add logic to help resume bot from given indices

.env-sample

@@ -12,3 +12,7 @@ DELETE_CONSPIRACY_DELAY=3s
 
 # Probability of sending a conspiracy message (0.0 to 1.0)
 CONSPIRACY_PROBABILITY=0.4
+
+# Optional indices for resuming bot
+PRAISE_INDEX=5
+CONSPIRACY_INDEX=5

README.md

@@ -38,6 +38,11 @@ Create a `.env` file in the root of your project with the following keys:
 - `CONSPIRACY_PROBABILITY`: Probability (from 0.0 to 1.0) that a conspiracy message is sent after a praise. Eg, 0.4 =
   40% chance.
 
+Optional:
+- `PRAISE_INDEX`: Index of the [praises.json](./cmd/bot/praises.json) to start from, useful when resuming bot.
+- `CONSPIRACY_INDEX`: Index of the [conspiracies.json](./cmd/bot/conspiracies.json) to start from, useful when resuming
+  bot.
+
 You can view the [.env-sample](./.env-sample) as an example completed template.
 
 ### Install + Run

cmd/bot/main.go

@@ -154,6 +154,25 @@ func loadEnvConfig() error {
 		return fmt.Errorf("CONSPIRACY_PROBABILITY: %w", err)
 	}
 
+	// Get values in case of resuming at an index
+	praiseIndex = 0
+	if valStr := os.Getenv("PRAISE_INDEX"); valStr != "" {
+		praiseIndex, err = strconv.Atoi(valStr)
+		if err != nil {
+			log.Printf("[!] Warning: %s is not a valid int, using default %d", "PRAISE_INDEX", 0)
+			praiseIndex = 0
+		}
+	}
+
+	conspiracyIndex = 0
+	if valStr := os.Getenv("CONSPIRACY_INDEX"); valStr != "" {
+		conspiracyIndex, err = strconv.Atoi(valStr)
+		if err != nil {
+			log.Printf("[!] Warning: %s is not a valid int, using default %d", "CONSPIRACY_INDEX", 0)
+			conspiracyIndex = 0
+		}
+	}
+
 	return nil
 }