# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
name: Duplicate Issue Detector

on:
  issues:
    types: [opened]

permissions: {}

env:
  EMBEDDING_MODEL: ${{ vars.EMBEDDING_MODEL }}
  GROQ_MODEL: ${{ vars.GROQ_MODEL }}
  GROQ_API_KEY: ${{ secrets.GROQ_API_KEY }}

jobs:
  detect-duplicate:
    runs-on: ubuntu-24.04
    if: ${{ !github.event.issue.pull_request }}
    permissions:
      issues: write
      actions: read
      contents: read

    steps:
      - name: Checkout repository
        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1

      - name: Pnpm Setup
        uses: pnpm/action-setup@41ff72655975bd51cab0327fa583b6e92b6d3061 # v4.2.0

      - name: Set up Node.js
        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
        with:
          node-version-file: 'package.json'

      - name: Get pnpm store directory
        shell: bash
        run: echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV

      - name: Setup pnpm cache
        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
        with:
          path: ${{ env.STORE_PATH }}
          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
          restore-keys: |
            ${{ runner.os }}-pnpm-store-


      - name: Cache embedding model
        uses: actions/cache@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5.0.3
        with:
          path: ~/.cache/huggingface
          key: hf-model-${{ vars.EMBEDDING_MODEL }}

      - name: Install dependencies
        working-directory: bin/duplicate-detector
        env:
          CI: true
        run: pnpm install --frozen-lockfile

      - name: Download issue index
        uses: dawidd6/action-download-artifact@5c98f0b039f36ef966fdb7dfa9779262785ecb05 # v14
        with:
          name: issue-index
          workflow: rebuild-issue-index.yml
          path: bin/duplicate-detector
          search_artifacts: true
          if_no_artifact_found: warn

      - name: Build index if missing
        working-directory: bin/duplicate-detector
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_REPOSITORY: ${{ github.repository }}
          INDEX_PATH: issue_index.json
        run: |
          if [ ! -f issue_index.json ]; then
            echo "No index found — building from scratch..."
            node build-index.mjs
          fi

      - name: Detect duplicates
        working-directory: bin/duplicate-detector
        continue-on-error: true
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_REPOSITORY: ${{ github.repository }}
          ISSUE_NUMBER: ${{ github.event.issue.number }}
          INDEX_PATH: issue_index.json
        run: node detect.mjs