/**
 * 生成系统消息，包含知识截止日期和当前日期。
 * @returns {string} 返回包含系统消息的字符串。
 */
const genSystemMessage = () => {
  return `
知识截止日期: 2023-12-01
当前日期: ${new Date().toISOString().split("T")[0]}

重要提示: 整个回复必须使用ISO代码为zh的语言
  `
}

/**
 * Inputs类用于存储和处理各种输入数据。
 */
export class Inputs {
  systemMessage: string
  title: string
  description: string
  rawSummary: string
  shortSummary: string
  filename: string
  fileContent: string
  fileDiff: string
  patches: string
  diff: string
  commentChain: string
  comment: string

  /**
   * 构造函数，初始化Inputs类的实例。
   * @param {string} [systemMessage=""] - 系统消息。
   * @param {string} [title="no title provided"] - 标题。
   * @param {string} [description="no description provided"] - 描述。
   * @param {string} [rawSummary=""] - 原始摘要。
   * @param {string} [shortSummary=""] - 简短摘要。
   * @param {string} [filename=""] - 文件名。
   * @param {string} [fileContent="file contents cannot be provided"] - 文件内容。
   * @param {string} [fileDiff="file diff cannot be provided"] - 文件差异。
   * @param {string} [patches=""] - 补丁。
   * @param {string} [diff="no diff"] - 差异。
   * @param {string} [commentChain="no other comments on this patch"] - 评论链。
   * @param {string} [comment="no comment provided"] - 评论。
   */
  constructor(
    systemMessage = "",
    title = "no title provided",
    description = "no description provided",
    rawSummary = "",
    shortSummary = "",
    filename = "",
    fileContent = "file contents cannot be provided",
    fileDiff = "file diff cannot be provided",
    patches = "",
    diff = "no diff",
    commentChain = "no other comments on this patch",
    comment = "no comment provided"
  ) {
    this.systemMessage = systemMessage || genSystemMessage()
    this.title = title
    this.description = description
    this.rawSummary = rawSummary
    this.shortSummary = shortSummary
    this.filename = filename
    this.fileContent = fileContent
    this.fileDiff = fileDiff
    this.patches = patches
    this.diff = diff
    this.commentChain = commentChain
    this.comment = comment
  }

  /**
   * 克隆当前Inputs实例。
   * @returns {Inputs} 返回当前对象的副本。
   */
  clone(): Inputs {
    return new Inputs(
      this.systemMessage,
      this.title,
      this.description,
      this.rawSummary,
      this.shortSummary,
      this.filename,
      this.fileContent,
      this.fileDiff,
      this.patches,
      this.diff,
      this.commentChain,
      this.comment
    )
  }

  /**
   * 渲染内容，将占位符替换为实际值。
   * @param {string} content - 包含占位符的内容。
   * @returns {string} 返回替换后的内容。
   */
  render(content: string): string {
    if (!content) {
      return ""
    }

    const replacements = {
      $system_message: this.systemMessage,
      $title: this.title,
      $description: this.description,
      $raw_summary: this.rawSummary,
      $short_summary: this.shortSummary,
      $filename: this.filename,
      $file_content: this.fileContent,
      $file_diff: this.fileDiff,
      $patches: this.patches,
      $diff: this.diff,
      $comment_chain: this.commentChain,
      $comment: this.comment,
    }

    for (const [key, value] of Object.entries(replacements)) {
      if (value) {
        content = content.replace(key, value)
      }
    }

    return content
  }
}