import { serve } from '@hono/node-server'
import { serveStatic } from '@hono/node-server/serve-static'
import { existsSync } from 'node:fs'
import { join } from 'node:path'
import { createApp } from './app.ts'
import { loadConfig } from './config.ts'
import { openDatabase } from './db/client.ts'

const config = loadConfig()
const database = await openDatabase(config.databaseUrl)
const app = createApp({ db: database.db, config })

// In production the server also serves the built web app.
if (existsSync(join(config.staticDir, 'index.html'))) {
  app.use(
    '/*',
    serveStatic({
      root: config.staticDir,
      onFound: (path, c) => {
        if (path.includes('/assets/')) c.header('Cache-Control', 'public, max-age=31536000, immutable')
      },
    }),
  )
  app.get('*', serveStatic({ path: join(config.staticDir, 'index.html') })) // client-side routes
}

const server = serve({ fetch: app.fetch, port: config.port }, ({ port }) => {
  console.log(`Open SafetyLog EHS listening on port ${port}, public URL ${config.publicUrl} (database: ${config.databaseUrl.replace(/\/\/[^@]*@/, '//***@')})`)
})

for (const signal of ['SIGINT', 'SIGTERM'] as const) {
  process.on(signal, () => {
    server.close(async () => {
      await database.close()
      process.exit(0)
    })
  })
}