67 lines
2.2 KiB
C#
67 lines
2.2 KiB
C#
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namespace Service.AI;
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/// <summary>
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/// 提示词模板引擎，处理占位符替换
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/// </summary>
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public class PromptTemplateEngine
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{
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/// <summary>
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/// 替换模板中的占位符
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/// </summary>
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/// <param name="template">模板字符串，支持 {{key}} 格式的占位符</param>
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/// <param name="placeholders">占位符字典，key 为占位符名称（不含 {{ }}），value 为替换值</param>
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/// <returns>替换后的字符串</returns>
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public static string ReplacePlaceholders(string template, Dictionary<string, string> placeholders)
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{
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if (string.IsNullOrEmpty(template) || placeholders == null || placeholders.Count == 0)
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{
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return template;
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}
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var result = template;
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foreach (var placeholder in placeholders)
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{
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var key = placeholder.Key;
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var value = placeholder.Value ?? string.Empty;
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result = result.Replace($"{{{{{key}}}}}", value);
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}
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return result;
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}
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/// <summary>
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/// 替换模板中的占位符（简化版本）
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/// </summary>
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/// <param name="template">模板字符串</param>
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/// <param name="categoryName">分类名称</param>
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/// <param name="categoryType">分类类型</param>
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/// <param name="colorScheme">颜色方案</param>
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/// <param name="styleStrength">风格强度（0.0-1.0）</param>
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/// <returns>替换后的字符串</returns>
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public static string ReplaceForIconGeneration(
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string template,
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string categoryName,
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string categoryType,
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string colorScheme,
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double styleStrength)
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{
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var strengthDescription = styleStrength switch
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{
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>= 0.9 => "极度简约（仅保留最核心元素）",
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>= 0.7 => "高度简约（去除所有装饰）",
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>= 0.5 => "简约（保留必要细节）",
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_ => "适中"
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};
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var placeholders = new Dictionary<string, string>
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{
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["category_name"] = categoryName,
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["category_type"] = categoryType,
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["color_scheme"] = colorScheme,
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["style_strength"] = $"{styleStrength:F1} - {strengthDescription}"
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};
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return ReplacePlaceholders(template, placeholders);
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}
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}
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