name: Temporary Vendor Values DB Generator

# Temporary one-shot generator for the Turtle WoW static vendor database.
on:
  push:
    branches: [classicapi-enhanced]
    paths:
      - '.github/workflows/temp-vendor-values.yml'

permissions:
  contents: write

jobs:
  generate:
    if: github.actor != 'github-actions[bot]'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout ShaguTweaks
        uses: actions/checkout@v4
        with:
          ref: classicapi-enhanced

      - name: Checkout Tortoise DB Viewer
        uses: actions/checkout@v4
        with:
          repository: Xian55/tortoise-db-viewer
          path: .vendor-build/viewer

      - name: Checkout Turtle WoW SQL
        uses: actions/checkout@v4
        with:
          repository: Penqle/tortoise-wow
          path: .vendor-build/server
          sparse-checkout: |
            sql/base
            sql/database_updates
          sparse-checkout-cone-mode: false

      - name: Setup Bun
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: latest

      - name: Install viewer dependencies
        working-directory: .vendor-build/viewer
        run: bun install

      - name: Build migrated Turtle SQLite
        working-directory: .vendor-build/viewer
        env:
          SQL_DIR: ${{ github.workspace }}/.vendor-build/server/sql/base
        run: bun scripts/build-db.mjs

      - name: Regenerate Vendor Values table
        shell: python
        run: |
          import re
          import sqlite3
          from pathlib import Path

          db_path = Path('.vendor-build/viewer/public/data/tortoise.sqlite')
          target = Path('mods/vendor-values.lua')

          con = sqlite3.connect(db_path)
          rows = con.execute(
              'SELECT entry, sell_price FROM items WHERE sell_price > 0 ORDER BY entry'
          ).fetchall()
          con.close()

          entries = [f'[{item_id}]={price}' for item_id, price in rows]
          lines = ['  ' + ', '.join(entries[i:i + 6]) + ',' for i in range(0, len(entries), 6)]
          block = (
              '-- Vendor prices generated from Penqle/tortoise-wow through the migrated Tortoise DB Viewer build.\n'
              '-- Values are per-item vendor sell prices in copper; unsellable (0-price) items are omitted.\n'
              'local data = {\n' + '\n'.join(lines) + '\n}\n\n'
          )

          text = target.read_text(encoding='utf-8')
          pattern = r'(?:-- Vendor prices generated.*?\n-- Values are per-item.*?\n)?local data = \{\n.*?\n\}\n\n'
          new_text, count = re.subn(pattern, block, text, count=1, flags=re.S)
          if count != 1:
              raise SystemExit(f'Could not replace Vendor Values data table (matches={count})')

          target.write_text(new_text, encoding='utf-8', newline='\n')
          print(f'Generated {len(rows)} sellable item prices')
          print(f'Highest item ID: {rows[-1][0] if rows else 0}')
          print(f'File size: {target.stat().st_size} bytes')

      - name: Commit generated database
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add mods/vendor-values.lua
          git diff --cached --stat
          git diff --cached --quiet && exit 0
          git commit -m "Update Vendor Values database for Turtle WoW 1.18.1"
          git push origin HEAD:classicapi-enhanced