gitea

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// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package util
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import "reflect"
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// PaginateSlice cut a slice as per pagination options
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// if page = 0 it do not paginate
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func PaginateSlice(list any, page, pageSize int) any {
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	if page <= 0 || pageSize <= 0 {
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		return list
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	}
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	if reflect.TypeOf(list).Kind() != reflect.Slice {
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		return list
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	}
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	listValue := reflect.ValueOf(list)
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	page--
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	if page*pageSize >= listValue.Len() {
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		return listValue.Slice(listValue.Len(), listValue.Len()).Interface()
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	}
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	listValue = listValue.Slice(page*pageSize, listValue.Len())
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	if listValue.Len() > pageSize {
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		return listValue.Slice(0, pageSize).Interface()
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	}
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	return listValue.Interface()
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}
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