name: Apply Kernel Bypass Hack
description: >
  Patches the kernel version-check path (bad_version) to return 1 instead of 0,
  allowing kernels that would otherwise reject the build to boot.
  Disabled by default; enable by passing bypass: true at the workflow level.
inputs:
  bypass:
    description: 'Whether to apply the bypass hack'
    required: false
    type: boolean
    default: false
  version:
    description: 'Kernel config version (e.g., android14-6.1)'
    required: true
runs:
  using: composite
  steps:
    - name: Activate Bypass
      if: ${{ inputs.bypass == 'true' }}
      shell: bash
      working-directory: ${{ github.workspace }}/kernel
      run: |
        set -euo pipefail

        if [[ "${{ inputs.version }}" == "android14-6.1" \
            || "${{ inputs.version }}" == "android15-6.6" \
            || "${{ inputs.version }}" == "android16-6.12" ]]; then
          TARGET_FILE="${{ github.workspace }}/kernel/common/kernel/module/version.c"
        else
          TARGET_FILE="${{ github.workspace }}/kernel/common/kernel/module.c"
        fi

        sed -i '/bad_version:/{:a;n;/return 0;/{s/return 0;/return 1;/;b};ba}' "$TARGET_FILE"

        if ! grep -A 5 "bad_version:" "$TARGET_FILE" | grep -q "return 1;"; then
          echo "Patch failed! 'return 1;' not found at bad_version:" >&2
          grep -A 10 "bad_version:" "$TARGET_FILE" || true
          exit 1
        fi
        echo "Bypass hack applied to $TARGET_FILE"