Julia Friesel
33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
export default function (cycleDays, tempEvalEndIndex) {
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const mucusDays = cycleDays.filter(day => day.mucus && !day.mucus.exclude)
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const bestQuality = Math.max(...mucusDays.map(day => day.mucus.value))
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const mucusPeak = cycleDays.find((day, i) => {
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if (!mucusDays.includes(day) || day.mucus.value !== bestQuality) return false
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// sensiplan says the three following days must be of lower quality
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// AND no best quality day may occur until temperature evaluation has
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// been completed
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const mucusDaysIndex = mucusDays.indexOf(day)
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const threeFollowingDays = mucusDays.slice(mucusDaysIndex + 1, mucusDaysIndex + 4)
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if (threeFollowingDays.length < 3) return false
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const bestQualityOccurringIn3FollowingDays = threeFollowingDays.some(day => day.mucus.value >= bestQuality)
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if (bestQualityOccurringIn3FollowingDays) return false
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const relevantDays = cycleDays
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.slice(i + 1, tempEvalEndIndex + 1)
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.filter(day => day.mucus && !day.mucus.exclude)
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return relevantDays.every(day => day.mucus.value < bestQuality)
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})
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if (!mucusPeak) return { detected: false }
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return {
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detected: true,
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mucusPeak
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}
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}
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