import Dependencies
import Foundation

/// Represents a vendor item in the database.
///
/// A vendor is parent item that contains one or more branches where purchase orders
/// can be issued to.  It is primarily a name space to group related branches together.
public struct Vendor: Codable, Equatable, Identifiable, Sendable {
  public var id: UUID
  public var name: String
  public var branches: [VendorBranch]?
  public var createdAt: Date?
  public var updatedAt: Date?

  public init(
    id: UUID,
    name: String,
    branches: [VendorBranch]? = nil,
    createdAt: Date? = nil,
    updatedAt: Date? = nil
  ) {
    self.id = id
    self.name = name
    self.branches = branches
    self.createdAt = createdAt
    self.updatedAt = updatedAt
  }
}

public extension Vendor {

  /// Represents the fields required to generate a new vendor in the database.
  struct Create: Codable, Sendable, Equatable {
    public let name: String

    public init(name: String) {
      self.name = name
    }
  }

  /// Represents the fields required to update a vendor in the database.
  struct Update: Codable, Sendable, Equatable {
    public let name: String

    public init(name: String) {
      self.name = name
    }
  }
}

#if DEBUG
  public extension Vendor.Create {
    static func generateMocks(count: Int = 5) -> [Self] {
      (0 ... count).reduce(into: [Self]()) { array, _ in
        array.append(.init(
          name: RandomNames.companyNames.randomElement()! + String(RandomNames.characterString.randomElement()!)
        ))
      }
    }

  }

#endif