/**
 * GeneratePage 步骤导航
 * 管理步骤切换与各步骤的前置校验
 */
import { message } from "antd"
import type { TitleSettings } from "../types"

export interface UseStepNavigationOptions {
  currentStep: number
  setCurrentStep: (step: number | ((prev: number) => number)) => void
  selectedTemplate: string
  materialMode: "manual" | "auto"
  selectedMaterials: string[]
  smartSelectedIds: string[]
  titleSettings: TitleSettings
}

export interface UseStepNavigationReturn {
  goNext: () => void
  goPrev: () => void
}

export const useStepNavigation = (options: UseStepNavigationOptions): UseStepNavigationReturn => {
  const {
    currentStep,
    setCurrentStep,
    selectedTemplate,
    materialMode,
    selectedMaterials,
    smartSelectedIds,
    titleSettings,
  } = options

  const goNext = () => {
    if (currentStep === 1 && !selectedTemplate) {
      message.warning("请先选择一个模板")
      return
    }
    if (currentStep === 2 && materialMode === "manual" && selectedMaterials.length === 0) {
      message.warning("请至少选择一个素材")
      return
    }
    if (currentStep === 2 && materialMode === "auto" && smartSelectedIds.length === 0) {
      message.warning("请先进行智能匹配并选择素材")
      return
    }
    if (currentStep === 4 && !titleSettings.title.trim()) {
      message.warning("请选择或输入标题")
      return
    }
    if (currentStep < 7) {
      setCurrentStep((s) => s + 1)
    }
  }

  const goPrev = () => {
    if (currentStep > 1) {
      setCurrentStep((s) => s - 1)
    }
  }

  return { goNext, goPrev }
}