// The port the crm module's use cases are written against: the platform's CRM service, in this
// module's own words. adapters/service.ts is the one place that knows `@conusai-sdk/crm` exists, and
// it turns every refusal into the kit's app errors (`businessAppError` of
// `@conusai-kit/business`) before core sees it.

import { token } from "@conusai-kit/core"
import type { ContactView, PartyView } from "../contract/index.js"

export interface Page<T> {
  readonly rows: T[]
  readonly after?: string
}

/** What a `read` procedure may ask the service: nothing that changes a row. */
export interface CrmReads {
  /** The immutable app/environment binding UUID for attributed member references. */
  readonly bindingId: string
  listParties(query: { q?: string; after?: string; limit: number }): Promise<Page<PartyView>>
  getParty(partyId: string): Promise<PartyView>
  listContacts(partyId: string, query: { after?: string; limit: number }): Promise<Page<ContactView>>
}

export interface CrmService extends CrmReads {
  createParty(input: {
    kind: "person" | "organization"
    displayName: string
    legalName?: string
    country: string
    identifiers: { scheme: string; value: string }[]
    key: string
  }): Promise<PartyView>
  addContact(input: {
    partyId: string
    kind: "email" | "phone" | "web"
    value: string
    purposes: ContactView["purposes"]
    isPrimary: boolean
    /** `YYYY-MM-DD`: the day the contact point starts to hold. */
    effectiveFrom: string
    key: string
  }): Promise<ContactView>
}

/** The read view a `read` or `write` handler receives: the kind is a capability, not a label. */
export const crmReadsOf = (service: CrmReads): CrmReads => ({
  bindingId: service.bindingId,
  listParties: (query) => service.listParties(query),
  getParty: (partyId) => service.getParty(partyId),
  listContacts: (partyId, query) => service.listContacts(partyId, query),
})

/**
 * Bound by a composition root or a test that brings its own client (another organization, the
 * business-services fake). With nothing bound, the module calls this deployment's service.
 */
export const CRM_SERVICE = token<CrmService>("crm.service", { views: { read: crmReadsOf, write: crmReadsOf } })