ryan
ae25409e56
Motivation: 统一 crypto-strategy 与 trade-signal 两类交易信号的模板字段，使同一套通知模板可复用；字段缺失或为空时不再导致渲染报错或输出空行，通知内容更整洁。 Changes: * 渲染器缺失字段改为按空值处理，新增 line 函数实现空值整行省略 * crypto-strategy 信号补充止盈价、止损价、平均价、收益额等模板字段 * trade-signal 信号保留原始报文中的额外字段以适配统一模板 * 修复结构化日志将 error 作为值直接输出导致的格式问题
61 lines
1.1 KiB
Go
61 lines
1.1 KiB
Go
package engine
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import (
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"bytes"
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"fmt"
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"strings"
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"text/template"
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)
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type Renderer struct{}
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func NewRenderer() *Renderer {
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return &Renderer{}
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}
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func (r *Renderer) Render(tmplContent string, data map[string]interface{}) (string, error) {
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tmpl, err := template.New("notify").
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Option("missingkey=zero").
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Funcs(template.FuncMap{"line": templateLine}).
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Parse(tmplContent)
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if err != nil {
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return "", fmt.Errorf("parse template: %w", err)
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}
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var buf bytes.Buffer
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if err := tmpl.Execute(&buf, data); err != nil {
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return "", fmt.Errorf("execute template: %w", err)
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}
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return buf.String(), nil
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}
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// templateLine renders "label：value\n" or empty if value is missing/zero.
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func templateLine(label string, v any) string {
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if isEmptyValue(v) {
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return ""
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}
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return label + "：" + fmt.Sprint(v) + "\n"
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}
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func isEmptyValue(v any) bool {
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switch t := v.(type) {
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case nil:
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return true
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case string:
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return strings.TrimSpace(t) == ""
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case bool:
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return !t
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case int:
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return t == 0
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case int32:
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return t == 0
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case int64:
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return t == 0
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case float32:
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return t == 0
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case float64:
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return t == 0
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default:
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return false
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}
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}
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