@matechat/core/MarkdownCard/MermaidService-BAyBWx9t.js

前端智能化场景解决方案UI库，轻松构建你的AI应用。

class n {
  constructor(i = {}) {
    this.config = i, this.mermaidInstance = null, this.isLoading = !1, this.lastValidResult = "";
  }
  async loadMermaid() {
    if (this.mermaidInstance)
      return this.mermaidInstance;
    if (this.isLoading)
      return new Promise((i) => {
        const t = () => {
          this.mermaidInstance ? i(this.mermaidInstance) : setTimeout(t, 50);
        };
        t();
      });
    this.isLoading = !0;
    try {
      const { default: i } = await import("mermaid");
      return i.initialize({
        theme: this.config.theme || "default",
        startOnLoad: !1,
        suppressErrorRendering: !0,
        ...this.config
      }), this.mermaidInstance = i, i;
    } catch (i) {
      throw console.error("Failed to load mermaid:", i), new Error("Failed to load mermaid library");
    } finally {
      this.isLoading = !1;
    }
  }
  async renderMermaid(i, t = "light") {
    try {
      const e = await this.loadMermaid();
      this.config.theme !== t && (this.config.theme = t, e.initialize({
        startOnLoad: !1,
        suppressErrorRendering: !0,
        theme: t === "dark" ? "dark" : "default",
        ...this.config
      }));
      const a = `mc_mermaid_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`, { svg: r } = await e.render(a, i);
      return this.lastValidResult = r, r;
    } catch {
      return this.lastValidResult;
    }
  }
}
export {
  n as MermaidService
};