import { describe, it, expect } from 'vitest'
import { TonTransactionBuilder } from './ton-transaction-builder'

describe('TonTransactionBuilder', () => {
  const builder = new TonTransactionBuilder()

  describe('buildNativeTransfer', () => {
    it('builds a native transfer request with required fields', () => {
      const result = builder.buildNativeTransfer({
        to: 'UQBxyz',
        amount: '1000000000',
        from: 'UQBabc'
      })

      expect(result.messages).toHaveLength(1)
      expect(result.messages[0].address).toBe('UQBxyz')
      expect(result.messages[0].amount).toBe('1000000000')
      expect(result.network).toBe('-239')
      expect(result.validUntil).toBeGreaterThan(0)
    })

    it('uses senderRawAddress as from when provided', () => {
      const result = builder.buildNativeTransfer(
        { to: 'UQBxyz', amount: '500000000', from: 'UQBfriendly' },
        '0:abcdef1234567890'
      )

      expect(result.from).toBe('0:abcdef1234567890')
    })

    it('falls back to request.from when senderRawAddress is not provided', () => {
      const result = builder.buildNativeTransfer({
        to: 'UQBxyz',
        amount: '500000000',
        from: 'UQBfriendly'
      })

      expect(result.from).toBe('UQBfriendly')
    })

    it('includes payload when provided', () => {
      const payload = 'dGVzdA==' // base64 for "test"
      const result = builder.buildNativeTransfer({
        to: 'UQBxyz',
        amount: '1000000000',
        from: 'UQBabc',
        payload
      })

      expect(result.messages[0].payload).toBe(payload)
    })

    it('includes stateInit when provided', () => {
      const stateInit = 'dGVzdA=='
      const result = builder.buildNativeTransfer({
        to: 'UQBxyz',
        amount: '1000000000',
        from: 'UQBabc',
        stateInit
      })

      expect(result.messages[0].stateInit).toBe(stateInit)
    })

    it('includes sendMode when provided', () => {
      const result = builder.buildNativeTransfer({
        to: 'UQBxyz',
        amount: '1000000000',
        from: 'UQBabc',
        sendMode: 128
      })

      expect(result.sendMode).toBe(128)
    })

    it('omits sendMode when not provided', () => {
      const result = builder.buildNativeTransfer({
        to: 'UQBxyz',
        amount: '1000000000',
        from: 'UQBabc'
      })

      expect(result.sendMode).toBeUndefined()
    })

    it('uses custom validUntil when provided', () => {
      const validUntil = 1700000000
      const result = builder.buildNativeTransfer({
        to: 'UQBxyz',
        amount: '1000000000',
        from: 'UQBabc',
        validUntil
      })

      expect(result.validUntil).toBe(validUntil)
    })
  })
})