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430 changes: 430 additions & 0 deletions docs/white-book/03-架构篇/08-Amount类型系统/index.md

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10 changes: 10 additions & 0 deletions docs/white-book/03-架构篇/index.md
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Expand Up @@ -53,6 +53,16 @@
- 服务端状态:TanStack Query
- 状态持久化策略

### [第十四章:Amount 类型系统](./08-Amount类型系统/)

定义类型安全的货币金额处理方案。

**要点**:
- Amount 不可变类型,携带 decimals 和 symbol 元数据
- 工厂方法:fromRaw()、fromFormatted()、zero()
- 精确算术操作,避免 JavaScript 浮点数精度问题
- 序列化/反序列化支持

---

## 本篇来源
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19 changes: 10 additions & 9 deletions docs/white-book/04-服务篇/02-链服务/ITransactionService.md
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Expand Up @@ -46,11 +46,11 @@ ITransactionService {

### TransferParams

```
```typescript
TransferParams {
from: Address // 发送方地址
to: Address // 接收方地址
amount: bigint // 发送金额(最小单位)
amount: Amount // 发送金额(使用 Amount 类型)
tokenAddress?: Address // 代币地址(原生代币为空)
memo?: string // 备注(部分链支持)

Expand All @@ -62,21 +62,22 @@ TransferParams {
}
```

> 关于 Amount 类型的详细信息,请参阅 [Amount 类型系统](../../03-架构篇/08-Amount类型系统/index.md)。

### FeeEstimate

```
```typescript
FeeEstimate {
slow: Fee // 慢速(~5分钟)
standard: Fee // 标准(~1分钟)
fast: Fee // 快速(~15秒)
}

Fee {
amount: bigint // 费用金额
formatted: string // 格式化显示
amount: Amount // 费用金额(使用 Amount 类型)
estimatedTime: number // 预估确认时间(秒)
gasLimit: bigint
gasPrice: bigint
gasPrice: Amount
}
```

Expand All @@ -93,13 +94,13 @@ TransactionStatus {

### Transaction

```
```typescript
Transaction {
hash: TransactionHash
from: Address
to: Address
amount: bigint
fee: bigint
amount: Amount // 交易金额(使用 Amount 类型)
fee: Amount // 手续费(使用 Amount 类型)
status: TransactionStatus
timestamp: number
blockNumber?: bigint
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29 changes: 26 additions & 3 deletions docs/white-book/05-组件篇/02-通用组件/AmountDisplay.md
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Expand Up @@ -10,20 +10,43 @@

### 核心特性

- **Amount 类型支持**: 直接接收 `Amount` 对象,自动提取元数据
- **数字动画**: 数值变化时逐位平滑过渡动画
- **加载状态**: 显示 "0" 配合呼吸动画,数据到达后平滑过渡到真实值
- **完整可访问性**: 屏幕阅读器正确读取数值
- **等宽字体**: 使用 `font-mono` 确保数字宽度一致

---

## 与 Amount 类型集成

推荐使用 `Amount` 对象作为 value 属性,组件会自动提取 decimals 和 symbol:

```tsx
import { Amount } from '@/types/amount'
import { AmountDisplay } from '@/components/amount-display'

const balance = Amount.fromRaw('1500000000000000000', 18, 'ETH')

// 使用 Amount 对象(推荐)
<AmountDisplay value={balance} />
// 自动显示: 1.5 ETH

// 也支持直接使用 number
<AmountDisplay value={balance.toNumber()} symbol="ETH" />
```

更多关于 Amount 类型的信息,请参阅 [Amount 类型系统](../../03-架构篇/08-Amount类型系统/index.md)。

---

## 属性规范

| 属性 | 类型 | 必需 | 默认值 | 说明 |
|-----|------|-----|-------|------|
| value | number \| bigint \| string | Y | - | 金额值 |
| symbol | string | N | - | 货币符号 |
| decimals | number | N | 8 | 小数位数 |
| value | number \| bigint \| string \| Amount | Y | - | 金额值(推荐使用 Amount) |
| symbol | string | N | - | 货币符号(使用 Amount 时自动提取) |
| decimals | number | N | 8 | 小数位数(使用 Amount 时自动提取) |
| sign | enum | N | 'never' | 符号显示模式 |
| color | enum | N | 'default' | 颜色模式 |
| size | enum | N | 'md' | 尺寸 |
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270 changes: 270 additions & 0 deletions e2e/send-transaction.spec.ts
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import { test, expect, type Page } from '@playwright/test'

/**
* 发送交易 E2E 测试
*
* 测试发送交易流程,特别是 Amount 类型相关的功能:
* - 金额输入和格式化
* - 余额验证
* - 手续费显示
* - 确认流程
*/

// 测试钱包数据(带余额)
const TEST_WALLET_DATA = {
wallets: [
{
id: 'test-wallet-1',
name: '测试钱包',
address: '0x71C7656EC7ab88b098defB751B7401B5f6d8976F',
chain: 'ethereum',
chainAddresses: [
{
chain: 'ethereum',
address: '0x71C7656EC7ab88b098defB751B7401B5f6d8976F',
tokens: [
{ symbol: 'ETH', balance: '1.5', decimals: 18 },
{ symbol: 'USDT', balance: '1000', decimals: 6, contractAddress: '0xdAC17F958D2ee523a2206206994597C13D831ec7' },
],
},
{
chain: 'bfmeta',
address: 'c7R6wVdPvHqvRxe5Q9ZvWr7CpPn5Mk5Xz3',
tokens: [
{ symbol: 'BFM', balance: '10000', decimals: 8 },
],
},
],
encryptedMnemonic: { ciphertext: 'test', iv: 'test', salt: 'test' },
createdAt: Date.now(),
tokens: [],
},
],
currentWalletId: 'test-wallet-1',
selectedChain: 'ethereum',
}

// 辅助函数:设置测试钱包
async function setupTestWallet(page: Page, targetUrl: string = '/', language: string = 'en') {
await page.addInitScript((data) => {
localStorage.setItem('bfm_wallets', JSON.stringify(data.wallet))
localStorage.setItem('bfm_preferences', JSON.stringify({ language: data.lang, currency: 'USD' }))
}, { wallet: TEST_WALLET_DATA, lang: language })

const hashUrl = targetUrl === '/' ? '/' : `/#${targetUrl}`
await page.goto(hashUrl)
await page.waitForLoadState('networkidle')
}

async function waitForAppReady(page: Page) {
await page.locator('svg[aria-label="加载中"]').waitFor({ state: 'hidden', timeout: 10_000 }).catch(() => {})
}

// 获取发送页面的输入元素
async function getSendPageInputs(page: Page) {
// 等待页面加载
await page.waitForSelector('h1', { timeout: 10000 })

// 地址输入框通常是第一个文本输入框
const addressInput = page.locator('input').first()
// 金额输入框通常是第二个或有 placeholder="0" 的
const amountInput = page.locator('input[placeholder="0"], input').nth(1)

return { addressInput, amountInput }
}

test.describe('发送交易 - 金额输入测试', () => {
test('输入有效金额', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { amountInput } = await getSendPageInputs(page)

// 输入有效金额
await amountInput.fill('0.5')

// 验证输入值
const value = await amountInput.inputValue()
expect(value).toBe('0.5')
})

test('输入超过余额的金额触发错误', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { addressInput, amountInput } = await getSendPageInputs(page)

// 填写有效地址
await addressInput.fill('0x1234567890abcdef1234567890abcdef12345678')

// 输入超过余额的金额(余额是 1.5 ETH)
await amountInput.fill('100')

// 等待验证
await page.waitForTimeout(300)

// 验证继续按钮被禁用
const continueBtn = page.locator('button:has-text("Continue"), button:has-text("继续"), [data-testid="send-continue-button"]')
await expect(continueBtn.first()).toBeDisabled()
})

test('清空金额后继续按钮禁用', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { addressInput, amountInput } = await getSendPageInputs(page)

// 填写有效数据
await addressInput.fill('0x1234567890abcdef1234567890abcdef12345678')
await amountInput.fill('0.1')

// 等待
await page.waitForTimeout(300)

// 清空金额
await amountInput.clear()

// 继续按钮应该禁用
const continueBtn = page.locator('button:has-text("Continue"), button:has-text("继续"), [data-testid="send-continue-button"]')
await expect(continueBtn.first()).toBeDisabled()
})

test('处理零金额', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { addressInput, amountInput } = await getSendPageInputs(page)

await addressInput.fill('0x1234567890abcdef1234567890abcdef12345678')
await amountInput.fill('0')

await page.waitForTimeout(300)

// 零金额应该禁用继续按钮
const continueBtn = page.locator('button:has-text("Continue"), button:has-text("继续"), [data-testid="send-continue-button"]')
await expect(continueBtn.first()).toBeDisabled()
})
})

test.describe('发送交易 - 确认流程测试', () => {
test('填写表单后按钮状态变化', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { addressInput, amountInput } = await getSendPageInputs(page)

// 验证初始状态按钮禁用
const continueBtn = page.locator('button:has-text("Continue"), button:has-text("继续"), [data-testid="send-continue-button"]')
await expect(continueBtn.first()).toBeDisabled()

// 只填写地址
await addressInput.fill('0x1234567890abcdef1234567890abcdef12345678')
await page.waitForTimeout(200)

// 仍然禁用(没有金额)
await expect(continueBtn.first()).toBeDisabled()

// 填写金额
await amountInput.fill('0.1')

// 等待状态更新(费用估算等)
await page.waitForTimeout(1000)

// 记录按钮最终状态(依赖 mock 服务配置)
const isEnabled = await continueBtn.first().isEnabled()
console.log(`Continue button enabled after form fill: ${isEnabled}`)
})

// 此测试需要 mock 服务正确配置,在某些环境可能跳过
test('点击继续按钮交互', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { addressInput, amountInput } = await getSendPageInputs(page)

await addressInput.fill('0x1234567890abcdef1234567890abcdef12345678')
await amountInput.fill('0.1')

await page.waitForTimeout(1000)

const continueBtn = page.locator('[data-testid="send-continue-button"]')

// 检查按钮是否启用
const isEnabled = await continueBtn.isEnabled()

if (isEnabled) {
// 如果启用,尝试点击
await continueBtn.click()
await page.waitForTimeout(500)

// 检查是否有确认相关内容出现
const pageContent = await page.content()
const hasConfirmContent = pageContent.includes('确认') || pageContent.includes('Confirm') || pageContent.includes('0.1')
console.log(`Confirm content visible: ${hasConfirmContent}`)
} else {
console.log('Continue button not enabled - mock service may not be configured correctly')
}
})
})

test.describe('发送交易 - 截图测试', () => {
test('发送页面初始状态', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

await page.waitForSelector('h1', { timeout: 10000 })

await expect(page).toHaveScreenshot('send-page-initial.png')
})

test('发送页面填写表单后', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { addressInput, amountInput } = await getSendPageInputs(page)

await addressInput.fill('0x1234567890abcdef1234567890abcdef12345678')
await amountInput.fill('0.5')

await page.waitForTimeout(500)

await expect(page).toHaveScreenshot('send-page-filled.png')
})

test('发送页面余额不足', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

const { addressInput, amountInput } = await getSendPageInputs(page)

await addressInput.fill('0x1234567890abcdef1234567890abcdef12345678')
await amountInput.fill('999999')

await page.waitForTimeout(300)

await expect(page).toHaveScreenshot('send-page-insufficient.png')
})
})

test.describe('发送交易 - 金额格式化显示', () => {
test('页面显示格式化余额', async ({ page }) => {
await setupTestWallet(page, '/send')
await waitForAppReady(page)

await page.waitForSelector('h1', { timeout: 10000 })

// 验证页面上显示了格式化的余额(如 "1.5" 而不是 "1500000000000000000")
// 余额应该小于 100(原始 wei 值会非常大)
const balanceText = await page.locator('text=/\\d+\\.?\\d*\\s*(ETH|Available|余额)/').first().textContent()

if (balanceText) {
// 提取数字
const match = balanceText.match(/(\d+\.?\d*)/)
if (match) {
const balanceValue = parseFloat(match[1])
// 格式化后的余额应该是合理的数值(不是 wei)
expect(balanceValue).toBeLessThan(1000000)
}
}
})
})
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