Make Result View

src/main/java/com/unitime/App.java

@@ -1,13 +1,53 @@
 package com.unitime;
 
-/**
- * Hello world!
- *
- */
-public class App 
-{
-    public static void main( String[] args )
-    {
-        System.out.println( "Hello World!" );
+import java.util.List;
+import java.util.Scanner;
+
+
+import com.unitime.UI.ResultView;
+import com.unitime.feature.InputHandler;
+import com.unitime.feature.Course;
+import com.unitime.algorthm.Scheduler; 
+
+public class App {
+    public static void main( String[] args ) {
+
+        Scanner sc = new Scanner(System.in);
+
+        System.out.println("\n=== Welcome to UniTime-Solver! ==="); 
+        System.out.println("Press [ENTER] to start...");
+        sc.nextLine();
+
+        while(true) {
+
+            InputHandler inputHandler = new InputHandler(); 
+
+            System.out.println("\n[Algorithm] Generating optimal timetables...");
+            Scheduler scheduler = new Scheduler();
+            List<List<Course>> results = scheduler.schedule(
+                inputHandler.getMandatoryList(), 
+                inputHandler.getOptionalList(), 
+                inputHandler.getMaxCredit()
+            );
+
+            int currentIndex = 0;
+            boolean viewingResults = true;
+
+            while (viewingResults) {
+
+                String command = ResultView.printBatchAndGetInput(results, currentIndex, sc);
+
+                if (command.equals("next")) {
+
+                    if (currentIndex + 5 < results.size()) {
+                        currentIndex += 5;
+                    } else {
+                    }
+                } 
+                else if (command.equals("edit")) {
+                    viewingResults = false;
+                }
+            }
+        }
     }
 }

src/main/java/com/unitime/UI/ResultView.java

@@ -0,0 +1,138 @@
+package com.unitime.UI;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Scanner;
+import com.unitime.feature.Course;
+
+public class ResultView {
+
+    // =============================================================
+    // 1. Style constant (ANSI Code)
+    // =============================================================
+    public static final String RESET = "\u001B[0m";
+    public static final String RED = "\u001B[31m";
+    public static final String GREEN = "\u001B[32m";
+    public static final String YELLOW = "\u001B[33m";
+    public static final String BLUE = "\u001B[34m";
+    public static final String PURPLE = "\u001B[35m";
+    public static final String CYAN = "\u001B[36m";
+    public static final String BLACK = "\u001B[30m";
+    public static final String BOLD = "\u001B[1m";
+
+    private static final int BATCH_SIZE = 5;
+
+    /**
+     * [Core Method]
+     * Displays the current batch of timetables and returns the user's selection (next/edit).
+     * Note: This method is purely for display and input retrieval; it does not contain pagination logic.
+     * * @param allSchedules The complete list of generated timetables.
+     * @param currentIndex The starting index for the current batch (managed externally by the controller).
+     * @param scanner      The Scanner instance for receiving user input.
+     * @return The command entered by the user (e.g., "next" or "edit").
+     */
+    public static String printBatchAndGetInput(List<List<Course>> allSchedules, int currentIndex, Scanner scanner) {
+
+        // 1. Exception for no timetable
+        if (allSchedules == null || allSchedules.isEmpty()) {
+            System.out.println(RED + "\n( T_T ) No timetables found." + RESET);
+            return "edit"; // Instantly go to "edit"
+        }
+
+        int totalSize = allSchedules.size();
+        int endIndex = Math.min(currentIndex + BATCH_SIZE, totalSize);
+        boolean hasNext = (endIndex < totalSize);
+
+        // 2. Print Header (Print in each new page)
+        System.out.println(CYAN + "\n========================= Timetable =========================" + RESET);
+        System.out.println(YELLOW + BOLD + "  (*'▽ '*) Found " + totalSize + " timetables! Showing " + (currentIndex + 1) + "~" + endIndex + " (*'▽ '*)" + RESET);
+        System.out.println(CYAN + "=============================================================" + RESET);
+
+        // 3. Print 5 timetables
+        for (int i = currentIndex; i < endIndex; i++) {
+            printSingleSchedule(i + 1, allSchedules.get(i));
+        }
+
+        // 4. Print Neviagtion menu
+        printNavigationMenu(hasNext);
+
+        // 5. Get user input and return
+        while (true) {
+        System.out.print("Your choice > ");
+        String input = scanner.nextLine().trim().toLowerCase();
+
+        //Edit: return only 'next' or 'edit'
+        if (input.equals("next") || input.equals("edit")) {
+            return input;
+        }
+
+        //Enter wrong message -> input again (loop)
+        System.out.println(RED + "Invalid command! Please type 'next' or 'edit' exactly." + RESET);
+
+
+    }
+}
+
+    /**
+     * Print each time table
+     */
+    private static void printSingleSchedule(int index, List<Course> schedule) {
+        // Sort
+        Collections.sort(schedule, (c1, c2) -> {
+            if (c1.getDay() != c2.getDay()) {
+                return Integer.compare(c1.getDay(), c2.getDay());
+            }
+            return Integer.compare(c1.getStartTime(), c2.getStartTime());
+        });
+
+        int totalCredit = 0;
+        for (Course c : schedule) totalCredit += c.getCredit();
+
+        System.out.println(PURPLE + "\n              ────────────────────────────────");
+        System.out.println(String.format("             │   Recommended Timetable No.%02d   │", index));
+        System.out.println("              ────────────────────────────────" + RESET);
+
+        if (schedule.isEmpty()) {
+             System.out.println("         " + YELLOW + "(Empty Schedule)" + RESET);
+        } else {
+            for (Course course : schedule) {
+                String dayStr = getDayString(course.getDay());
+                String timeStr = formatTime(course.getStartTime());
+
+                System.out.println("         " + GREEN + String.format("[%s %s]", dayStr, timeStr) + RESET + 
+                                   " " + course.getName() + " (" + course.getCredit() + " Credit)");
+            }
+        }
+        System.out.println("         " + BLACK + "Total: " + totalCredit + " Credits" + RESET);
+    }
+
+    /**
+     * Print choosing menu('next' or 'edit')
+     */
+    private static void printNavigationMenu(boolean hasNext) {
+        System.out.println(CYAN + "\n-------------------------------------------------------------" + RESET);
+
+        if (hasNext) {
+            System.out.println("              ( > ω < ) Select: [" + BLUE + "next" + RESET + "] or [" + RED + "edit" + RESET + "] ");
+            System.out.println("     Type '" + BLUE + "next" + RESET + "' to see more timetables.");
+        } else {
+            System.out.println("              ( > ω < ) Select: [" + RED + "edit" + RESET + "] ");
+            System.out.println("     " + YELLOW + "(End of List)" + RESET + " No more timetables.");
+        }
+
+        System.out.println("     Type '" + RED + "edit" + RESET + "' to modify your courses.");
+        System.out.println(CYAN + "-------------------------------------------------------------" + RESET);
+    }
+
+    // --- Utility Methods (Day/Time Conversion) ---
+    private static String getDayString(int day) {
+        switch (day) {
+            case 0: return "Mon"; case 1: return "Tue"; case 2: return "Wed";
+            case 3: return "Thu"; case 4: return "Fri"; default: return "???";
+        }
+    }
+
+    private static String formatTime(int minutes) {
+        return String.format("%02d:%02d", minutes / 60, minutes % 60);
+    }
+}

src/main/java/com/unitime/feature/Course.java

@@ -34,4 +34,4 @@ public String toString() {
         return String.format("%s | %d (credits) | %s ", 
                 name, credit, timeRaw);
     }
-}
+}