"use client"

import type { ElementType, HTMLAttributes, ReactNode } from "react"
import { cn } from "@/lib/utils"

type PublicSectionProps = {
  id?: string
  tone?: "default" | "muted" | "warm"
  className?: string
  containerClassName?: string
  children: ReactNode
}

type PublicPageHeaderProps = {
  eyebrow?: string
  title: string
  description?: string
  align?: "left" | "center"
  className?: string
  children?: ReactNode
}

type PublicProseProps = {
  className?: string
  children: ReactNode
}

export function PublicSection({
  id,
  tone = "default",
  className,
  containerClassName,
  children,
}: PublicSectionProps) {
  return (
    <section
      id={id}
      className={cn(
        "py-[var(--public-section-space)]",
        tone === "muted" && "bg-muted/30",
        tone === "warm" &&
          "bg-[linear-gradient(180deg,rgba(247,244,236,0.82),rgba(255,248,235,0.98))]",
        className
      )}
    >
      <div
        className={cn(
          "mx-auto w-full max-w-[var(--public-shell-max)] px-4 sm:px-5 lg:px-6",
          containerClassName
        )}
      >
        {children}
      </div>
    </section>
  )
}

export function PublicPageHeader({
  eyebrow,
  title,
  description,
  align = "left",
  className,
  children,
}: PublicPageHeaderProps) {
  const isCentered = align === "center"

  return (
    <header
      className={cn(
        "space-y-4 md:space-y-5",
        isCentered && "mx-auto max-w-3xl text-center",
        className
      )}
    >
      {eyebrow ? (
        <p className="text-[0.72rem] font-semibold uppercase tracking-[0.24em] text-primary/80">
          {eyebrow}
        </p>
      ) : null}
      <div className="space-y-3 md:space-y-4">
        <h1 className="text-3xl font-bold tracking-tight text-balance text-foreground sm:text-4xl md:text-5xl lg:text-[3.4rem]">
          {title}
        </h1>
        {description ? (
          <p
            className={cn(
              "text-base leading-7 text-muted-foreground md:text-lg md:leading-8",
              isCentered ? "mx-auto max-w-3xl" : "max-w-3xl"
            )}
          >
            {description}
          </p>
        ) : null}
      </div>
      {children}
    </header>
  )
}

export function PublicSurface({
  as: Component = "div",
  className,
  children,
  ...props
}: HTMLAttributes<HTMLDivElement> & { as?: ElementType }) {
  return (
    <Component
      className={cn(
        "rounded-[var(--public-surface-radius)] border border-border/65 bg-[linear-gradient(180deg,rgba(255,255,255,0.98),rgba(255,249,240,0.96))] p-5 shadow-[0_20px_52px_rgba(15,23,42,0.075)] md:p-7",
        className
      )}
      {...props}
    >
      {children}
    </Component>
  )
}

export function PublicInset({
  className,
  children,
  ...props
}: HTMLAttributes<HTMLDivElement>) {
  return (
    <div
      className={cn(
        "rounded-[var(--public-inset-radius)] border border-border/55 bg-[linear-gradient(180deg,rgba(255,255,255,0.94),rgba(255,250,244,0.92))] p-4 shadow-[0_12px_30px_rgba(15,23,42,0.055)]",
        className
      )}
      {...props}
    >
      {children}
    </div>
  )
}

type PublicSectionHeaderProps = {
  eyebrow: string
  title: string
  description: string
  className?: string
}

export function PublicSectionHeader({
  eyebrow,
  title,
  description,
  className,
}: PublicSectionHeaderProps) {
  return (
    <div className={cn("space-y-2.5", className)}>
      <p className="text-[0.72rem] font-semibold uppercase tracking-[0.22em] text-primary/80">
        {eyebrow}
      </p>
      <h2 className="text-xl font-semibold tracking-tight text-foreground md:text-[1.375rem]">
        {title}
      </h2>
      <p className="max-w-2xl text-sm leading-6 text-muted-foreground">
        {description}
      </p>
    </div>
  )
}

export function PublicProse({ className, children }: PublicProseProps) {
  return (
    <div
      className={cn(
        "prose prose-slate max-w-none prose-headings:font-semibold prose-headings:tracking-tight prose-headings:text-foreground prose-p:text-muted-foreground prose-p:leading-7 prose-li:text-muted-foreground prose-li:leading-7 prose-strong:text-foreground prose-a:text-foreground prose-a:decoration-primary/35 prose-a:underline-offset-4 hover:prose-a:decoration-primary prose-img:rounded-[1.5rem] prose-img:border prose-img:border-border/55 prose-img:shadow-[0_18px_45px_rgba(15,23,42,0.08)] prose-hr:border-border/50 prose-blockquote:border-primary/25 prose-blockquote:text-foreground md:prose-lg",
        className
      )}
    >
      {children}
    </div>
  )
}