import { randomUUID } from 'crypto'
import type { Volume } from '../../../shared/types'
import type { SqliteDb } from '../types'
function mapRow(row: Record<string, unknown>): Volume {
  return {
    id: row.id as string,
    name: row.name as string,
    description: row.description as string,
    sortOrder: row.sort_order as number
  }
}

export class VolumeRepository {
  constructor(private db: SqliteDb) {}
  create(name: string, sortOrder: number): Volume {
    const id = randomUUID()
    this.db
      .prepare(
        `INSERT INTO volumes (id, name, sort_order) VALUES (?, ?, ?)`
      )
      .run(id, name, sortOrder)
    return this.get(id)!
  }

  get(id: string): Volume | null {
    const row = this.db.prepare('SELECT * FROM volumes WHERE id = ?').get(id) as
      | Record<string, unknown>
      | undefined
    return row ? mapRow(row) : null
  }

  list(): Volume[] {
    return (
      this.db.prepare('SELECT * FROM volumes ORDER BY sort_order').all() as Record<string, unknown>[]
    ).map(mapRow)
  }

  update(id: string, patch: { name?: string; description?: string }): Volume {
    const existing = this.get(id)
    if (!existing) throw new Error('Volume not found')
    this.db
      .prepare(
        `UPDATE volumes SET name = ?, description = ?, updated_at = datetime('now') WHERE id = ?`
      )
      .run(patch.name ?? existing.name, patch.description ?? existing.description, id)
    return this.get(id)!
  }

  delete(id: string): void {
    this.db.prepare('DELETE FROM volumes WHERE id = ?').run(id)
  }
}