33 lines
1,002 B
JavaScript
33 lines
1,002 B
JavaScript
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// Merge two lists of statuses for the same timeline, e.g. one from IDB
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// and another from the network. In case of duplicates, prefer the fresh.
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export function mergeStatuses(leftStatuses, rightStatuses) {
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let leftIndex = 0
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let rightIndex = 0
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let merged = []
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while (leftIndex < leftStatuses.length || rightIndex < rightStatuses.length) {
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if (leftIndex === leftStatuses.length) {
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merged.push(rightStatuses[rightIndex])
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rightIndex++
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continue
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}
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if (rightIndex === rightStatuses.length) {
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merged.push(leftStatuses[leftIndex])
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leftIndex++
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continue
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}
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let left = leftStatuses[leftIndex]
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let right = rightStatuses[rightIndex]
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if (right.id === left.id) {
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merged.push(right.pinafore_stale ? left : right)
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rightIndex++
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leftIndex++
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} else if (parseInt(right.id, 10) > parseInt(left.id, 10)) {
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merged.push(right)
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rightIndex++
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} else {
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merged.push(left)
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leftIndex++
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}
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}
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return merged
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}
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