Description:

time overlapping

time_overlapping #
TimeOverlapping package is a lightweight and blazing fast for checking the time overlapping in the given DateTime ranges.




Getting Started #
This package accepts only List<OverlapParams>
OverlapParams
This requires an uniqueId, DateTimeRange & dynamic data*.

dynamic data is type dynamic which accepts any sort of data.

It will throw AssertionError if it founds any duplicate Ids.
OverlapParams('uniqueId', DateTimeRange(start, end), {}),
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There are 3 type of functions to find overlapping.

findOverlap - returns the List<String> ie.., list of overlapping Ids.
findOverlapWithData - returns the List<OverlapParams> which has DateTimeRange overlap.
hasOverlap - to find timeOverlap for only 2 dateTimeRange. - returns bool.

Usage #
findOverlap #
void main() {
final range1 = DateTimeRange(
start: DateTime.now(),
end: DateTime.now().add(const Duration(hours: 2)),
);

final range2 = DateTimeRange(
start: DateTime.now(),
end: DateTime.now().add(const Duration(hours: 1)),
);

final range3 = DateTimeRange(
start: DateTime.now().add(const Duration(hours: 2)),
end: DateTime.now().add(const Duration(hours: 3)),
);

final range4 = DateTimeRange(
start: DateTime.now().add(const Duration(hours: 3)),
end: DateTime.now().add(const Duration(hours: 4)),
);

final overlapParams = [
OverlapParams('001', range1, {}),
OverlapParams('002', range2, {}),
OverlapParams('003', range3, {}),
OverlapParams('004', range4, {}),
];

print(TimeOverlapFinder.findOverlap(overlapParams));
}
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Output
['001', '002']
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findOverlapWithData #
void main() {
final range1 = DateTimeRange(
start: DateTime.now(),
end: DateTime.now().add(const Duration(hours: 2)),
);

final range2 = DateTimeRange(
start: DateTime.now(),
end: DateTime.now().add(const Duration(hours: 1)),
);

final range3 = DateTimeRange(
start: DateTime.now().add(const Duration(hours: 2)),
end: DateTime.now().add(const Duration(hours: 3)),
);

final range4 = DateTimeRange(
start: DateTime.now().add(const Duration(hours: 3)),
end: DateTime.now().add(const Duration(hours: 4)),
);

final overlapParams = [
OverlapParams('001', range1, {}),
OverlapParams('002', range2, {}),
OverlapParams('003', range3, {}),
OverlapParams('004', range4, {}),
];

print(TimeOverlapFinder.findOverlapWithData(overlapParams));
}
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Output
[
OverlapParams(001, 2021-08-12 07:36:07.095 - 2021-08-12 09:36:07.095, {}),
OverlapParams(002, 2021-08-12 07:36:07.095 - 2021-08-12 08:36:07.095, {})
]
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hasOverlap #
void main() {
final range1 = DateTimeRange(
start: DateTime.now(),
end: DateTime.now().add(const Duration(hours: 2)),
);

final range2 = DateTimeRange(
start: DateTime.now(),
end: DateTime.now().add(const Duration(hours: 1)),
);

final overlapParams = [
OverlapParams('001', range1, {}),
OverlapParams('002', range2, {}),
];

print(TimeOverlapFinder.hasOverlap(range1, range2));
}
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Output
true
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Some useful extensions
1. range1.isBefore(range2),
2. range1.isAfter(range2),
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1. range1.isCrossing(range2),
2. range1.isCrossingStart(range2),
3. range1.isCrossingEnd(range2),
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Thanks for using my package 🙏 #

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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