Upload image in composer (#27)

* upload images in composer v1

* fix android compile

* reafctor image carousel into new component;
fix photo overlapping text in composer

* revert android changes

* further refactoring code into different components

* move show carousel out of the component

* fixing add photo using camera

* fix typescript issue; force mediatype photo

* change post test with photo attached;
remove auto linking settings

* use runInAction in getPhotos model

* react-hooks/exhaustive-deps fixes

* crop every photo;
make use of useCallback

* moving placeholder condition

* Cleanup

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

src/view/com/composer/SelectedPhoto.tsx

@@ -0,0 +1,87 @@
+import React, {useCallback} from 'react'
+import {Image, StyleSheet, TouchableOpacity, View} from 'react-native'
+import {FontAwesomeIcon} from '@fortawesome/react-native-fontawesome'
+import {colors} from '../../lib/styles'
+
+export const SelectedPhoto = ({
+  selectedPhotos,
+  setSelectedPhotos,
+}: {
+  selectedPhotos: string[]
+  setSelectedPhotos: React.Dispatch<React.SetStateAction<string[]>>
+}) => {
+  const imageStyle =
+    selectedPhotos.length === 1
+      ? styles.image250
+      : selectedPhotos.length === 2
+      ? styles.image175
+      : styles.image85
+
+  const handleRemovePhoto = useCallback(
+    item => {
+      setSelectedPhotos(
+        selectedPhotos.filter(filterItem => filterItem !== item),
+      )
+    },
+    [selectedPhotos, setSelectedPhotos],
+  )
+
+  return selectedPhotos.length !== 0 ? (
+    <View style={styles.imageContainer}>
+      {selectedPhotos.length !== 0 &&
+        selectedPhotos.map((item, index) => (
+          <View
+            key={`selected-image-${index}`}
+            style={[styles.image, imageStyle]}>
+            <TouchableOpacity
+              onPress={() => handleRemovePhoto(item)}
+              style={styles.removePhotoButton}>
+              <FontAwesomeIcon
+                icon="xmark"
+                size={16}
+                style={{color: colors.white}}
+              />
+            </TouchableOpacity>
+
+            <Image style={[styles.image, imageStyle]} source={{uri: item}} />
+          </View>
+        ))}
+    </View>
+  ) : null
+}
+
+const styles = StyleSheet.create({
+  imageContainer: {
+    flex: 1,
+    flexDirection: 'row',
+    marginTop: 16,
+  },
+  image: {
+    borderRadius: 8,
+    margin: 2,
+  },
+  image250: {
+    width: 250,
+    height: 250,
+  },
+  image175: {
+    width: 175,
+    height: 175,
+  },
+  image85: {
+    width: 85,
+    height: 85,
+  },
+  removePhotoButton: {
+    position: 'absolute',
+    top: 8,
+    right: 8,
+    width: 24,
+    height: 24,
+    borderRadius: 12,
+    alignItems: 'center',
+    justifyContent: 'center',
+    backgroundColor: colors.black,
+    zIndex: 1,
+  },
+})