name: Weekly Research Strategy

on:
  schedule:
    # 7:00 AM UTC every Monday — runs autonomous research on trading strategies
    - cron: "0 7 * * 1"
  workflow_dispatch:
    inputs:
      topic:
        description: "Research topic (blank = autonomous mode)"
        required: false
        default: ""
        type: string

env:
  NODE_VERSION: "20"

jobs:
  research:
    runs-on: ubuntu-latest
    environment: TradingAgent
    timeout-minutes: 45
    permissions:
      contents: write
      pull-requests: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GH_TOKEN }}

      - name: Set up git identity
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}

      - name: Install Claude Code CLI
        run: npm install -g @anthropic-ai/claude-code

      - name: Run /research-strategy
        env:
          ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
          CI: "true"
          TOPIC: ${{ inputs.topic }}
        run: |
          if [ -n "$TOPIC" ]; then
            claude -p "/research-strategy \"$TOPIC\"" --dangerously-skip-permissions
          else
            claude -p "/research-strategy" --dangerously-skip-permissions
          fi

      - name: Check for changes
        id: changes
        run: |
          git add docs/iterations/research/ tradingagents/ docs/iterations/LEARNINGS.md || true
          if git diff --cached --quiet; then
            echo "has_changes=false" >> "$GITHUB_OUTPUT"
            echo "No changes produced by /research-strategy"
          else
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Commit changes
        if: steps.changes.outputs.has_changes == 'true'
        env:
          TOPIC: ${{ inputs.topic }}
        run: |
          DATE=$(date -u +%Y-%m-%d)
          if [ -n "$TOPIC" ]; then
            git commit -m "research(${TOPIC}): ${DATE} — automated research run"
          else
            git commit -m "research(autonomous): ${DATE} — automated research run"
          fi

      - name: Handle rolling PR
        if: steps.changes.outputs.has_changes == 'true'
        env:
          GH_TOKEN: ${{ secrets.GH_TOKEN }}
        run: |
          BRANCH="research/current"
          DATE=$(date -u +%Y-%m-%d)
          SEPARATOR="---"

          EXISTING_PR=$(gh pr list \
            --repo Aitous/TradingAgents \
            --head "$BRANCH" \
            --state open \
            --json number \
            --jq '.[0].number // empty')

          if [ -n "$EXISTING_PR" ]; then
            git fetch origin "$BRANCH" 2>/dev/null || true
            git push origin HEAD:"$BRANCH" --force-with-lease
            {
              cat docs/iterations/LEARNINGS.md
              echo ""
              echo "$SEPARATOR"
              echo "*Last updated: ${DATE} by automated research-strategy workflow*"
            } > /tmp/pr_body.md
            gh pr edit "$EXISTING_PR" --repo Aitous/TradingAgents --body-file /tmp/pr_body.md
            echo "Updated existing PR #${EXISTING_PR}"
          else
            git checkout -b "$BRANCH" 2>/dev/null || git checkout "$BRANCH"
            git push -u origin "$BRANCH" --force-with-lease
            {
              cat docs/iterations/LEARNINGS.md
              echo ""
              echo "$SEPARATOR"
              echo "*Opened: ${DATE} by automated research-strategy workflow*"
              echo "*Merge to apply research findings and reset the research cycle.*"
            } > /tmp/pr_body.md
            gh label create "automated" --color "0075ca" --description "Automated workflow" --repo Aitous/TradingAgents 2>/dev/null || true
            gh label create "research" --color "d93f0b" --description "Research findings" --repo Aitous/TradingAgents 2>/dev/null || true
            gh pr create \
              --repo Aitous/TradingAgents \
              --title "research: new strategy findings — ${DATE}" \
              --body-file /tmp/pr_body.md \
              --label "automated,research" \
              --base main
            echo "Opened new PR"
          fi