import assert from "assert";
import { RawEvent, NormalizedEvent } from "../../types";

export default (event: RawEvent): NormalizedEvent<"intercom"> => {
  assert(event, `Intercom:ConversationParts null event: ${event}`);
  assert(
    event.id,
    `Intercom:ConversationParts event is missing the required field id ${event}`
  );
  assert(
    event.created_at,
    `Intercom:ConversationParts event is missing the required field created_at ${event}`
  );

  if (!event.id) {
    console.error(
      `Conversation Part event is missing the required field conversation_message.id: ${event}`
    );
  }
  if (!event.created_at) {
    console.error(
      `Conversation Part event is missing the required field created_at: ${event}`
    );
  }

  const getAuthor = event =>
    (event.author && (event.author.name || event.author.email || "Unknown")) ||
    "Unknown";

  const getText = event =>
    ({
      comment: event.body || `Comment by '${getAuthor(event)}'`,
      participant_added: `'${getAuthor(event)}' Joined the Conversation`
    }[event.part_type] || event.body);

  return {
    id: `intercom|${event.id}`,
    ts: event.created_at * 1000 || Date.parse(event.created_at),
    user_info: {
      source_user_id: event.author.id || null,
      user_id: null,
      name: null,
      email: event.author.email || null,
      ip: null,
      avatar: null,
      nickname: null,
      phone: null,
      city: null,
      continent_code: null,
      country: null,
      postal_code: null,
      region: null,
      timezone: null,
      country_code: null,
      address_line1: null,
      address_line2: null,
      user_agent: null,
      is_employee: event.author.type === "admin",
      title: null,
      birthday: null,
      company: {
        name: null,
        id: null,
        industry: null,
        employee_count: null,
        plan: null
      },
      created_at: null,
      age: null,
      gender: null,
      website: null,
      custom_attributes: null
    },
    text: getText(event),
    href: event.parent
      ? `https://app.intercom.io/a/apps/_/conversations/${event.parent}`
      : null,
    is_bad: false,
    direction: event.author.type === "admin" ? "outbound" : "inbound",
    source: "intercom",
    stream: "conversation_parts"
  };
};