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package reading.component.index
import rx._
import Ctx.Owner.Unsafe._
import scalatags.JsDom.all._
import scalacss.Defaults._
import scalacss.ScalatagsCss._
import reading.component.index.style.{FiltersMenu => FiltersMenuStyle}
import reading.models._
import reading.utils.{RxTag, RxAttr}
object FiltersMenu {
def apply(books: Rx[Seq[Book]], filters: Var[Seq[Filter]]): Frag =
RxTag { implicit context =>
div(
FiltersMenuStyle.render,
FiltersMenuStyle.groups,
filters().find(_.kind == GradeKind) match {
case None =>
group(books, filters, "Classe", Grade.values.map(Filter.apply(_)))
case Some(grade) =>
group(books, filters, "Programme", Program.values.map(Filter.apply(_)))
},
group(books, filters, "Theme", Theme.values.map(Filter.apply(_))),
group(books, filters, "Genre", Genre.values.map(Filter.apply(_))),
group(books, filters, "Niveau", Level.values.map(Filter.apply(_))),
group(books, filters, "Période", Period.values.map(Filter.apply(_)))
)
}
def group(
books: Rx[Seq[Book]],
filters: Var[Seq[Filter]],
name: String,
groupFilters: Seq[Filter]
)(
implicit context: Ctx.Data
): Frag = {
val filtersWithCount = Rx {
groupFilters
.filter(filter => !Filter.contains(filters(), filter))
.map(filter => (filter, Book.filter(books(), filter +: filters()).length))
.filter(_._2 > 0)
}
if(filtersWithCount().isEmpty)
span("")
else
div(
FiltersMenuStyle.group,
div(FiltersMenuStyle.groupTitle, name),
div(
filtersWithCount().map { case (filter, count) =>
button(
FiltersMenuStyle.filter,
RxAttr(onclick, Rx(() => filters() = filter +: filters())),
span(s"${filter.name} ($count)")
)
}
)
)
}
}
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