[feature] ocr QR screen

[dnsBlah]

Pull playername from screenshot, making use of ocr.space api

File based image

$ocrSpaceAPI = 'myAPIcodehere';
$uploadFile = 'local path to file to be uploaded';

$ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, 'https://api.ocr.space/parse/image');
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'apikey: ' . $ocrSpaceAPI
    ));

    $imgType = pathinfo($uploadFile, PATHINFO_EXTENSION);
    $imgData = file_get_contents($uploadFile);
    $base64data = 'data:image/' . strtolower($imgType) . ';base64,' . base64_encode($imgData);
    curl_setopt($ch, CURLOPT_POSTFIELDS, array(
        'base64Image' => trim($base64data)
    ));
    // Execute the request
    $chResponse = curl_exec($ch);
    if($chResponse === false) {
        //Something went wrong
    } else {
        $apiResult = json_decode($chResponse,true);
        if(is_array($apiResult)) {
            if(array_key_exists('OCRExitCode',$apiResult)) {
                if(intval($apiResult['OCRExitCode']) === 1) {
                    $ocrResults = '';
                    foreach($apiResult['ParsedResults'] as $partResult) {
                        $ocrResults .= $partResult['ParsedText'];
                    }                    
                    $ocrLines = explode('
',$ocrResults);
                    $tTrainername = false;
                    foreach($ocrLines as $ocrLine) {
                        if($tTrainername === true) {
                            $tTrainername = trim($ocrLine);
                            break;
                        }
                        if(stristr($ocrLine, 'TRAINER NAME')) {
                            $tTrainername = true;
                        }
                    }
                    if($tTrainername !== false && $tTrainername !== true) {
////Trainer name found here////
                    } else {
                        echo 'Unable to parse trainername?!';
                    }
                } else {
                    //Something went wrong
                    /*
                     * $apiResult['ErrorMessage']
                     * $apiResult['ErrorDetails']
                     */
                }
            } else {
                //Something went wrong, unexpected response
            }
        } else {
            //Something went wrong response from api is not an json array
        }
    }

URL based image

$ocrSpaceAPI = 'myAPIcodehere';
$imageURL = 'full public path to image';

$ch = curl_init();
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, 'https://api.ocr.space/parse/image');
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'apikey: ' . $ocrSpaceAPI
    ));

    curl_setopt($ch, CURLOPT_POSTFIELDS, array(
        'url' => trim($imageURL)
    ));
    // Execute the request
    $chResponse = curl_exec($ch);
    if($chResponse === false) {
        //Something went wrong
    } else {
        $apiResult = json_decode($chResponse,true);
        if(is_array($apiResult)) {
            if(array_key_exists('OCRExitCode',$apiResult)) {
                if(intval($apiResult['OCRExitCode']) === 1) {
                    $ocrResults = '';
                    foreach($apiResult['ParsedResults'] as $partResult) {
                        $ocrResults .= $partResult['ParsedText'];
                    }                    
                    $ocrLines = explode('
',$ocrResults);
                    $tTrainername = false;
                    foreach($ocrLines as $ocrLine) {
                        if($tTrainername === true) {
                            $tTrainername = trim($ocrLine);
                            break;
                        }
                        if(stristr($ocrLine, 'TRAINER NAME')) {
                            $tTrainername = true;
                        }
                    }
                    if($tTrainername !== false && $tTrainername !== true) {
////Trainer name found here////
                    } else {
                        echo 'Unable to parse trainername?!';
                    }
                } else {
                    //Something went wrong
                    /*
                     * $apiResult['ErrorMessage']
                     * $apiResult['ErrorDetails']
                     */
                }
            } else {
                //Something went wrong, unexpected response
            }
        } else {
            //Something went wrong response from api is not an json array
        }
    }

[jinnatar]

This is a good start but needs to be reworked either by the original author or by someone else interested into a full feature:

• We need more information in this issue explaining the motivation & use case of the feature. My assumption that this is to allow users to send a screenshot of their friend code QR which is then used to parse their trainer name & friend code?
• Once the motivation & design are clear, this should be turned into a PR against the dev branch.
• If we want to support both file and URL based images, the two should be combined into one codebase that can handle both. For example, take common functionality and abstract it into a function, and then just have two different interface functions that do the url / file specific bits and call the internal function.
• The function should be standalone but use our existing curl wrappers.
• Config values need to be added for the API key and enabling the feature.
• Documentation updates are needed to explain the feature.

If multiple individuals want to start developing this I'm happy to accept a PR for a new feature branch forked off dev to pool resources to make it happen. Once it's feature complete, open a PR to merge it to dev from where it'll become part of the next release.