1 files changed, 80 insertions, 0 deletions
diff --git a/src/main/java/info/selflearner/ocr/controller/ApiController.java b/src/main/java/info/selflearner/ocr/controller/ApiController.java
new file mode 100644
index 0000000..d3723ca
--- /dev/null
+++ b/src/main/java/info/selflearner/ocr/controller/ApiController.java
@@ -0,0 +1,80 @@
+package info.selflearner.ocr.controller;
+
+import info.selflearner.ocr.util.Excel;
+import info.selflearner.ocr.util.OCR;
+import info.selflearner.ocr.model.Passport;
+import net.sourceforge.tess4j.TesseractException;
+import org.springframework.core.io.FileSystemResource;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.multipart.MultipartFile;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+
+import java.io.*;
+import java.util.ArrayList;
+
+@Controller
+public class ApiController {
+
+    @GetMapping("/")
+    public String index(Model model) {
+        String ocr = (String) model.asMap().get("ocr");
+        model.addAttribute("ocr", ocr);
+        return "index";
+    }
+
+    @PostMapping("/api/files")
+    public String files(@RequestParam("files") MultipartFile[] files, String eng, String rus, String uzb, String uzb_cyrl, String documentType, RedirectAttributes redirectAttributes) throws IOException {
+        ArrayList<String> ocrResults = new ArrayList<>();
+        ArrayList<Passport> passportArrayList = new ArrayList<>();
+        StringBuilder languages = new StringBuilder();
+
+        if ("other".equals(documentType)) {
+            if (eng != null) languages.append(eng).append("+");
+            if (rus != null) languages.append(rus).append("+");
+            if (uzb != null) languages.append(uzb).append("+");
+            if (uzb_cyrl != null) languages.append(uzb_cyrl).append("+");
+            languages.deleteCharAt(languages.toString().length() - 1);
+        }
+
+        for (MultipartFile file : files) {
+            File savedFile = new File(System.getProperty("java.io.tmpdir") + "/" + file.getOriginalFilename());
+            savedFile.createNewFile();
+            try (InputStream inputStream = file.getInputStream();
+                 OutputStream outputStream = new FileOutputStream(savedFile)) {
+                int read;
+                byte[] bytes = new byte[1024];
+
+                while ((read = inputStream.read(bytes)) != -1) {
+                    outputStream.write(bytes, 0, read);
+                }
+                if ("other".equals(documentType)) {
+                    ocrResults.add(OCR.perform(savedFile, languages.toString()));
+                } else if ("passport".equals(documentType)) {
+                    passportArrayList.add(OCR.performPassport(savedFile));
+                }
+            } catch (IOException | TesseractException | InterruptedException exception) {
+                throw new RuntimeException(exception);
+            }
+        }
+        if ("other".equals(documentType)) {
+            redirectAttributes.addFlashAttribute("ocrs", ocrResults);
+        } else if ("passport".equals(documentType)) {
+            redirectAttributes.addFlashAttribute("passports", passportArrayList);
+            Excel.write(passportArrayList);
+        }
+
+        return "redirect:/";
+    }
+
+    @GetMapping("/api/passport/excel")
+    @ResponseBody
+    public FileSystemResource downloadPassportExcel(@RequestParam(value = "filename") String filename) {
+        return new FileSystemResource(new File(System.getProperty("java.io.tmpdir") + "/" + filename));
+    }
+
+}