import {
  RichText,
  defaultJSXConverters,
} from "@payloadcms/richtext-lexical/react";
import type { JSXConverters } from "@payloadcms/richtext-lexical/react";
import { MemeCard } from "@/src/components/MemeCard";
import { Mermaid } from "@/src/components/Mermaid";
import { LeadMagnet } from "@/src/components/LeadMagnet";
import { ComparisonRow } from "@/src/components/Landing/ComparisonRow";
import { mdxComponents } from "../content-engine/components";
import React from "react";

/**
 * Renders markdown-style inline links [text](/url) as <a> tags.
 * Used by mintelP blocks which store body text with links.
 */
function renderInlineMarkdown(text: string): React.ReactNode {
  if (!text) return null;
  const parts = text.split(/(\[[^\]]+\]\([^)]+\)|<Marker>[^<]*<\/Marker>)/);
  return parts.map((part, i) => {
    const linkMatch = part.match(/\[([^\]]+)\]\(([^)]+)\)/);
    if (linkMatch) {
      return (
        <a
          key={i}
          href={linkMatch[2]}
          className="text-slate-900 underline underline-offset-4 hover:text-slate-600 transition-colors"
        >
          {linkMatch[1]}
        </a>
      );
    }
    const markerMatch = part.match(/<Marker>([^<]*)<\/Marker>/);
    if (markerMatch) {
      return (
        <mark key={i} className="bg-yellow-100/60 px-1 rounded">
          {markerMatch[1]}
        </mark>
      );
    }
    return <React.Fragment key={i}>{part}</React.Fragment>;
  });
}

const jsxConverters: JSXConverters = {
  ...defaultJSXConverters,
  // Override paragraph to filter out leftover <TableOfContents /> raw text
  paragraph: ({ node, nodesToJSX }: any) => {
    const children = node?.children;
    if (
      children?.length === 1 &&
      children[0]?.type === "text" &&
      children[0]?.text?.trim()?.startsWith("<") &&
      children[0]?.text?.trim()?.endsWith("/>")
    ) {
      return null; // suppress raw JSX component text like <TableOfContents />
    }
    return <p>{nodesToJSX({ nodes: children })}</p>;
  },
  blocks: {
    memeCard: ({ node }: any) => (
      <div className="my-8">
        <MemeCard
          template={node.fields.template}
          captions={node.fields.captions}
        />
      </div>
    ),
    mermaid: ({ node }: any) => (
      <div className="my-8">
        <Mermaid
          id={node.fields.id}
          title={node.fields.title}
          showShare={node.fields.showShare}
        >
          {node.fields.chartDefinition}
        </Mermaid>
      </div>
    ),
    leadMagnet: ({ node }: any) => (
      <div className="my-12">
        <LeadMagnet
          title={node.fields.title}
          description={node.fields.description}
          buttonText={node.fields.buttonText}
          href={node.fields.href}
          variant={node.fields.variant}
        />
      </div>
    ),
    comparisonRow: ({ node }: any) => (
      <ComparisonRow
        description={node.fields.description}
        negativeLabel={node.fields.negativeLabel}
        negativeText={node.fields.negativeText}
        positiveLabel={node.fields.positiveLabel}
        positiveText={node.fields.positiveText}
        reverse={node.fields.reverse}
        showShare={true}
      />
    ),
    // --- Core text blocks ---
    mintelP: ({ node }: any) => (
      <p className="text-base md:text-lg text-slate-600 leading-relaxed mb-6">
        {renderInlineMarkdown(node.fields.text)}
      </p>
    ),
    mintelTldr: ({ node }: any) => (
      <mdxComponents.TLDR>{node.fields.content}</mdxComponents.TLDR>
    ),
    // --- MDX Registry Injections ---
    leadParagraph: ({ node }: any) => (
      <mdxComponents.LeadParagraph>
        {node.fields.text}
      </mdxComponents.LeadParagraph>
    ),
    articleBlockquote: ({ node }: any) => (
      <mdxComponents.ArticleBlockquote>
        {node.fields.quote}
        {node.fields.author && ` - ${node.fields.author}`}
      </mdxComponents.ArticleBlockquote>
    ),
    mintelH2: ({ node }: any) => (
      <mdxComponents.H2>{node.fields.text}</mdxComponents.H2>
    ),
    mintelH3: ({ node }: any) => (
      <mdxComponents.H3>{node.fields.text}</mdxComponents.H3>
    ),
    mintelHeading: ({ node }: any) => {
      const displayLevel = node.fields.displayLevel || "h2";
      if (displayLevel === "h3")
        return <mdxComponents.H3>{node.fields.text}</mdxComponents.H3>;
      return <mdxComponents.H2>{node.fields.text}</mdxComponents.H2>;
    },
    statsDisplay: ({ node }: any) => (
      <mdxComponents.StatsDisplay
        label={node.fields.label}
        value={node.fields.value}
        subtext={node.fields.subtext}
      />
    ),
    diagramState: ({ node }: any) => (
      <div className="my-8">
        <Mermaid id={`diagram-state-${node.fields.id || Date.now()}`}>
          {node.fields.definition}
        </Mermaid>
      </div>
    ),
    diagramTimeline: ({ node }: any) => (
      <div className="my-8">
        <Mermaid id={`diagram-timeline-${node.fields.id || Date.now()}`}>
          {node.fields.definition}
        </Mermaid>
      </div>
    ),
    diagramGantt: ({ node }: any) => (
      <div className="my-8">
        <Mermaid id={`diagram-gantt-${node.fields.id || Date.now()}`}>
          {node.fields.definition}
        </Mermaid>
      </div>
    ),
    diagramPie: ({ node }: any) => (
      <div className="my-8">
        <Mermaid id={`diagram-pie-${node.fields.id || Date.now()}`}>
          {node.fields.definition}
        </Mermaid>
      </div>
    ),
    diagramSequence: ({ node }: any) => (
      <div className="my-8">
        <Mermaid id={`diagram-seq-${node.fields.id || Date.now()}`}>
          {node.fields.definition}
        </Mermaid>
      </div>
    ),
    diagramFlow: ({ node }: any) => (
      <div className="my-8">
        <Mermaid id={`diagram-flow-${node.fields.id || Date.now()}`}>
          {node.fields.definition}
        </Mermaid>
      </div>
    ),

    waterfallChart: ({ node }: any) => (
      <mdxComponents.WaterfallChart
        title={node.fields.title}
        events={node.fields.metrics || []}
      />
    ),
    premiumComparisonChart: ({ node }: any) => (
      <mdxComponents.PremiumComparisonChart
        title={node.fields.title}
        items={node.fields.datasets || []}
      />
    ),
    iconList: ({ node }: any) => (
      <mdxComponents.IconList>
        {node.fields.items?.map((item: any, i: number) => {
          const isCheck = item.icon === "check" || !item.icon;
          const isCross = item.icon === "x" || item.icon === "cross";
          const isBullet = item.icon === "circle" || item.icon === "bullet";
          return (
            // @ts-ignore
            <mdxComponents.IconListItem
              key={i}
              check={isCheck}
              cross={isCross}
              bullet={isBullet}
            >
              {item.title || item.description}
            </mdxComponents.IconListItem>
          );
        })}
      </mdxComponents.IconList>
    ),
    statsGrid: ({ node }: any) => {
      const rawStats = node.fields.stats || [];
      let statsStr = "";
      if (Array.isArray(rawStats)) {
        statsStr = rawStats
          .map((s: any) => `${s.value || ""}|${s.label || ""}`)
          .join("~");
      } else if (typeof rawStats === "string") {
        statsStr = rawStats;
      }
      return <mdxComponents.StatsGrid stats={statsStr} />;
    },
    metricBar: ({ node }: any) => (
      <mdxComponents.MetricBar
        label={node.fields.label}
        value={node.fields.value}
        color={node.fields.color as any}
      />
    ),
    carousel: ({ node }: any) => (
      <mdxComponents.Carousel
        items={
          node.fields.slides?.map((s: any) => ({
            title: s.title || s.caption || "Slide",
            content: s.content || s.caption || "",
            icon: undefined,
          })) || []
        }
      />
    ),
    imageText: ({ node }: any) => (
      <mdxComponents.ImageText
        image={node.fields.image?.url || ""}
        title="ImageText Component"
      >
        {node.fields.text}
      </mdxComponents.ImageText>
    ),
    revenueLossCalculator: ({ node }: any) => (
      <mdxComponents.RevenueLossCalculator />
    ),
    performanceChart: ({ node }: any) => <mdxComponents.PerformanceChart />,
    performanceROICalculator: ({ node }: any) => (
      <div className="not-prose my-12">
        <mdxComponents.PerformanceROICalculator />
      </div>
    ),
    loadTimeSimulator: ({ node }: any) => (
      <div className="not-prose my-12">
        <mdxComponents.LoadTimeSimulator />
      </div>
    ),
    architectureBuilder: ({ node }: any) => (
      <div className="not-prose my-12">
        <mdxComponents.ArchitectureBuilder />
      </div>
    ),
    digitalAssetVisualizer: ({ node }: any) => (
      <div className="not-prose my-12">
        <mdxComponents.DigitalAssetVisualizer />
      </div>
    ),

    twitterEmbed: ({ node }: any) => (
      <mdxComponents.TwitterEmbed
        tweetId={node.fields.url?.split("/").pop() || ""}
      />
    ),
    youTubeEmbed: ({ node }: any) => (
      <mdxComponents.YouTubeEmbed
        videoId={node.fields.videoId}
        title={node.fields.title}
      />
    ),
    linkedInEmbed: ({ node }: any) => (
      <mdxComponents.LinkedInEmbed url={node.fields.url} />
    ),
    externalLink: ({ node }: any) => (
      <mdxComponents.ExternalLink href={node.fields.href}>
        {node.fields.label}
      </mdxComponents.ExternalLink>
    ),
    trackedLink: ({ node }: any) => (
      <mdxComponents.TrackedLink
        href={node.fields.href}
        eventName={node.fields.eventName}
      >
        {node.fields.label}
      </mdxComponents.TrackedLink>
    ),
    articleMeme: ({ node }: any) => (
      <mdxComponents.ArticleMeme
        template="drake"
        captions={node.fields.caption || "Top|Bottom"}
        image={node.fields.image?.url || undefined}
      />
    ),
    marker: ({ node }: any) => (
      <mdxComponents.Marker color={node.fields.color} delay={node.fields.delay}>
        {node.fields.text}
      </mdxComponents.Marker>
    ),
    boldNumber: ({ node }: any) => (
      <mdxComponents.BoldNumber
        value={node.fields.value}
        label={node.fields.label}
        source={node.fields.source}
        sourceUrl={node.fields.sourceUrl}
      />
    ),
    webVitalsScore: ({ node }: any) => (
      <mdxComponents.WebVitalsScore
        values={{
          lcp: node.fields.lcp,
          inp: node.fields.inp,
          cls: node.fields.cls,
        }}
        description={node.fields.description}
      />
    ),
    buttonBlock: ({ node }: any) => (
      <mdxComponents.Button
        href={node.fields.href}
        variant={node.fields.variant}
        size={node.fields.size}
        showArrow={node.fields.showArrow}
      >
        {node.fields.label}
      </mdxComponents.Button>
    ),
    articleQuote: ({ node }: any) => (
      <mdxComponents.ArticleQuote
        quote={node.fields.quote}
        author={node.fields.author}
        role={node.fields.role}
        source={node.fields.source}
        sourceUrl={node.fields.sourceUrl}
        translated={node.fields.translated}
        isCompany={node.fields.isCompany}
      />
    ),
    reveal: ({ node }: any) => (
      <mdxComponents.Reveal
        direction={node.fields.direction}
        delay={node.fields.delay}
      >
        {/* Reveal component takes children, which in MDX is nested content */}
        <PayloadRichText data={node.fields.content} />
      </mdxComponents.Reveal>
    ),
    section: ({ node }: any) => (
      <mdxComponents.Section title={node.fields.title}>
        <PayloadRichText data={node.fields.content} />
      </mdxComponents.Section>
    ),
    tableOfContents: () => <mdxComponents.TableOfContents />,
    faqSection: ({ node }: any) => (
      <mdxComponents.FAQSection>
        <PayloadRichText data={node.fields.content} />
      </mdxComponents.FAQSection>
    ),
  },
};

export function PayloadRichText({ data }: { data: any }) {
  if (!data) return null;

  return (
    <div className="article-content max-w-none">
      <RichText data={data} converters={jsxConverters} />
    </div>
  );
}