From 5449a11f4c404e505ba4369bbdbefd73eeda0be3 Mon Sep 17 00:00:00 2001
From: Shravya Ramesh <shravs1208@gmail.com>
Date: Fri, 18 Jun 2021 10:51:38 -0700
Subject: Add image manipulation for cropping

---
 src/components/comments/ZoomInCropper.tsx | 85 ++++++++++++++++++++++++++++---
 src/components/moments/MomentPost.tsx     |  2 +-
 src/components/profile/PublicProfile.tsx  |  4 +-
 3 files changed, 83 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/components/comments/ZoomInCropper.tsx b/src/components/comments/ZoomInCropper.tsx
index 54acc26e..79047b41 100644
--- a/src/components/comments/ZoomInCropper.tsx
+++ b/src/components/comments/ZoomInCropper.tsx
@@ -2,13 +2,21 @@ import {RouteProp} from '@react-navigation/core';
 import {useFocusEffect} from '@react-navigation/native';
 import {StackNavigationProp} from '@react-navigation/stack';
 import React, {useCallback, useEffect, useState} from 'react';
-import {Dimensions, Image, StyleSheet, TouchableOpacity} from 'react-native';
+import {
+  Dimensions,
+  Image,
+  StyleSheet,
+  TouchableOpacity,
+  View,
+} from 'react-native';
 import {normalize} from 'react-native-elements';
-import ImageZoom from 'react-native-image-pan-zoom';
+import ImageZoom, {IOnMove} from 'react-native-image-pan-zoom';
 import CloseIcon from '../../assets/ionicons/close-outline.svg';
 import {MainStackParams} from '../../routes';
-import {HeaderHeight, SCREEN_WIDTH} from '../../utils';
-import {TaggSquareButton} from '../common';
+import {HeaderHeight, SCREEN_HEIGHT, SCREEN_WIDTH} from '../../utils';
+import {LoadingIndicator, TaggSquareButton} from '../common';
+import PhotoManipulator from 'react-native-photo-manipulator';
+import {trackPromise} from 'react-promise-tracker';
 
 type ZoomInCropperRouteProps = RouteProp<MainStackParams, 'ZoomInCropper'>;
 type ZoomInCropperNavigationProps = StackNavigationProp<
@@ -51,6 +59,70 @@ export const ZoomInCropper: React.FC<ZoomInCropperProps> = ({
       );
     }
   }, []);
+
+  const handleNext = () => {
+    console.log('x0: ', x0, 'x1: ', x1, 'y0: ', y0, 'y1: ', y1);
+    if (
+      x0 !== undefined &&
+      x1 !== undefined &&
+      y0 !== undefined &&
+      y1 !== undefined &&
+      image.sourceURL
+    ) {
+      console.log('x0x1y0y1');
+      PhotoManipulator.crop(image.sourceURL, {
+        x: x0,
+        y: y1,
+        width: Math.abs(x0 - x1),
+        height: Math.abs(y0 - y1),
+      })
+        .then((croppedURL) => console.log('croppedURL: ', croppedURL))
+        .catch((err) => console.log('err: ', err));
+    }
+    console.log('crop photo and send to caption screen');
+  };
+
+  const [x0, setX0] = useState<number>();
+  const [x1, setX1] = useState<number>();
+  const [y0, setY0] = useState<number>();
+  const [y1, setY1] = useState<number>();
+
+  const onMove = (position: IOnMove) => {
+    Image.getSize(
+      image.path,
+      (w, h) => {
+        const x = position.positionX;
+        const y = position.positionY;
+        const scale = position.scale;
+        const screen_ratio = SCREEN_HEIGHT / SCREEN_WIDTH;
+        let x0 = w / 2 - x * (w / SCREEN_WIDTH) - w / 2 / scale;
+        let x1 = w / 2 - x * (w / SCREEN_WIDTH) + w / 2 / scale;
+        if (x0 < 0) {
+          x0 = 0;
+        }
+        if (x1 > w) {
+          x1 = w;
+        }
+        const x_distance = Math.abs(x1 - x0);
+        const y_distance = screen_ratio * x_distance;
+        let y0 = h / 2 - y * (h / SCREEN_HEIGHT) + y_distance / 2;
+        let y1 = h / 2 - y * (h / SCREEN_HEIGHT) - y_distance / 2;
+        if (y0 > h) {
+          y0 = h;
+        }
+        if (y1 < 0) {
+          y1 = 0;
+        }
+        console.log('onMove x0: ', x0, 'x1: ', x1, 'y0: ', y0, 'y1: ', y1);
+        setX0(x0);
+        setX1(x1);
+        setY0(y0);
+        setY1(y1);
+      },
+      (err) => console.log(err),
+    );
+  };
+
   return (
     <>
       <TouchableOpacity
@@ -63,7 +135,8 @@ export const ZoomInCropper: React.FC<ZoomInCropperProps> = ({
         cropWidth={Dimensions.get('window').width}
         cropHeight={Dimensions.get('window').height}
         imageWidth={SCREEN_WIDTH}
-        imageHeight={SCREEN_WIDTH / aspectRatio}>
+        imageHeight={SCREEN_WIDTH / aspectRatio}
+        onMove={onMove}>
         <Image
           style={{width: SCREEN_WIDTH, height: SCREEN_WIDTH / aspectRatio}}
           source={{
@@ -72,7 +145,7 @@ export const ZoomInCropper: React.FC<ZoomInCropperProps> = ({
         />
       </ImageZoom>
       <TaggSquareButton
-        onPress={() => console.log('Navigate to caption screen')}
+        onPress={handleNext}
         title={'Next'}
         buttonStyle={'normal'}
         buttonColor={'blue'}
diff --git a/src/components/moments/MomentPost.tsx b/src/components/moments/MomentPost.tsx
index 3840cb08..0f105c0d 100644
--- a/src/components/moments/MomentPost.tsx
+++ b/src/components/moments/MomentPost.tsx
@@ -115,7 +115,7 @@ const MomentPost: React.FC<MomentPostProps> = ({
   );
   const [commentPreview, setCommentPreview] =
     useState<MomentCommentPreviewType | null>(moment.comment_preview);
-  const {keyboardVisible, scrollTo} = useContext(MomentContext);
+  const {keyboardVisible} = useContext(MomentContext);
   const [hideText, setHideText] = useState(false);
 
   const [isFullScreen, setIsFullScreen] = useState<boolean>(false);
diff --git a/src/components/profile/PublicProfile.tsx b/src/components/profile/PublicProfile.tsx
index 8a80c56f..6b991d7c 100644
--- a/src/components/profile/PublicProfile.tsx
+++ b/src/components/profile/PublicProfile.tsx
@@ -87,7 +87,9 @@ const PublicProfile: React.FC<ContentProps> = ({
               scrollViewRef.current
             ) {
               setScrollEnabled(false);
-              scrollViewRef.current.scrollTo({y: 0});
+              if (scrollViewRef && scrollViewRef.current) {
+                scrollViewRef.current.scrollTo({y: 0});
+              }
               navigation.navigate('MomentUploadPrompt', {
                 screenType,
                 momentCategory: momentCategories[0],
-- 
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