1 files changed, 90 insertions, 0 deletions
diff --git a/src/view/filters.ts b/src/view/filters.ts
new file mode 100644
index 0000000..9ce277b
--- /dev/null
+++ b/src/view/filters.ts
@@ -0,0 +1,90 @@
+import { h, Rx } from 'lib/rx'
+import * as Book from 'book'
+import * as I18n from 'lib/i18n'
+
+// Model
+
+export interface Model {
+  read?: Book.ReadStatus
+}
+
+const init: Model = {}
+
+// View
+
+interface ViewFiltersParams {
+  filteredBooks: Rx<Array<Book.Book>>
+  filters: Rx<Model>
+  updateFilters: (f: (filters: Model) => Model) => void
+}
+
+export function view({ filteredBooks, filters, updateFilters }: ViewFiltersParams) {
+  return h('ul',
+    h('li', [
+      h('div', { className: 'g-FilterTitle' }, 'Lecture'),
+      readFilter({
+        filteredBooks,
+        readStatus: filters.map(fs => fs.read),
+        update: (status?: Book.ReadStatus) => updateFilters(fs => {
+          fs.read = status
+          return fs
+        })
+      })
+    ])
+  )
+}
+
+interface ReadFilterParams {
+  filteredBooks: Rx<Array<Book.Book>>
+  readStatus: Rx<Book.ReadStatus | undefined>
+  update: (status?: Book.ReadStatus) => void
+}
+
+function readFilter({ filteredBooks, readStatus, update }: ReadFilterParams) {
+  return h('ul',
+    { className: 'g-Filters' },
+    readStatus.map(currentStatus => {
+      if (currentStatus !== undefined) {
+        return h('li',
+          { className: 'g-Filter g-Filter--Selected' },
+          h('button',
+            { onclick: () => update(undefined) },
+            filteredBooks.map(xs => unit(xs.length, readStatusLabels(currentStatus)))
+          )
+        )
+      } else {
+        return Book.readStatuses.map(status =>
+          filteredBooks.map(xs => {
+            const count = xs.filter(b => b.read === status).length
+
+            return count !== 0
+              ? h('li',
+                { className: 'g-Filter g-Filter--Unselected' },
+                h('button',
+                  { onclick: () => update(status) },
+                  unit(count, readStatusLabels(status))
+                )
+              )
+              : undefined
+          })
+        )
+      }
+    })
+  )
+}
+
+function unit(n: number, labels: Array<string>): string {
+  return I18n.unit(n, labels[0], labels[1], (n, str) => `${str} (${n})`)
+}
+
+function readStatusLabels(status: Book.ReadStatus): Array<string> {
+  if (status === 'Read') {
+    return ['lu', 'lus']
+  } else if (status === 'Unread') {
+    return ['non lu', 'non lus']
+  } else if (status === 'Reading') {
+    return ['en cours', 'en cours']
+  } else {
+    return ['arrêté', 'arrêtés']
+  }
+}