From df499e2f71ebd70bf3bbef6849f9e02d847b293f Mon Sep 17 00:00:00 2001
From: Nexllon <75459029+Nexllon@users.noreply.github.com>
Date: Tue, 14 May 2024 16:42:30 -0300
Subject: [PATCH] offline mode - adds daily run and fixes clear freezes (#834)

* offline mode - adds daily run and fixes clear freezes

* removed unused import
---
 src/data/daily-run.ts   |  5 +++--
 src/phases.ts           | 29 ++++++++++++++++++++++++-----
 src/system/game-data.ts | 30 ++++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 7 deletions(-)

diff --git a/src/data/daily-run.ts b/src/data/daily-run.ts
index 5371b87a6..c1a1206f3 100644
--- a/src/data/daily-run.ts
+++ b/src/data/daily-run.ts
@@ -13,14 +13,15 @@ export interface DailyRunConfig {
 }
 
 export function fetchDailyRunSeed(): Promise<string> {
-  return new Promise<string>(resolve => {
+  return new Promise<string>((resolve, reject) => {
     Utils.apiFetch('daily/seed').then(response => {
       if (!response.ok) {
         resolve(null);
         return;
       }
       return response.text();
-    }).then(seed => resolve(seed));
+    }).then(seed => resolve(seed))
+    .catch(err => reject(err));
   });
 }
 
diff --git a/src/phases.ts b/src/phases.ts
index 8aa179d35..123169021 100644
--- a/src/phases.ts
+++ b/src/phases.ts
@@ -289,7 +289,7 @@ export class TitlePhase extends Phase {
       }
       this.scene.sessionSlotId = slotId;
 
-      fetchDailyRunSeed().then(seed => {
+      const generateDaily = (seed: string) => {
         this.scene.gameMode = gameModes[GameModes.DAILY];
 
         this.scene.setSeed(seed);
@@ -332,9 +332,18 @@ export class TitlePhase extends Phase {
           this.scene.sessionPlayTime = 0;
           this.end();
         });
-      }).catch(err => {
-        console.error("Failed to load daily run:\n", err);
-      });
+      };
+      
+      // If Online, calls seed fetch from db to generate daily run. If Offline, generates a daily run based on current date.
+      if (!Utils.isLocal) {
+        fetchDailyRunSeed().then(seed => {
+          generateDaily(seed);
+        }).catch(err => {
+          console.error("Failed to load daily run:\n", err);
+        });
+      } else {
+        generateDaily(btoa(new Date().toISOString().substring(0, 10)));
+      }
     });
   }
 
@@ -3612,10 +3621,20 @@ export class GameOverPhase extends BattlePhase {
         });
       });
     };
+
+    /* Added a local check to see if the game is running offline on victory
+    If Online, execute apiFetch as intended
+    If Offline, execute offlineNewClear(), a localStorage implementation of newClear daily run checks */
     if (this.victory) {
-      Utils.apiFetch(`savedata/newclear?slot=${this.scene.sessionSlotId}`, true)
+      if (!Utils.isLocal) {
+        Utils.apiFetch(`savedata/newclear?slot=${this.scene.sessionSlotId}`, true)
         .then(response => response.json())
         .then(newClear => doGameOver(newClear));
+      } else {
+        this.scene.gameData.offlineNewClear(this.scene).then(result => {
+          doGameOver(result);
+        });
+      }
     } else
       doGameOver(false);
   }
diff --git a/src/system/game-data.ts b/src/system/game-data.ts
index 7f6e1475b..5e942b4fa 100644
--- a/src/system/game-data.ts
+++ b/src/system/game-data.ts
@@ -759,6 +759,36 @@ export class GameData {
     });
   }
 
+  /* Defines a localStorage item 'daily' to check on clears, offline implementation of savedata/newclear API
+  If a GameModes clear other than Daily is checked, newClear = true as usual
+  If a Daily mode is cleared, checks if it was already cleared before, based on seed, and returns true only to new daily clear runs */
+  offlineNewClear(scene: BattleScene): Promise<boolean> {
+    return new Promise<boolean>(resolve => {
+      const sessionData = this.getSessionSaveData(scene);
+      const seed = sessionData.seed;
+      let daily: string[] = [];
+
+      if (sessionData.gameMode == GameModes.DAILY) {
+        if (localStorage.hasOwnProperty('daily')) {
+          daily = JSON.parse(atob(localStorage.getItem('daily')));
+          if (daily.includes(seed)) {
+            return resolve(false);
+          } else {
+            daily.push(seed);
+            localStorage.setItem('daily', btoa(JSON.stringify(daily)));
+            return resolve(true);
+          }
+        } else {
+          daily.push(seed);
+          localStorage.setItem('daily', btoa(JSON.stringify(daily)));
+          return resolve(true);
+        }
+      } else {
+        return resolve(true);
+      }
+    });
+  }
+
   tryClearSession(scene: BattleScene, slotId: integer): Promise<[success: boolean, newClear: boolean]> {
     return new Promise<[boolean, boolean]>(resolve => {
       if (bypassLogin) {