/**
 * GeneratePage 步骤内容渲染（#1970 流程重构）
 * 步骤顺序：选择模式(1) → 选择素材(2) → 选择标题(3) → 确认生成(4) → 选择封面(5)
 * 原步骤"选择配音"已从主流程移除，改为 Step1 下一步分支弹窗（VoiceSelectModal / ScriptSelectModal → TtsVoiceModal）。
 */
import React from "react"
import type { EditPlanClip } from "@/api/template-editor"
import type { CoverConfig } from "../types/cover"
import type { TitleSettings } from "../types"
import type { ScriptItem } from "@/api/scripts"
import Step1EditMode from "./Step1EditMode"
import type { EditMode } from "./Step1EditMode"
import Step2MaterialSelect from "../components/Step2MaterialSelect"
import Step4TitleSettings from "../components/Step4TitleSettings"
import Step6CoverSettings from "../components/Step6CoverSettings"
import BatchGenerationGrid from "./BatchGenerationGrid"
import type { BatchTaskState } from "../hooks/generate-video/useGenerationPolling"
import type { GeneratedVideo } from "@/api/template-editor"

export interface GenerateStepContentProps {
  currentStep: number
  /* Step1：剪辑模式 + 生成设置 */
  editMode: EditMode
  onEditModeChange: (m: EditMode) => void
  dedupEnabled: boolean
  onDedupEnabledChange: (v: boolean) => void
  /* ── 片段数量（#1899） ── */
  clipCount: number
  onClipCountChange: (n: number) => void
  /* ── 生成数量/比例（Step1 设置） ── */
  previewCount: number
  onPreviewCountChange: (n: number) => void
  videoRatio: "9:16" | "16:9"
  onVideoRatioChange: (r: "9:16" | "16:9") => void
  /* ── 素材 ── */
  materialMode: "manual" | "auto"
  onMaterialModeChange: (mode: "manual" | "auto") => void
  selectedMaterials: string[]
  onSelectedMaterialsChange: (ids: string[]) => void
  smartSelectedIds: string[]
  onSmartSelectedIdsChange: (ids: string[]) => void
  selectedTemplate?: string
  /* ── 标题 ── */
  titleSettings: TitleSettings
  onTitleSettingsChange: (settings: TitleSettings) => void
  onUpdatePosition: (position: string) => void
  onUpdateFont: (font: string) => void
  onUpdateSize: (size: number) => void
  onToggleBold: () => void
  onToggleItalic: () => void
  onToggleStroke: () => void
  onToggleShadow: () => void
  onApplyPreset: (presetKey: string) => void
  activePreset: string | null
  titlePresets: { key: string; label: string; previewStyle: React.CSSProperties }[]
  /* ── 封面 ── */
  coverSettings: CoverConfig
  onCoverSettingsChange: (settings: CoverConfig) => void
  /* ── 配音 ── */
  selectedVoice: string
  onSelectedVoiceChange: (id: string) => void
  onServerClipsChange: (clips: EditPlanClip[]) => void
  /* ── 生成 ── */
  generating: boolean
  generated: boolean
  generateError: string | null
  progress: number
  generatedVideos: GeneratedVideo[]
  onRetry: () => void
  onRetryBatchTask: (taskId: string) => void
  onDismissError: () => void
  batchTasks: BatchTaskState[]
  bgm: boolean
  bgmConfig?: { enabled: boolean; music_id?: string }
  /* ── 批量生成 ── */
  previewTitles: string[]
  onPreviewTitlesChange: (titles: string[]) => void
  voiceModePerVideo: boolean
  onVoiceModePerVideoChange: (v: boolean) => void
  voiceLibraryIds: string[]
  onVoiceLibraryIdsChange: (ids: string[]) => void
  previewCovers: string[]
  onPreviewCoversChange: (urls: string[]) => void
  selectedVariantIds?: number[]
  /* ── 摘要信息（#1970 Step4 展示用） ── */
  selectedScript: ScriptItem | null
  ttsVoiceId: string
  ttsVoiceSource: "preset" | "clone"
}

export const GenerateStepContent: React.FC<GenerateStepContentProps> = (props) => {
  // Only destructure props actually referenced in JSX below
  const {
    currentStep,
    editMode,
    onEditModeChange,
    dedupEnabled,
    onDedupEnabledChange,
    clipCount,
    onClipCountChange,
    previewCount,
    onPreviewCountChange,
    videoRatio,
    onVideoRatioChange,
    materialMode,
    onMaterialModeChange,
    selectedMaterials,
    onSelectedMaterialsChange,
    smartSelectedIds,
    onSmartSelectedIdsChange,
    selectedTemplate,
    titleSettings,
    onTitleSettingsChange,
    onUpdatePosition,
    onUpdateFont,
    onUpdateSize,
    onToggleBold,
    onToggleItalic,
    onToggleStroke,
    onToggleShadow,
    onApplyPreset,
    activePreset,
    titlePresets,
    coverSettings,
    onCoverSettingsChange,
    onServerClipsChange,
    generating,
    generateError,
    progress,
    onRetry,
    generatedVideos,
    batchTasks,
    onRetryBatchTask,
    previewTitles,
    onPreviewTitlesChange,
    previewCovers,
    onPreviewCoversChange,
    selectedVariantIds,
    selectedScript,
    ttsVoiceId,
    ttsVoiceSource,
  } = props

  const handleClipsChange = React.useCallback(
    (clips: EditPlanClip[], _templateId?: string) => {
      onServerClipsChange(clips)
    },
    [onServerClipsChange],
  )

  switch (currentStep) {
    case 1:
      return (
        <Step1EditMode
          editMode={editMode}
          onEditModeChange={onEditModeChange}
          previewCount={previewCount}
          onPreviewCountChange={onPreviewCountChange}
          videoRatio={videoRatio}
          onVideoRatioChange={onVideoRatioChange}
          dedupEnabled={dedupEnabled}
          onDedupEnabledChange={onDedupEnabledChange}
        />
      )
    case 2:
      return (
        <Step2MaterialSelect
          editMode={editMode}
          materialMode={materialMode}
          onMaterialModeChange={onMaterialModeChange}
          selectedMaterials={selectedMaterials}
          onSelectedMaterialsChange={onSelectedMaterialsChange}
          smartSelectedIds={smartSelectedIds}
          onSmartSelectedIdsChange={onSmartSelectedIdsChange}
          clipCount={clipCount}
          onClipCountChange={onClipCountChange}
          selectedTemplate={selectedTemplate}
          onServerClipsChange={handleClipsChange}
        />
      )
    case 3:
      return (
        <Step4TitleSettings
          titleSettings={titleSettings}
          onTitleSettingsChange={onTitleSettingsChange}
          onUpdatePosition={onUpdatePosition}
          onUpdateFont={onUpdateFont}
          onUpdateSize={onUpdateSize}
          onToggleBold={onToggleBold}
          onToggleItalic={onToggleItalic}
          onToggleStroke={onToggleStroke}
          onToggleShadow={onToggleShadow}
          onApplyPreset={onApplyPreset}
          activePreset={activePreset}
          titlePresets={titlePresets}
          previewCount={previewCount}
          previewTitles={previewTitles}
          onPreviewTitlesChange={onPreviewTitlesChange}
        />
      )
    case 4:
      return (
        <div className="xx-form-section">
          {/* 配置摘要（#1970） */}
          <div
            style={{
              padding: 14,
              background: "#f9fafb",
              borderRadius: 8,
              marginBottom: 16,
              fontSize: 13,
              lineHeight: 1.8,
              color: "#374151",
            }}
          >
            <div style={{ fontWeight: 600, fontSize: 14, marginBottom: 6, color: "#111" }}>
              📋 生成配置
            </div>
            <div>🎬 剪辑模式：{editMode === "random" ? "🎲 随机混剪" : "📖 叙事剪辑"}</div>
            {editMode === "random" ? (
              <div>🎙️ 配音来源：配音库音频</div>
            ) : (
              <>
                <div>📝 文案：{selectedScript?.title ?? "未选择"}</div>
                <div>
                  🎙️ 合成配音音色：
                  {ttsVoiceId
                    ? `${ttsVoiceSource === "clone" ? "克隆音色" : "系统音色"}（${ttsVoiceId.slice(0, 8)}...）`
                    : "未选择"}
                </div>
              </>
            )}
            <div>📱 视频比例：{videoRatio}</div>
            <div>🎯 智能降重：{dedupEnabled ? "已开启" : "已关闭"}</div>
            {previewCount > 1 && <div>📦 生成数量：{previewCount} 个</div>}
          </div>

          {previewCount > 1 ? (
            <BatchGenerationGrid
              tasks={batchTasks}
              titles={previewTitles}
              onRetryTask={onRetryBatchTask}
            />
          ) : generating ? (
            <div className="xx-gen-progress-card">
              <div className="xx-gen-progress-header">
                <div className="xx-gen-progress-info">
                  <div className="xx-gen-progress-phase">
                    ⏳ 视频渲染中… {Math.round(progress)}%
                  </div>
                  <div className="xx-gen-progress-sub">
                    生成过程中可以切换到其他页面，完成后可在任务历史查看
                  </div>
                </div>
              </div>
              <div className="xx-gen-progress-bar">
                <div
                  className="xx-gen-progress-bar-fill"
                  style={{ width: `${Math.min(Math.round(progress), 100)}%` }}
                />
              </div>
            </div>
          ) : generateError ? (
            <div className="xx-gen-error-card">
              <div className="xx-gen-error-info">
                <div className="xx-gen-error-title">生成失败</div>
                <div className="xx-gen-error-msg">{generateError}</div>
              </div>
              <button type="button" className="xx-btn xx-btn-primary xx-btn-sm" onClick={onRetry}>
                🔄 重试
              </button>
            </div>
          ) : null}
        </div>
      )
    case 5:
      return (
        <Step6CoverSettings
          coverSettings={coverSettings}
          onCoverSettingsChange={onCoverSettingsChange}
          titleSettings={titleSettings}
          generatedVideos={generatedVideos}
          previewCount={previewCount}
          previewTitles={previewTitles}
          previewCovers={previewCovers}
          onPreviewCoversChange={onPreviewCoversChange}
          selectedVariantIndexes={selectedVariantIds}
        />
      )
    default:
      return null
  }
}

export default GenerateStepContent