import { createMotionComponent, motionTokens } from '@fluentui/react-motion';
/**
 * Motion component for the indeterminate ProgressBar bar:
 * a horizontal sliding animation that loops indefinitely.
 * In reduced motion mode, the bar pulses opacity instead of sliding.
 */ export const ProgressBarIndeterminateMotion = createMotionComponent({
    // translate percentages are relative to the element's own width, not the container's.
    // The indeterminate bar is ~33% the width of its container, so:
    //   translate: '-100%' === left: '-33%' (one bar-width off-screen to the left)
    //   translate: '300%'  === left: '100%' (3 × bar-width ≈ full container width, off-screen to the right)
    keyframes: [
        {
            translate: '-100%'
        },
        {
            translate: '300%'
        }
    ],
    duration: 3000,
    iterations: Infinity,
    easing: motionTokens.curveLinear,
    reducedMotion: {
        keyframes: [
            {
                opacity: 0.2
            },
            {
                opacity: 1
            },
            {
                opacity: 0.2
            }
        ],
        duration: 3000,
        iterations: Infinity
    }
});