Bangladesh helpers

@dakio/sdk/bd holds the address and phone rules Dakio itself uses, so your forms agree with checkout.

import { DISTRICTS, getThanas, detectLocation, isBdPhone, normalizeBdPhone, deliveryZone, formatTaka } from '@dakio/sdk/bd'

DISTRICTS.length                                 // 64
getThanas('Dhaka')                               // ['Adabor', 'Badda', …, 'Mirpur', …]
detectLocation('House 4, Mirpur 10, Dhaka')      // { district: 'Dhaka', thana: 'Mirpur' }
isBdPhone('017-1234 5678')                       // true
normalizeBdPhone('+880 1712-345678')             // '01712345678'
deliveryZone('Gazipur')                          // 'outside_dhaka'
formatTaka(125000)                               // '৳1,25,000'

Address forms

Ask for district (a select of DISTRICTS), then thana (getThanas(district)), then the street address. Checkout requires district and city (thana). detectLocation fills both from a pasted address, which helps buyers who type everything in one line.

Phones

Checkout accepts Bangladesh mobiles: 01 + 9 digits, with or without +880 / 880, spaces or dashes. Validate with isBdPhone before submitting to save a round trip.

Delivery

deliveryZone is the same rule the quote uses: only Dhaka district is inside Dhaka; Gazipur and Narayanganj are outside. Show the charge from dakio.shipping.get(district) or the quote, never a number of your own.

Money

Prices are taka. formatTaka groups the Bangladeshi way (lakh, crore): ৳1,25,000. formatTaka(n, { bangla: true }) uses Bangla digits.