| 1 | "use client"; |
| 2 | |
| 3 | import type React from "react"; |
| 4 | import { createContext, useCallback, useContext, useState } from "react"; |
| 5 | |
| 6 | import { type LayoutType } from "@/components/notebook/presentation/utils/parser"; |
| 7 | import { serializeSlidesToXml } from "@/components/notebook/presentation/utils/slide-serializer"; |
| 8 | import { usePresentationState } from "@/states/presentation-state"; |
| 9 | import { |
| 10 | layoutMap, |
| 11 | type ContentAlignment, |
| 12 | type SlideUpdatePayload, |
| 13 | } from "./types"; |
| 14 | |
| 15 | const getPresentationState = usePresentationState.getState; |
| 16 | |
| 17 | interface SlideEditorContextValue { |
| 18 | // State |
| 19 | slideId: string; |
| 20 | isMenuOpen: boolean; |
| 21 | setIsMenuOpen: (open: boolean) => void; |
| 22 | showDeleteConfirm: boolean; |
| 23 | setShowDeleteConfirm: (show: boolean) => void; |
| 24 | aiInput: string; |
| 25 | setAiInput: (input: string) => void; |
| 26 | selectedLayout: number; |
| 27 | setSelectedLayout: (layout: number) => void; |
| 28 | |
| 29 | // Callbacks |
| 30 | onDuplicate?: () => void; |
| 31 | onDelete?: () => void; |
| 32 | dragListeners?: React.HTMLAttributes<HTMLElement>; |
| 33 | |
| 34 | // Derived state |
| 35 | currentSlide: |
| 36 | | ReturnType<typeof getPresentationState>["slides"][0] |
| 37 | | undefined; |
| 38 | currentTheme: string; |
| 39 | currentThemeData: ReturnType<typeof getPresentationState>["customThemeData"]; |
| 40 | currentLayout: LayoutType; |
| 41 | currentWidth: "S" | "M" | "L"; |
| 42 | currentAlignment: ContentAlignment; |
| 43 | hasRootImage: boolean; |
| 44 | |
| 45 | // Actions |
| 46 | updateSlide: (updates: SlideUpdatePayload) => void; |
| 47 | handleImageEdit: () => void; |
| 48 | handleLayoutChange: (idx: number) => void; |
| 49 | handleMagicPrompt: (prompt: string) => void; |
| 50 | handleAiSubmit: () => void; |
| 51 | handleAiKeyDown: (e: React.KeyboardEvent<HTMLInputElement>) => void; |
| 52 | } |
| 53 | |
| 54 | const SlideEditorContext = createContext<SlideEditorContextValue | null>(null); |
| 55 | |
| 56 | export function useSlideEditorContext() { |
| 57 | const context = useContext(SlideEditorContext); |
| 58 | if (!context) { |
| 59 | throw new Error( |
| 60 | "useSlideEditorContext must be used within SlideEditorProvider", |
| 61 | ); |
| 62 | } |
| 63 | return context; |
| 64 | } |
| 65 | |
| 66 | interface SlideEditorProviderProps { |
| 67 | slideId: string; |
| 68 | dragListeners?: React.HTMLAttributes<HTMLElement>; |
| 69 | onDuplicate?: () => void; |
| 70 | onDelete?: () => void; |
| 71 | children: React.ReactNode; |
| 72 | } |
| 73 | |
| 74 | export function SlideEditorProvider({ |
| 75 | slideId, |
| 76 | dragListeners, |
| 77 | onDuplicate, |
| 78 | onDelete, |
| 79 | children, |
| 80 | }: SlideEditorProviderProps) { |
| 81 | const openImageEditor = usePresentationState((s) => s.openImageEditor); |
| 82 | const setCurrentSlideId = usePresentationState((s) => s.setCurrentSlideId); |
| 83 | const setPendingAgentMessage = usePresentationState( |
| 84 | (s) => s.setPendingAgentMessage, |
| 85 | ); |
| 86 | const setActiveRightPanel = usePresentationState( |
| 87 | (s) => s.setActiveRightPanel, |
| 88 | ); |
| 89 | |
| 90 | // Local state |
| 91 | const [isMenuOpen, setIsMenuOpen] = useState(false); |
| 92 | const [showDeleteConfirm, setShowDeleteConfirm] = useState(false); |
| 93 | const [aiInput, setAiInput] = useState(""); |
| 94 | |
| 95 | // Helper to get current slide data on-demand |
| 96 | const getCurrentSlideData = useCallback(() => { |
| 97 | const { slides } = usePresentationState.getState(); |
| 98 | const currentSlide = slides.find((s) => s.id === slideId); |
| 99 | return { |
| 100 | currentSlide, |
| 101 | currentLayout: currentSlide?.layoutType ?? "none", |
| 102 | currentWidth: currentSlide?.width ?? "M", |
| 103 | currentAlignment: currentSlide?.alignment ?? "start", |
| 104 | hasRootImage: !!currentSlide?.rootImage?.url, |
| 105 | }; |
| 106 | }, [slideId]); |
| 107 | |
| 108 | // Derived state from Zustand (non-reactive for theme) |
| 109 | const currentTheme = usePresentationState.getState().theme; |
| 110 | const currentThemeData = usePresentationState.getState().customThemeData; |
| 111 | |
| 112 | // Get initial slide data for selected layout initialization |
| 113 | const initialSlideData = getCurrentSlideData(); |
| 114 | |
| 115 | // Selected layout state |
| 116 | const [selectedLayout, setSelectedLayout] = useState( |
| 117 | initialSlideData.currentLayout === "vertical" |
| 118 | ? 0 |
| 119 | : initialSlideData.currentLayout === "left" |
| 120 | ? 2 |
| 121 | : initialSlideData.currentLayout === "right" |
| 122 | ? 3 |
| 123 | : initialSlideData.currentLayout === "background" |
| 124 | ? 4 |
| 125 | : 1, |
| 126 | ); |
| 127 | |
| 128 | // Actions |
| 129 | const updateSlide = useCallback( |
| 130 | (updates: SlideUpdatePayload) => { |
| 131 | const { slides, setSlides } = usePresentationState.getState(); |
| 132 | const updatedSlides = slides.map((slide) => { |
| 133 | if (slide.id === slideId) { |
| 134 | return { |
| 135 | ...slide, |
| 136 | ...updates, |
| 137 | }; |
| 138 | } |
| 139 | return slide; |
| 140 | }); |
| 141 | setSlides(updatedSlides); |
| 142 | }, |
| 143 | [slideId], |
| 144 | ); |
| 145 | |
| 146 | const handleImageEdit = useCallback(() => { |
| 147 | setCurrentSlideId(slideId); |
| 148 | openImageEditor("generate"); |
| 149 | }, [openImageEditor, setCurrentSlideId, slideId]); |
| 150 | |
| 151 | const handleLayoutChange = useCallback( |
| 152 | (idx: number) => { |
| 153 | setSelectedLayout(idx); |
| 154 | updateSlide({ layoutType: layoutMap[idx] }); |
| 155 | }, |
| 156 | [updateSlide], |
| 157 | ); |
| 158 | |
| 159 | const handleMagicPrompt = useCallback( |
| 160 | (prompt: string) => { |
| 161 | const trimmedPrompt = prompt.trim(); |
| 162 | if (!trimmedPrompt) return; |
| 163 | |
| 164 | const { slides } = usePresentationState.getState(); |
| 165 | const slideToEdit = slides.find((s) => s.id === slideId); |
| 166 | if (!slideToEdit) return; |
| 167 | |
| 168 | const slideXml = serializeSlidesToXml([slideToEdit], false); |
| 169 | setCurrentSlideId(slideId); |
| 170 | setPendingAgentMessage({ |
| 171 | message: trimmedPrompt, |
| 172 | slideContext: slideXml, |
| 173 | }); |
| 174 | setActiveRightPanel("agent"); |
| 175 | }, |
| 176 | [setActiveRightPanel, setCurrentSlideId, setPendingAgentMessage, slideId], |
| 177 | ); |
| 178 | |
| 179 | const handleAiSubmit = useCallback(() => { |
| 180 | const trimmedInput = aiInput.trim(); |
| 181 | if (!trimmedInput) return; |
| 182 | |
| 183 | handleMagicPrompt(trimmedInput); |
| 184 | setAiInput(""); |
| 185 | }, [aiInput, handleMagicPrompt]); |
| 186 | |
| 187 | const handleAiKeyDown = useCallback( |
| 188 | (e: React.KeyboardEvent<HTMLInputElement>) => { |
| 189 | if (e.key === "Enter" && !e.shiftKey) { |
| 190 | e.preventDefault(); |
| 191 | handleAiSubmit(); |
| 192 | } |
| 193 | }, |
| 194 | [handleAiSubmit], |
| 195 | ); |
| 196 | |
| 197 | const value: SlideEditorContextValue = { |
| 198 | slideId, |
| 199 | isMenuOpen, |
| 200 | setIsMenuOpen, |
| 201 | showDeleteConfirm, |
| 202 | setShowDeleteConfirm, |
| 203 | aiInput, |
| 204 | setAiInput, |
| 205 | selectedLayout, |
| 206 | setSelectedLayout, |
| 207 | onDuplicate, |
| 208 | onDelete, |
| 209 | dragListeners, |
| 210 | currentSlide: initialSlideData.currentSlide, |
| 211 | currentTheme, |
| 212 | currentThemeData, |
| 213 | currentLayout: initialSlideData.currentLayout, |
| 214 | currentWidth: initialSlideData.currentWidth, |
| 215 | currentAlignment: initialSlideData.currentAlignment, |
| 216 | hasRootImage: initialSlideData.hasRootImage, |
| 217 | updateSlide, |
| 218 | handleImageEdit, |
| 219 | handleLayoutChange, |
| 220 | handleMagicPrompt, |
| 221 | handleAiSubmit, |
| 222 | handleAiKeyDown, |
| 223 | }; |
| 224 | |
| 225 | return ( |
| 226 | <SlideEditorContext.Provider value={value}> |
| 227 | {children} |
| 228 | </SlideEditorContext.Provider> |
| 229 | ); |
| 230 | } |
| 231 |