id: get-simulator-udid
        shell: bash
        run: |
          simulator_udid=$(xcrun simctl list devices "${{ inputs.device_name }}" -j | jq '.devices' | jq '."com.apple.CoreSimulator.SimRuntime.iOS-17-4"[0]["udid"]')
          echo "simulator_udid="$(echo $simulator_udid) >> ${GITHUB_OUTPUT}

      - name: install certificate
        shell: bash
        run: |
          sudo security add-trusted-cert -d -p ssl -p basic -k /Library/Keychains/System.keychain ~/.mitmproxy/mitmproxy-ca-cert.pem

          # must boot first before adding root cert
          xcrun simctl boot ${{ steps.get-simulator-udid.outputs.simulator_udid }}

          xcrun simctl keychain booted add-root-cert ~/.mitmproxy/mitmproxy-ca-cert.pem

          sleep 5;

      - name: show me booted simulators
        shell: bash
        run: xcrun simctl list devices booted | grep Booted