import type { ExposeDraft } from '../domain/expose'
import type { IExposeProvider } from './IExposeProvider'

/**
 * Entwurfsablage der Demo — in-memory, wie alle Mockup-Provider.
 *
 * Der Schlüssel ist das Paar aus Lead und Objekt: derselbe Lead kann mehrere
 * Objekte empfehlen, und jedes bekommt sein eigenes Exposé.
 */
const store = new Map<string, ExposeDraft>()

function key(leadId: string, propertyId: string): string {
  return `${leadId}::${propertyId}`
}

export const MockupExposeProvider: IExposeProvider = {
  async getDraft(leadId, propertyId) {
    return store.get(key(leadId, propertyId)) ?? null
  },

  async save(draft) {
    const saved: ExposeDraft = { ...draft, updatedAt: new Date().toISOString() }
    store.set(key(draft.leadId, draft.propertyId), saved)
    return saved
  },

  async markGenerated(draftId) {
    for (const [k, d] of store) {
      if (d.id === draftId) {
        const updated: ExposeDraft = { ...d, generatedAt: new Date().toISOString() }
        store.set(k, updated)
        return updated
      }
    }
    throw new Error(`Exposé-Entwurf ${draftId} nicht gefunden`)
  },
}