import {
  ArrowLeft,
  CheckCircle2,
  Loader2,
  Play,
  RefreshCw,
  Save,
  Tag,
} from 'lucide-react';
import { useMemo } from 'react';

import type { BabyObjectMatchDraft } from '../../../packages/shared/src/contracts/edutainmentBabyObject';
import {
  BABY_OBJECT_MATCH_EDUTAINMENT_TAG,
  hasBabyObjectMatchRequiredTag,
  normalizeBabyObjectMatchTags,
} from '../../../packages/shared/src/contracts/edutainmentBabyObject';
import { PlatformActionButton } from '../common/PlatformActionButton';
import { PlatformMediaFrame } from '../common/PlatformMediaFrame';
import { PlatformOverlayBadge } from '../common/PlatformOverlayBadge';
import { PlatformPillBadge } from '../common/PlatformPillBadge';
import { PlatformStatusMessage } from '../common/PlatformStatusMessage';
import { PlatformSubpanel } from '../common/PlatformSubpanel';

type BabyObjectMatchResultViewProps = {
  draft: BabyObjectMatchDraft;
  isBusy?: boolean;
  error?: string | null;
  onBack: () => void;
  onSaveDraft?: (draft: BabyObjectMatchDraft) => void;
  onPublish?: (draft: BabyObjectMatchDraft) => void;
  onStartTestRun?: (draft: BabyObjectMatchDraft) => void;
  onRegenerateAssets?: (draft: BabyObjectMatchDraft) => void;
};

function normalizeDraftForAction(draft: BabyObjectMatchDraft) {
  return {
    ...draft,
    themeTags: normalizeBabyObjectMatchTags(draft.themeTags),
    updatedAt: new Date().toISOString(),
  };
}

const REQUIRED_VISUAL_ASSET_KINDS = [
  'background',
  'gift-box',
  'basket',
] as const;

export function BabyObjectMatchResultView({
  draft,
  isBusy = false,
  error = null,
  onBack,
  onSaveDraft,
  onPublish,
  onStartTestRun,
  onRegenerateAssets,
}: BabyObjectMatchResultViewProps) {
  const normalizedDraft = useMemo(
    () => normalizeDraftForAction(draft),
    [draft],
  );
  const hasGeneratedAssets =
    normalizedDraft.itemAssets.every(
      (asset) =>
        asset.generationProvider === 'vector-engine-gpt-image-2' &&
        asset.imageSrc.startsWith('data:image/png;base64,'),
    ) &&
    Boolean(normalizedDraft.visualPackage) &&
    REQUIRED_VISUAL_ASSET_KINDS.every((kind) =>
      normalizedDraft.visualPackage!.assets.some(
        (asset) =>
          asset.assetKind === kind &&
          asset.generationProvider === 'vector-engine-gpt-image-2' &&
          asset.imageSrc.startsWith('data:image/png;base64,'),
      ),
    );
  const publishReady =
    normalizedDraft.itemNames.every((itemName) => itemName.trim()) &&
    normalizedDraft.itemAssets.every((asset) => asset.imageSrc.trim()) &&
    hasBabyObjectMatchRequiredTag(normalizedDraft.themeTags) &&
    hasGeneratedAssets;
  const isPublished = normalizedDraft.publicationStatus === 'published';

  return (
    <div className="platform-page-stage platform-remap-surface flex h-full min-h-0 flex-col overflow-hidden px-3 pb-3 pt-3 sm:px-4 sm:pt-4 xl:px-5 xl:pb-4 xl:pt-4">
      <div className="mx-auto flex h-full min-h-0 w-full max-w-5xl flex-col">
        <div className="mb-3 flex shrink-0 items-center justify-between gap-3">
          <PlatformActionButton
            onClick={onBack}
            disabled={isBusy}
            tone="ghost"
            size="xs"
            className="min-h-0 gap-2 px-3 py-1.5 text-[11px]"
          >
            <ArrowLeft className="h-3.5 w-3.5" />
            返回
          </PlatformActionButton>
          <div className="flex min-w-0 items-center gap-2">
            <PlatformPillBadge
              tone={isPublished ? 'success' : 'neutral'}
              size="xs"
            >
              {isPublished ? '已发布' : '草稿'}
            </PlatformPillBadge>
          </div>
        </div>

        <div className="min-h-0 flex-1 overflow-y-auto pr-0.5">
          <section className="grid gap-3 lg:grid-cols-[minmax(0,0.92fr)_minmax(0,1.08fr)]">
            <PlatformSubpanel
              as="div"
              surface="flat"
              radius="sm"
              title="模板"
              titleVariant="strong"
              className="bg-white/68 shadow-[inset_0_1px_0_rgba(255,255,255,0.74)]"
            >
              <h1 className="mt-2 m-0 text-3xl font-black leading-tight tracking-normal text-[var(--platform-text-strong)] sm:text-5xl">
                {normalizedDraft.workTitle}
              </h1>
              <div className="mt-4 flex flex-wrap gap-2">
                {normalizedDraft.themeTags.map((tag) => (
                  <PlatformPillBadge
                    key={tag}
                    tone={
                      tag === BABY_OBJECT_MATCH_EDUTAINMENT_TAG
                        ? 'success'
                        : 'neutral'
                    }
                    icon={<Tag className="h-3 w-3" />}
                  >
                    {tag}
                  </PlatformPillBadge>
                ))}
              </div>
            </PlatformSubpanel>

            <div className="grid gap-3 sm:grid-cols-2">
              {normalizedDraft.itemAssets.map((asset) => (
                <PlatformSubpanel
                  as="article"
                  key={asset.itemId}
                  surface="flat"
                  radius="sm"
                  padding="none"
                  className="overflow-hidden shadow-[inset_0_1px_0_rgba(255,255,255,0.76)]"
                >
                  <PlatformMediaFrame
                    src={asset.imageSrc}
                    alt={asset.itemName}
                    fallbackLabel={asset.itemName}
                    aspect="square"
                    surface="none"
                    loading="lazy"
                    imageClassName="absolute inset-0 h-full w-full object-cover"
                    className="rounded-none bg-[linear-gradient(145deg,rgba(236,253,245,0.92),rgba(255,247,237,0.86))]"
                    fallbackClassName="tracking-normal text-[var(--platform-text-soft)]"
                    previewOverlay={
                      asset.generationProvider === 'placeholder' ? (
                        <PlatformOverlayBadge
                          placement="topRight"
                          offset="tight"
                          tone="muted"
                          size="compact"
                        >
                          占位图
                        </PlatformOverlayBadge>
                      ) : null
                    }
                  />
                  <div className="p-3">
                    <div className="truncate text-lg font-black text-[var(--platform-text-strong)]">
                      {asset.itemName}
                    </div>
                  </div>
                </PlatformSubpanel>
              ))}
            </div>
          </section>

          {error ? (
            <PlatformStatusMessage
              tone="error"
              surface="platform"
              size="md"
              className="mt-3"
            >
              {error}
            </PlatformStatusMessage>
          ) : null}

          {!hasGeneratedAssets ? (
            <PlatformStatusMessage
              tone="neutral"
              surface="platform"
              size="md"
              className="mt-3 rounded-2xl"
            >
              当前作品仍是占位资源，请重新生成素材后再试玩或发布。
            </PlatformStatusMessage>
          ) : null}
        </div>

        <div className="mt-3 grid shrink-0 gap-2 pb-[max(0.25rem,env(safe-area-inset-bottom))] sm:grid-cols-4">
          <PlatformActionButton
            disabled={isBusy || !onSaveDraft}
            onClick={() => onSaveDraft?.(normalizedDraft)}
            tone="secondary"
          >
            <Save className="h-4 w-4" />
            保存草稿
          </PlatformActionButton>
          <PlatformActionButton
            disabled={isBusy || !onRegenerateAssets}
            onClick={() => onRegenerateAssets?.(normalizedDraft)}
            tone="secondary"
          >
            {isBusy ? (
              <Loader2 className="h-4 w-4 animate-spin" />
            ) : (
              <RefreshCw className="h-4 w-4" />
            )}
            重新生成资源
          </PlatformActionButton>
          <PlatformActionButton
            disabled={isBusy || !hasGeneratedAssets || !onStartTestRun}
            onClick={() => onStartTestRun?.(normalizedDraft)}
            tone="secondary"
          >
            <Play className="h-4 w-4" />
            试玩
          </PlatformActionButton>
          <PlatformActionButton
            disabled={isBusy || !publishReady || !onPublish}
            onClick={() => onPublish?.(normalizedDraft)}
          >
            {isBusy ? (
              <Loader2 className="h-4 w-4 animate-spin" />
            ) : (
              <CheckCircle2 className="h-4 w-4" />
            )}
            发布
          </PlatformActionButton>
        </div>
      </div>
    </div>
  );
}

export default BabyObjectMatchResultView;