import { prisma as db } from "@repo/db/client";

// ── Default template values ───────────────────────────────────────────────────
// Keep these in sync with the frontend constants in ai-chat-settings-card.tsx

export const DEFAULT_REMINDER_SMS =
  "Hi {firstName}, this is a reminder from {officeName}. You have an appointment on {appointmentDate} at {appointmentTime}. Please come to our office at {officeAddress}. Please reply YES to confirm or NO to reschedule. Thank you!";

export const DEFAULT_AI_CHAT_TEMPLATES = {
  _ai_chat_reminder_sms:         DEFAULT_REMINDER_SMS,
  _ai_chat_reminder_greeting:    "Hi! My name is Lisa, the dedicated AI assistant at {officeName}. I can confirm or reschedule your appointment and answer general questions 24/7. I will reply you message at any time you need.",
  _ai_chat_new_patient_greeting: "Hi! My name is Lisa, the dedicated AI assistant at {officeName}. I can help you schedule an appointment, check your insurance, and answer general questions 24/7. How can I help you today?",
  _ai_chat_general_fallback:     "Hi! My name is Lisa, the dedicated AI assistant at {officeName}. How can I help you today?",
  _ai_chat_reschedule_greeting:  "Hi! My name is Lisa, the dedicated AI assistant at {officeName}. I can help you find a new appointment time that works for you. Would you like to reschedule your appointment?",
};

export const DEFAULT_SMS_TEMPLATE_LIST = JSON.stringify([
  {
    id: "default-appt-reminder",
    name: "Appointment Reminder SMS",
    body: DEFAULT_REMINDER_SMS,
  },
  {
    id: "default-follow-up",
    name: "Follow up reminder",
    body: "Hi {firstName}, this is a follow-up from {officeName}. We wanted to check in with you after your recent appointment. Please don't hesitate to call us if you have any questions.",
  },
]);

// ── Auto-seed for a single user ───────────────────────────────────────────────
// Writes defaults only for keys that are not yet set, so existing data is never
// overwritten. Safe to call on every boot.

export async function seedTemplatesForUser(userId: number): Promise<void> {
  const settings = await db.twilioSettings.findUnique({ where: { userId } });
  const existing = (settings?.templates as Record<string, string>) || {};

  const patch: Record<string, string> = {};

  for (const [key, value] of Object.entries(DEFAULT_AI_CHAT_TEMPLATES)) {
    if (!existing[key]) patch[key] = value;
  }
  if (!existing["_sms_template_list"]) {
    patch["_sms_template_list"] = DEFAULT_SMS_TEMPLATE_LIST;
  }

  if (Object.keys(patch).length === 0) return; // nothing to seed

  const updated = { ...existing, ...patch };
  await db.twilioSettings.upsert({
    where:  { userId },
    update: { templates: updated },
    create: { userId, accountSid: "", authToken: "", phoneNumber: "", templates: updated },
  });
}

// ── Seed all existing users ───────────────────────────────────────────────────

export async function seedAllUsersTemplates(): Promise<void> {
  const users = await db.user.findMany({ select: { id: true } });
  await Promise.all(users.map((u: { id: number }) => seedTemplatesForUser(u.id)));
  if (users.length > 0) {
    console.log(`✅ Seeded AI chat templates for ${users.length} user(s)`);
  }
}