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

export type TwilioSettingsData = {
  accountSid: string;
  authToken: string;
  phoneNumber: string;
  greetingMessage?: string | null;
};

export type CommunicationCreateData = {
  patientId: number;
  userId?: number;
  channel: "sms" | "voice";
  direction: "outbound" | "inbound";
  status: "queued" | "sent" | "delivered" | "failed" | "completed" | "busy" | "no_answer";
  body?: string;
  callDuration?: number;
  twilioSid?: string;
};

export const twilioStorage = {
  async getTwilioSettings(userId: number) {
    return db.twilioSettings.findUnique({ where: { userId } });
  },

  async upsertTwilioSettings(userId: number, data: TwilioSettingsData) {
    return db.twilioSettings.upsert({
      where: { userId },
      update: data,
      create: { userId, ...data },
    });
  },

  async createCommunication(data: CommunicationCreateData) {
    return db.communication.create({ data: data as any });
  },

  async getCommunicationsByPatient(patientId: number) {
    return db.communication.findMany({
      where: { patientId },
      orderBy: { createdAt: "asc" },
    });
  },

  async getTemplates(userId: number): Promise<Record<string, string>> {
    const settings = await db.twilioSettings.findUnique({ where: { userId } });
    if (!settings?.templates) return {};
    return settings.templates as Record<string, string>;
  },

  async saveTemplate(userId: number, key: string, body: string) {
    const settings = await db.twilioSettings.findUnique({ where: { userId } });
    const existing = (settings?.templates as Record<string, string>) || {};
    const updated = { ...existing, [key]: body };
    return db.twilioSettings.upsert({
      where: { userId },
      update: { templates: updated },
      create: { userId, accountSid: "", authToken: "", phoneNumber: "", templates: updated },
    });
  },

  async getAiChatTemplates(userId: number): Promise<Record<string, string>> {
    const settings = await db.twilioSettings.findUnique({ where: { userId } });
    const all = (settings?.templates as Record<string, string>) || {};
    return {
      reminderGreeting:    all["_ai_chat_reminder_greeting"]    ?? "",
      newPatientGreeting:  all["_ai_chat_new_patient_greeting"] ?? "",
      generalFallback:     all["_ai_chat_general_fallback"]     ?? "",
    };
  },

  async saveAiChatTemplates(userId: number, templates: { reminderGreeting?: string; newPatientGreeting?: string; generalFallback?: string }) {
    const settings = await db.twilioSettings.findUnique({ where: { userId } });
    const existing = (settings?.templates as Record<string, string>) || {};
    const updated: Record<string, string> = { ...existing };
    if (templates.reminderGreeting   !== undefined) updated["_ai_chat_reminder_greeting"]    = templates.reminderGreeting;
    if (templates.newPatientGreeting !== undefined) updated["_ai_chat_new_patient_greeting"]  = templates.newPatientGreeting;
    if (templates.generalFallback    !== undefined) updated["_ai_chat_general_fallback"]      = templates.generalFallback;
    return db.twilioSettings.upsert({
      where:  { userId },
      update: { templates: updated },
      create: { userId, accountSid: "", authToken: "", phoneNumber: "", templates: updated },
    });
  },

  async getRecentCommunicationsByUser(userId: number, limit = 20) {
    return db.communication.findMany({
      where: { patient: { userId } },
      orderBy: { createdAt: "desc" },
      take: limit,
      include: {
        patient: { select: { id: true, firstName: true, lastName: true, phone: true } },
      },
    });
  },
};