# Copyright 2026 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: "Release: Update ADk Web"

on:
  workflow_dispatch:
    inputs:
      adk_web_repo:
        description: 'Source adk-web repository'
        required: true
        default: 'google/adk-web'  # Default source repo
      adk_web_tag:
        description: 'Tag of the release to download (e.g. v1.0.0).'
        required: false
        default: ''

jobs:
  update-frontend:
    if: github.repository == 'google/adk-python'
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write

    steps:
    - name: Checkout repository
      uses: actions/checkout@v6
      with:
        persist-credentials: false

    - name: Fetch and unzip frontend assets
      run: |
        TARGET_DIR="src/google/adk/cli/browser"
        REPO="${{ github.event.inputs.adk_web_repo }}"
        TAG="${{ github.event.inputs.adk_web_tag }}"
        # Clean target directory
        rm -rf "$TARGET_DIR"/*
        mkdir -p "$TARGET_DIR"
        if [ -z "$TAG" ]; then
          echo "Fetching latest release metadata for $REPO..."
          RELEASE_JSON=$(curl -s "https://api.github.com/repos/$REPO/releases/latest")
        else
          echo "Fetching release metadata for $REPO tag $TAG..."
          RELEASE_JSON=$(curl -s "https://api.github.com/repos/$REPO/releases/tags/$TAG")
        fi
        # Extract download URL for adk-web-browser.zip
        DOWNLOAD_URL=$(echo "$RELEASE_JSON" | grep -o -E '"browser_download_url": "[^"]+"' | grep -o -E 'https://[^"]+' | grep 'adk-web-browser.zip' | head -n 1)
        if [ -z "$DOWNLOAD_URL" ]; then
          echo "Error: Could not find adk-web-browser.zip asset in the release."
          exit 1
        fi
        echo "Downloading assets from: $DOWNLOAD_URL"
        curl -L -o frontend.zip "$DOWNLOAD_URL"
        echo "Extracting assets to $TARGET_DIR..."
        unzip -o frontend.zip -d "$TARGET_DIR"
        rm frontend.zip
        echo "Assets extracted successfully."

    - name: Extract Bot Identity
      id: bot-identity
      env:
        GH_TOKEN: ${{ secrets.RELEASE_PAT }}
      run: |
        USER_JSON=$(gh api user)
        echo "name=$(echo "$USER_JSON" | jq -r '.login')" >> $GITHUB_OUTPUT
        echo "email=$(echo "$USER_JSON" | jq -r '.id')+$(echo "$USER_JSON" | jq -r '.login')@users.noreply.github.com" >> $GITHUB_OUTPUT

    - name: Create Pull Request
      uses: peter-evans/create-pull-request@v6
      with:
        token: ${{ secrets.RELEASE_PAT }}
        commit-message: "Update compiled adk web files from ${{ github.event.inputs.adk_web_repo }}@${{ github.event.inputs.adk_web_tag || 'latest' }}"
        branch: update-frontend-assets
        delete-branch: true
        title: "chore: update compiled adk web assets"
        committer: "${{ steps.bot-identity.outputs.name }} <${{ steps.bot-identity.outputs.email }}>"
        author: "${{ steps.bot-identity.outputs.name }} <${{ steps.bot-identity.outputs.email }}>"
        body: |
          This PR automatically updates the compiled adk web files in `src/google/adk/cli/browser/` using the assets from `${{ github.event.inputs.adk_web_repo }}@${{ github.event.inputs.adk_web_tag || 'latest' }}`.
          Please review the diff before merging.