import { isPlausibleEmail } from "./input-validation.js";

type DeliveryPlanInput = {
  recipientEmail?: string | null;
  subject: string;
  body: string;
  attachmentPath: string;
};

export type DeliveryPlan = {
  ready: boolean;
  needsRecipientEmail: boolean;
  command: string | null;
  sender: "luke@fiorinis.com";
  recipientEmail: string | null;
};

function shellQuote(value: string): string {
  return `'${value.replace(/'/g, `'\"'\"'`)}'`;
}

export function buildLukeDeliveryPlan(input: DeliveryPlanInput): DeliveryPlan {
  const recipientEmail = input.recipientEmail?.trim() || null;
  if (!recipientEmail || !isPlausibleEmail(recipientEmail)) {
    return {
      ready: false,
      needsRecipientEmail: true,
      command: null,
      sender: "luke@fiorinis.com",
      recipientEmail
    };
  }

  const validRecipientEmail: string = recipientEmail;
  const command = [
    "zsh ~/.openclaw/workspace/bin/gog-luke gmail send",
    `--to ${shellQuote(validRecipientEmail)}`,
    `--subject ${shellQuote(input.subject)}`,
    `--body ${shellQuote(input.body)}`,
    `--attach ${shellQuote(input.attachmentPath)}`
  ].join(" ");

  return {
      ready: true,
      needsRecipientEmail: false,
      command,
      sender: "luke@fiorinis.com",
      recipientEmail: validRecipientEmail
    };
}