Add multiple save file support with save slot management

.gitignore

@@ -1,5 +1,5 @@
 *.pyc
 __pycache__/
-data/*.json
+data/
 .coverage
 cov.xml

README.md

@@ -3,3 +3,15 @@
 [![Run Unit Tests](https://github.com/Stephenson-Software/FishE/actions/workflows/test.yml/badge.svg)](https://github.com/Stephenson-Software/FishE/actions/workflows/test.yml)
 
 This game allows you to explore a fishing village and perform actions in it.
+
+## Features
+
+### Multiple Save Files
+FishE supports multiple save files, allowing you to maintain different game progressions simultaneously. When you start the game, you'll see a save file manager that displays:
+
+- **Existing Saves**: View all your saved games with their progress (Day, Money, Fish count, Last Modified)
+- **Create New Save**: Start a fresh game in a new save slot
+- **Delete Save**: Remove unwanted save files
+- **Quick Load**: Load any existing save file to continue your adventure
+
+Each save file is stored in its own slot (slot_1, slot_2, etc.) in the `data/` directory, ensuring your saves never conflict with each other.

src/fishE.py

@@ -1,4 +1,5 @@
 import os
+import json
 from location import bank, docks, home, shop, tavern
 from location.enum.locationType import LocationType
 from player.player import Player
@@ -9,6 +10,7 @@
 from world.timeService import TimeService
 from stats.stats import Stats
 from ui.userInterface import UserInterface
+from saveFileManager import SaveFileManager
 
 
 # @author Daniel McCoy Stephenson
@@ -19,27 +21,31 @@ def __init__(self):
         self.playerJsonReaderWriter = PlayerJsonReaderWriter()
         self.timeServiceJsonReaderWriter = TimeServiceJsonReaderWriter()
         self.statsJsonReaderWriter = StatsJsonReaderWriter()
+        self.saveFileManager = SaveFileManager()
+
+        # Migrate old save files to new format if they exist
+        self.saveFileManager.migrate_old_save_files()
+
+        # Show save file selection menu
+        self._selectSaveFile()
 
         # if save file exists, load it
-        if (
-            os.path.exists("data/player.json")
-            and os.path.getsize("data/player.json") > 0
-        ):
+        player_path = self.saveFileManager.get_save_path("player.json")
+        if os.path.exists(player_path) and os.path.getsize(player_path) > 0:
             self.loadPlayer()
         else:
             self.player = Player()
 
         # if save file exists, load it
-        if os.path.exists("data/stats.json") and os.path.getsize("data/stats.json") > 0:
+        stats_path = self.saveFileManager.get_save_path("stats.json")
+        if os.path.exists(stats_path) and os.path.getsize(stats_path) > 0:
             self.loadStats()
         else:
             self.stats = Stats()
 
         # if save file exists, load it
-        if (
-            os.path.exists("data/timeService.json")
-            and os.path.getsize("data/timeService.json") > 0
-        ):
+        time_path = self.saveFileManager.get_save_path("timeService.json")
+        if os.path.exists(time_path) and os.path.getsize(time_path) > 0:
             self.loadTimeService()
         else:
             self.timeService = TimeService(self.player, self.stats)
@@ -88,6 +94,102 @@ def __init__(self):
 
         self.currentLocation = LocationType.HOME
 
+    def _selectSaveFile(self):
+        """Display save file selection menu and let user choose"""
+        while True:  # Use loop instead of recursion to avoid stack overflow
+            save_files = self.saveFileManager.list_save_files()
+
+            print("\n" * 20)
+            print("-" * 75)
+            print("\n FISHE - SAVE FILE MANAGER")
+            print("-" * 75)
+
+            if save_files:
+                print("\n Available Save Files:\n")
+                for save in save_files:
+                    metadata = save["metadata"]
+                    print(f" [{save['slot']}] Save Slot {save['slot']}")
+                    print(f"     Day: {metadata.get('day', 1)}")
+                    print(f"     Money: ${metadata.get('money', 0)}")
+                    print(f"     Fish: {metadata.get('fishCount', 0)}")
+                    print(f"     Last Modified: {metadata.get('last_modified', 'Unknown')}")
+                    print()
+
+            next_slot = self.saveFileManager.get_next_available_slot()
+            if next_slot is not None:
+                print(f" [N] Create New Save (Slot {next_slot})")
+            if save_files:
+                print(" [D] Delete a Save File")
+            print(" [Q] Quit")
+            print("-" * 75)
+
+            choice = input("\n Select an option: ").strip().upper()
+
+            if choice == "Q":
+                print("\n Goodbye!")
+                exit(0)
+            elif choice == "N" and next_slot is not None:
+                self.saveFileManager.select_save_slot(next_slot)
+                print(f"\n Creating new save in Slot {next_slot}...")
+                return
+            elif choice == "N" and next_slot is None:
+                print(" All save slots are full. Please delete a save first.")
+            elif choice == "D" and save_files:
+                if self._deleteSaveFile(save_files):
+                    # Continue loop to show updated menu
+                    continue
+                else:
+                    # User cancelled, continue loop
+                    continue
+            elif choice.isdigit():
+                slot_num = int(choice)
+                if any(save["slot"] == slot_num for save in save_files):
+                    self.saveFileManager.select_save_slot(slot_num)
+                    print(f"\n Loading Save Slot {slot_num}...")
+                    return
+                else:
+                    print(" Invalid slot number. Try again.")
+            else:
+                print(" Invalid choice. Try again.")
+
+    def _deleteSaveFile(self, save_files):
+        """Delete a save file. Returns True if a file was deleted, False if cancelled."""
+        print("\n" * 20)
+        print("-" * 75)
+        print("\n DELETE SAVE FILE")
+        print("-" * 75)
+        print("\n Which save file would you like to delete?\n")
+
+        for save in save_files:
+            print(f" [{save['slot']}] Save Slot {save['slot']}")
+
+        print(" [C] Cancel")
+        print("-" * 75)
+
+        while True:
+            choice = input("\n Select a slot to delete: ").strip().upper()
+
+            if choice == "C":
+                return False
+            elif choice.isdigit():
+                slot_num = int(choice)
+                if any(save["slot"] == slot_num for save in save_files):
+                    confirm = input(f"\n Are you sure you want to delete Slot {slot_num}? (Y/N): ").strip().upper()
+                    if confirm == "Y":
+                        if self.saveFileManager.delete_save_slot(slot_num):
+                            print(f"\n Slot {slot_num} deleted successfully.")
+                            input("\n [ CONTINUE ]")
+                            return True
+                        else:
+                            print(f"\n Failed to delete Slot {slot_num}.")
+                            return False
+                    else:
+                        return False
+                else:
+                    print(" Invalid slot number. Try again.")
+            else:
+                print(" Invalid choice. Try again.")
+
     def play(self):
         while self.running:
             # change location
@@ -103,37 +205,53 @@ def play(self):
             self.save()
 
     def save(self):
-        # create data directory
-        if not os.path.exists("data"):
-            os.makedirs("data")
+        # create data directory - use SaveFileManager's directory
+        if not os.path.exists(self.saveFileManager.data_directory):
+            os.makedirs(self.saveFileManager.data_directory, exist_ok=True)
 
-        playerSaveFile = open("data/player.json", "w")
-        self.playerJsonReaderWriter.writePlayerToFile(self.player, playerSaveFile)
+        try:
+            with open(self.saveFileManager.get_save_path("player.json"), "w") as playerSaveFile:
+                self.playerJsonReaderWriter.writePlayerToFile(self.player, playerSaveFile)
 
-        timeServiceSaveFile = open("data/timeService.json", "w")
-        self.timeServiceJsonReaderWriter.writeTimeServiceToFile(
-            self.timeService, timeServiceSaveFile
-        )
+            with open(self.saveFileManager.get_save_path("timeService.json"), "w") as timeServiceSaveFile:
+                self.timeServiceJsonReaderWriter.writeTimeServiceToFile(
+                    self.timeService, timeServiceSaveFile
+                )
 
-        statsSaveFile = open("data/stats.json", "w")
-        self.statsJsonReaderWriter.writeStatsToFile(self.stats, statsSaveFile)
+            with open(self.saveFileManager.get_save_path("stats.json"), "w") as statsSaveFile:
+                self.statsJsonReaderWriter.writeStatsToFile(self.stats, statsSaveFile)
+        except (IOError, OSError) as e:
+            print(f"\n Warning: Failed to save game: {e}")
+            # Game continues even if save fails
 
     def loadPlayer(self):
-        playerSaveFile = open("data/player.json", "r")
-        self.player = self.playerJsonReaderWriter.readPlayerFromFile(playerSaveFile)
-        playerSaveFile.close()
+        try:
+            with open(self.saveFileManager.get_save_path("player.json"), "r") as playerSaveFile:
+                self.player = self.playerJsonReaderWriter.readPlayerFromFile(playerSaveFile)
+        except (IOError, OSError, json.JSONDecodeError) as e:
+            print(f"\n Warning: Failed to load player data: {e}")
+            print(" Creating new player...")
+            self.player = Player()
 
     def loadStats(self):
-        statsSaveFile = open("data/stats.json", "r")
-        self.stats = self.statsJsonReaderWriter.readStatsFromFile(statsSaveFile)
-        statsSaveFile.close()
+        try:
+            with open(self.saveFileManager.get_save_path("stats.json"), "r") as statsSaveFile:
+                self.stats = self.statsJsonReaderWriter.readStatsFromFile(statsSaveFile)
+        except (IOError, OSError, json.JSONDecodeError) as e:
+            print(f"\n Warning: Failed to load stats data: {e}")
+            print(" Creating new stats...")
+            self.stats = Stats()
 
     def loadTimeService(self):
-        timeServiceSaveFile = open("data/timeService.json", "r")
-        self.timeService = self.timeServiceJsonReaderWriter.readTimeServiceFromFile(
-            timeServiceSaveFile, self.player, self.stats
-        )
-        timeServiceSaveFile.close()
+        try:
+            with open(self.saveFileManager.get_save_path("timeService.json"), "r") as timeServiceSaveFile:
+                self.timeService = self.timeServiceJsonReaderWriter.readTimeServiceFromFile(
+                    timeServiceSaveFile, self.player, self.stats
+                )
+        except (IOError, OSError, json.JSONDecodeError) as e:
+            print(f"\n Warning: Failed to load time service data: {e}")
+            print(" Creating new time service...")
+            self.timeService = TimeService(self.player, self.stats)
 
 
 if __name__ == "__main__":