/**
 * Customer Management Tools
 */

import { z } from 'zod';
import type { LightspeedClient } from '../clients/lightspeed.js';

export function registerCustomerTools(client: LightspeedClient) {
  return [
    {
      name: 'lightspeed_list_customers',
      description: 'List all customers in Lightspeed. Supports pagination and email filtering.',
      inputSchema: z.object({
        limit: z.number().optional().describe('Number of customers to return (default 100)'),
        offset: z.number().optional().describe('Offset for pagination'),
        email: z.string().optional().describe('Filter by email address')
      }),
      handler: async (args: any) => {
        const result = await client.getCustomers(args);
        return { content: [{ type: 'text', text: JSON.stringify(result, null, 2) }] };
      }
    },
    {
      name: 'lightspeed_get_customer',
      description: 'Get a single customer by ID with all details including contact info, purchase history reference.',
      inputSchema: z.object({
        customerID: z.string().describe('The customer ID')
      }),
      handler: async (args: any) => {
        const result = await client.getCustomer(args.customerID);
        return { content: [{ type: 'text', text: JSON.stringify(result, null, 2) }] };
      }
    },
    {
      name: 'lightspeed_create_customer',
      description: 'Create a new customer in Lightspeed. Requires first name and last name at minimum.',
      inputSchema: z.object({
        firstName: z.string().describe('Customer first name'),
        lastName: z.string().describe('Customer last name'),
        email: z.string().optional().describe('Email address'),
        phone: z.string().optional().describe('Phone number'),
        mobile: z.string().optional().describe('Mobile phone number'),
        company: z.string().optional().describe('Company name'),
        address1: z.string().optional().describe('Address line 1'),
        address2: z.string().optional().describe('Address line 2'),
        city: z.string().optional().describe('City'),
        state: z.string().optional().describe('State/Province'),
        zip: z.string().optional().describe('Postal/ZIP code'),
        country: z.string().optional().describe('Country'),
        dob: z.string().optional().describe('Date of birth (YYYY-MM-DD)')
      }),
      handler: async (args: any) => {
        const { address1, address2, city, state, zip, country, ...customerData } = args;
        const customer: any = { ...customerData };
        
        if (address1 || city || state || zip || country) {
          customer.address = { address1, address2, city, state, zip, country };
        }
        
        const result = await client.createCustomer(customer);
        return { content: [{ type: 'text', text: JSON.stringify(result, null, 2) }] };
      }
    },
    {
      name: 'lightspeed_update_customer',
      description: 'Update an existing customer. Can modify any customer field including contact info and address.',
      inputSchema: z.object({
        customerID: z.string().describe('The customer ID to update'),
        firstName: z.string().optional().describe('Customer first name'),
        lastName: z.string().optional().describe('Customer last name'),
        email: z.string().optional().describe('Email address'),
        phone: z.string().optional().describe('Phone number'),
        mobile: z.string().optional().describe('Mobile phone number'),
        company: z.string().optional().describe('Company name'),
        archived: z.boolean().optional().describe('Archive the customer')
      }),
      handler: async (args: any) => {
        const { customerID, ...updates } = args;
        const result = await client.updateCustomer(customerID, updates);
        return { content: [{ type: 'text', text: JSON.stringify(result, null, 2) }] };
      }
    },
    {
      name: 'lightspeed_delete_customer',
      description: 'Delete a customer from Lightspeed. This action cannot be undone.',
      inputSchema: z.object({
        customerID: z.string().describe('The customer ID to delete')
      }),
      handler: async (args: any) => {
        const result = await client.deleteCustomer(args.customerID);
        return { content: [{ type: 'text', text: JSON.stringify(result, null, 2) }] };
      }
    },
    {
      name: 'lightspeed_search_customers',
      description: 'Search customers by name, email, or phone number.',
      inputSchema: z.object({
        query: z.string().describe('Search query (name, email, or phone)')
      }),
      handler: async (args: any) => {
        const result = await client.getCustomers({ limit: 500 });
        if (result.success) {
          const query = args.query.toLowerCase();
          const filtered = result.data.filter(c => 
            c.firstName?.toLowerCase().includes(query) ||
            c.lastName?.toLowerCase().includes(query) ||
            c.email?.toLowerCase().includes(query) ||
            c.phone?.includes(query) ||
            c.mobile?.includes(query)
          );
          return { content: [{ type: 'text', text: JSON.stringify({ success: true, data: filtered }, null, 2) }] };
        }
        return { content: [{ type: 'text', text: JSON.stringify(result, null, 2) }] };
      }
    },
    {
      name: 'lightspeed_get_customer_by_email',
      description: 'Find a customer by their email address.',
      inputSchema: z.object({
        email: z.string().describe('Customer email address')
      }),
      handler: async (args: any) => {
        const result = await client.getCustomers({ email: args.email });
        return { content: [{ type: 'text', text: JSON.stringify(result, null, 2) }] };
      }
    }
  ];
}