name: Validate Production Schema

on:
  pull_request:
    branches:
      - main
  push:
    branches:
      - main

jobs:
  changes:
    name: Detect schema-relevant changes
    runs-on: ubuntu-latest
    outputs:
      schema: ${{ steps.filter.outputs.schema }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Filter paths
        id: filter
        uses: dorny/paths-filter@v3
        with:
          filters: |
            schema:
              - 'shared/**'
              - 'server/**'
              - 'scripts/migrations/**'
              - '.github/workflows/validate-schema.yml'

  validate-schema:
    name: Validate Schema
    needs: changes
    runs-on: ubuntu-latest

    steps:
      - name: Skip (no schema-relevant changes)
        if: needs.changes.outputs.schema != 'true'
        run: echo "No schema-relevant changes detected; skipping validation."

      - name: Checkout code
        if: needs.changes.outputs.schema == 'true'
        uses: actions/checkout@v4

      - name: Set up Bun
        if: needs.changes.outputs.schema == 'true'
        uses: oven-sh/setup-bun@v2
        with:
          bun-version: 1.3.10

      - name: Install dependencies
        if: needs.changes.outputs.schema == 'true'
        run: bun install

      - name: Validate schema
        if: needs.changes.outputs.schema == 'true'
        env:
          DATABASE_URL: ${{ secrets.DATABASE_READ_ONLY_URL }}
          DB_MAX_CONNECTIONS: 1
        run: bun scripts/migrations/validate-schema.ts