@spec active_info_for(Ecto.UUID.t(), Ecto.UUID.t()) ::
  PhoenixKitCatalogue.Schemas.ItemSupplierInfo.t() | nil

Returns the current junction row for an item/supplier pair, or nil.

"Current" means valid_to is nil. This is the function warehouse calls to check whether a receipt line's unit price diverges from the catalogued cost for the same supplier.

@spec change_supplier(PhoenixKitCatalogue.Schemas.Supplier.t(), map()) ::
  Ecto.Changeset.t(PhoenixKitCatalogue.Schemas.Supplier.t())

Returns a changeset for tracking supplier changes.

@spec create_supplier(
  map(),
  keyword()
) ::
  {:ok, PhoenixKitCatalogue.Schemas.Supplier.t()}
  | {:error, Ecto.Changeset.t(PhoenixKitCatalogue.Schemas.Supplier.t())}

Creates a supplier.

Required attributes

• :name — supplier name (1-255 chars)

Optional attributes

• :description, :website, :contact_info, :notes
• :status — "active" (default) or "inactive"
• :data — flexible JSON map

@spec delete_supplier(
  PhoenixKitCatalogue.Schemas.Supplier.t(),
  keyword()
) ::
  {:ok, PhoenixKitCatalogue.Schemas.Supplier.t()}
  | {:error, Ecto.Changeset.t(PhoenixKitCatalogue.Schemas.Supplier.t())}

Hard-deletes a supplier from the database.

@spec get_supplier(Ecto.UUID.t()) :: PhoenixKitCatalogue.Schemas.Supplier.t() | nil

Fetches a supplier by UUID. Returns nil if not found.

@spec get_supplier!(Ecto.UUID.t()) :: PhoenixKitCatalogue.Schemas.Supplier.t()

Fetches a supplier by UUID. Raises Ecto.NoResultsError if not found.

@spec list_all(keyword()) :: [map()]

Lists all suppliers from all available sources as normalized maps.

Each entry has keys :uuid, :name, :email, :phone, :website, :source (:crm_company | :crm_contact | :local). CRM companies then CRM contacts are listed first (when available), then local suppliers ordered by name.

CRM access is guarded — when PhoenixKitCRM.PartyRoles is not loaded, only local suppliers are returned.

@spec list_suppliers(keyword()) :: [PhoenixKitCatalogue.Schemas.Supplier.t()]

Lists all suppliers, ordered by name.

Options

• :status — filter by status (e.g. "active", "inactive").

@spec primary_for_item(Ecto.UUID.t()) ::
  PhoenixKitCatalogue.Schemas.ItemSupplierInfo.t() | nil

Returns the primary supplier-info row for an item, or nil if none is marked primary.

@spec resolve(Ecto.UUID.t()) :: {:ok, map()} | :error

Resolves a supplier UUID to a unified map regardless of source.

Returns {:ok, map} with keys :uuid, :name, :email, :phone, :website, :source (:crm | :local), or :error when the supplier cannot be found in any source.

The CRM branch reports the generic :crm tag rather than :crm_company / :crm_contact — PhoenixKitCRM.PartyRoles.get_supplier/1 resolves either roleable type in one call but its return shape doesn't say which; list_all/1 (backed by per-type role listings) is the source for the more specific tags used elsewhere in this module.

CRM lookup is guarded — when PhoenixKitCRM.PartyRoles is not loaded (the CRM module is an optional runtime dependency), the CRM path is skipped and only local suppliers are checked.

@spec revise_unit_cost(
  PhoenixKitCatalogue.Schemas.ItemSupplierInfo.t(),
  Decimal.t(),
  keyword()
) ::
  {:ok, PhoenixKitCatalogue.Schemas.ItemSupplierInfo.t()}
  | {:error, :not_current | Ecto.Changeset.t()}

Delegates to ItemSupplierInfos.revise_unit_cost/3.

This is the stable public surface that warehouse and other consumers should call. See ItemSupplierInfos.revise_unit_cost/3 for full documentation.

@spec update_supplier(PhoenixKitCatalogue.Schemas.Supplier.t(), map(), keyword()) ::
  {:ok, PhoenixKitCatalogue.Schemas.Supplier.t()}
  | {:error, Ecto.Changeset.t(PhoenixKitCatalogue.Schemas.Supplier.t())}

Updates a supplier with the given attributes.