Add language filtering UI to search (#5459)

* Use new TextField for search bar

* Add lang dropdown

* Dialog

* Revert "Dialog"

This reverts commit 257573cd9c2a70d29df4ef5bdd503eea4ae411fe.

* Extract util, test, cleanup

* Fix formatting

* Pass through other params

* Fix sticky header

* Fix stale data, hide/show

* Improve query parsing

* Replace memo

* Couple tweaks

* Revert cancel change

* Remove unused placeholder

1 files changed, 43 insertions, 0 deletions

diff --git a/src/screens/Search/__tests__/utils.test.ts b/src/screens/Search/__tests__/utils.test.ts
new file mode 100644
index 000000000..81610cc59
--- /dev/null
+++ b/src/screens/Search/__tests__/utils.test.ts
@@ -0,0 +1,43 @@
+import {describe, expect, it} from '@jest/globals'
+
+import {parseSearchQuery} from '#/screens/Search/utils'
+
+describe(`parseSearchQuery`, () => {
+  const tests = [
+    {
+      input: `bluesky`,
+      output: {query: `bluesky`, params: {}},
+    },
+    {
+      input: `bluesky from:esb.lol`,
+      output: {query: `bluesky`, params: {from: `esb.lol`}},
+    },
+    {
+      input: `bluesky "from:esb.lol"`,
+      output: {query: `bluesky "from:esb.lol"`, params: {}},
+    },
+    {
+      input: `bluesky mentions:@esb.lol`,
+      output: {query: `bluesky`, params: {mentions: `@esb.lol`}},
+    },
+    {
+      input: `bluesky since:2021-01-01:00:00:00`,
+      output: {query: `bluesky`, params: {since: `2021-01-01:00:00:00`}},
+    },
+    {
+      input: `bluesky lang:"en"`,
+      output: {query: `bluesky`, params: {lang: `en`}},
+    },
+    {
+      input: `bluesky "literal" lang:en "from:invalid"`,
+      output: {query: `bluesky "literal" "from:invalid"`, params: {lang: `en`}},
+    },
+  ]
+
+  it.each(tests)(
+    `$input -> $output.query $output.params`,
+    ({input, output}) => {
+      expect(parseSearchQuery(input)).toEqual(output)
+    },
+  )
+})