import React from 'react'
import { ArrowLeftIcon } from 'lucide-react'
import { Reveal } from '../Reveal'
import { ButtonLink } from '../Button'
import { useSite } from '../../api'
import { useLang } from '../../i18n/lang'
import { useFieldSaver } from '../../admin/AdminContext'
import { InlineEdit } from '../admin/InlineEdit'
import { SingletonPill } from '../../admin/Editable'

type StoryProps = {
  showLink?: boolean;
  showLabel?: boolean;
  showQuote?: boolean;
  alignTop?: boolean;
  children?: React.ReactNode;
  /** پس‌زمینه: black = char (تیره) و gray = ink (روشن‌تر) — ریتم تناوب بخش‌ها */
  tone?: 'black' | 'gray';
}

export function Story({ showLink = true, showLabel = true, showQuote = false, alignTop = false, tone = 'gray', children }: StoryProps) {
  const { story } = useSite()
  const { href } = useLang()
  const save = useFieldSaver()

  const saveStory = (field: string, value: unknown) =>
    save('story', story.id, { [field]: value }, (d) => {
      ;(d.story as unknown as Record<string, unknown>)[field] = value
    })

  const saveParagraph = (index: number, value: string) => {
    const paragraphs = [...story.paragraphs]
    paragraphs[index] = value
    void saveStory('paragraphs', paragraphs)
  }

  return (
    <section id="story" className={`${tone === 'black' ? 'bg-char' : 'bg-ink'} py-24 lg:py-32`} aria-labelledby="story-title">
      <div className={`mx-auto grid max-w-site gap-14 px-6 lg:grid-cols-2 lg:px-10 ${alignTop ? 'items-start' : 'items-center'}`}>
        <div>
          {showLabel && (
            <Reveal>
              <h2 id="story-title" className="text-section font-bold text-ivory">
                <InlineEdit value={story.title} onSave={(v) => saveStory('title', v)} />
              </h2>
              <div className="mt-6 h-px w-24 bg-copper/70" />
            </Reveal>
          )}

          <Reveal delay={0.08}>
            {story.paragraphs.map((paragraph, i) => (
              <p key={i} className={`text-base font-light leading-9 text-ivory/65 text-justify ${i === 0 ? 'mt-8' : 'mt-5'}`}>
                <InlineEdit multiline value={paragraph} onSave={(v) => saveParagraph(i, v)} />
              </p>
            ))}
          </Reveal>

          {/* آمارها فقط وقتی نمایش داده می‌شوند که مقداری ثبت شده باشد —
              با خالی‌بودن، کادر خالی با خط جداکننده بی‌معنا می‌ماند؛
              ویرایش/افزودن آمار از پنل ادمین (موجودیت story) انجام می‌شود */}
          {(story.stat1_value || story.stat2_value) && (
            <Reveal delay={0.16}>
              <div className="mt-10 grid grid-cols-2 gap-8 border-t border-ivory/10 pt-8">
                <div>
                  <p className="text-2xl font-bold text-copper">
                    <InlineEdit value={story.stat1_value} onSave={(v) => saveStory('stat1_value', v)} />
                  </p>
                  <p className="mt-2 text-sm font-light text-ivory/55">
                    <InlineEdit value={story.stat1_label} onSave={(v) => saveStory('stat1_label', v)} />
                  </p>
                </div>
                <div>
                  <p className="text-2xl font-bold text-copper">
                    <InlineEdit value={story.stat2_value} onSave={(v) => saveStory('stat2_value', v)} />
                  </p>
                  <p className="mt-2 text-sm font-light text-ivory/55">
                    <InlineEdit value={story.stat2_label} onSave={(v) => saveStory('stat2_label', v)} />
                  </p>
                </div>
              </div>
            </Reveal>
          )}

          {showQuote && story.quote && (
            <Reveal delay={0.2}>
              <div className="mt-12 border-r-2 border-copper bg-char/40 p-6">
                <p className="text-sm font-light leading-8 text-ivory/80">
                  <InlineEdit multiline value={story.quote} onSave={(v) => saveStory('quote', v)} />
                </p>
                <p className="mt-5 text-sm font-bold text-copper">
                  <InlineEdit value={story.quote_author} onSave={(v) => saveStory('quote_author', v)} />
                </p>
              </div>
            </Reveal>
          )}

          {showLink && (
            <Reveal delay={0.22}>
              <ButtonLink to={href(story.link_href)} variant="outline" className="mt-10 font-light">
                <InlineEdit value={story.link_label} onSave={(v) => saveStory('link_label', v)} />
                <ArrowLeftIcon className="h-4 w-4 ltr:-scale-x-100" />
              </ButtonLink>
            </Reveal>
          )}

          {children && (
            <Reveal delay={0.24}>
              {children}
            </Reveal>
          )}
        </div>

        <div className="relative grid grid-cols-2 gap-4">
          <SingletonPill resource="story" label="تصاویر و نقل‌قول بخش درباره ما" className="absolute -top-10 ltr:left-0 rtl:right-0" />
          {story.bento.map((item, i) => (
            <Reveal key={item.src + i} delay={0.06 * i}>
              <div className="overflow-hidden">
                <img
                  src={item.src}
                  alt={item.alt}
                  className="aspect-square w-full object-cover transition-transform duration-500 ease-lux hover:scale-105" loading="lazy" decoding="async"
                />
              </div>
            </Reveal>
          ))}
        </div>
      </div>
    </section>
  )
}