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import { useEditorStore } from "@/stores/editor-store";
import { useMediaStore, getMediaAspectRatio } from "@/stores/media-store";
import { useTimelineStore } from "@/stores/timeline-store";
export function useAspectRatio() {
const { canvasSize, canvasMode, canvasPresets } = useEditorStore();
const { mediaItems } = useMediaStore();
const { tracks } = useTimelineStore();
// Find the current preset based on canvas size
const currentPreset = canvasPresets.find(
(preset) =>
preset.width === canvasSize.width && preset.height === canvasSize.height,
);
// Get the original aspect ratio from the first video/image in timeline
const getOriginalAspectRatio = (): number => {
// Find first video or image in timeline
for (const track of tracks) {
for (const element of track.elements) {
if (element.type === "media") {
const mediaItem = mediaItems.find(
(item) => item.id === element.mediaId,
);
if (
mediaItem &&
(mediaItem.type === "video" || mediaItem.type === "image")
) {
return getMediaAspectRatio(mediaItem);
}
}
}
}
return 16 / 9; // Default aspect ratio
};
// Get current aspect ratio
const getCurrentAspectRatio = (): number => {
return canvasSize.width / canvasSize.height;
};
// Format aspect ratio as a readable string
const formatAspectRatio = (aspectRatio: number): string => {
// Check if it matches a common aspect ratio
const ratios = [
{ ratio: 16 / 9, label: "16:9" },
{ ratio: 9 / 16, label: "9:16" },
{ ratio: 1, label: "1:1" },
{ ratio: 4 / 3, label: "4:3" },
{ ratio: 3 / 4, label: "3:4" },
{ ratio: 21 / 9, label: "21:9" },
];
for (const { ratio, label } of ratios) {
if (Math.abs(aspectRatio - ratio) < 0.01) {
return label;
}
}
// If not a common ratio, format as decimal
return aspectRatio.toFixed(2);
};
// Check if current mode is "Original"
const isOriginal = canvasMode === "original";
// Get display name for current aspect ratio
const getDisplayName = (): string => {
// If explicitly set to original mode, always show "Original"
if (canvasMode === "original") {
return "Original";
}
if (currentPreset) {
return currentPreset.name;
}
return formatAspectRatio(getCurrentAspectRatio());
};
return {
currentPreset,
canvasMode,
isOriginal,
getCurrentAspectRatio,
getOriginalAspectRatio,
formatAspectRatio,
getDisplayName,
canvasSize,
canvasPresets,
};
}
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