Fixed a typo in ConfigContainer

varient -> variant

Dockerfile

@@ -15,7 +15,7 @@ WORKDIR /app
 
 RUN git clone --branch ${DATA_BRANCH} --depth 1 ${DATA_REPOSITORY}
 
-FROM bitnami/java:21.0.1-12
+FROM bitnami/java:17.0.9-11
 
 RUN apt-get update && apt-get install unzip
 

src/main/java/emu/grasscutter/config/ConfigContainer.java

@@ -111,6 +111,14 @@ public class ConfigContainer {
      * Retrieves the given from the environment variables and tries to parse it as a Set<String>.
      * <p>
      * If the environment variable is not present or the parsing fails then the default value will be returned.
+     * <p>
+     * It expects the following structure:
+     * <p>
+     * hello,world
+     * <p>
+     * |     |- second entry
+     * <p>
+     * |- first entry
      *
      * @param key          The name of the environment variable to parse
      * @param defaultValue The default value when the environment variable does not exist or is not a valid set
@@ -130,9 +138,17 @@ public class ConfigContainer {
     }
 
     /**
-     * Retrieves the given key from the environment variables and tries to parse it as a string array.
+     * Retrieves the given key from the environment variables and tries to parse it as a Set<int>.
      * <p>
      * If the environment variable is not present or the parsing fails then the default value will be returned.
+     * <p>
+     * It expects the following structure:
+     * <p>
+     * 42,1337
+     * <p>
+     * |  |- second entry
+     * <p>
+     * |- first entry
      *
      * @param key          The name of the environment variable
      * @param defaultValue The default value when the environment variable does not exist
@@ -175,6 +191,14 @@ public class ConfigContainer {
      * Retrieves the given key from the environment variables and tries to parse it as string array.
      * <p>
      * If the environment variable is not present or the parsing fails then the default value will be returned.
+     * <p>
+     * It expects the following structure:
+     * <p>
+     * hello,world
+     * <p>
+     * |     |- second entry
+     * <p>
+     * |- first entry
      *
      * @param key          The name of the environment variable to parse
      * @param defaultValue The default value when the environment variable does not exist
@@ -191,6 +215,24 @@ public class ConfigContainer {
         return currentValue.split(separator);
     }
 
+    /**
+     * Retrieves the given key from the environment variables and tries to parse it as an int array.
+     * <p>
+     * If the environment variable is not present or the parsing fails then the default value will be returned.
+     * <p>
+     * It expects the following structure:
+     * <p>
+     * 1,2
+     * <p>
+     * | |- second entry
+     * <p>
+     * |- first entry
+     *
+     * @param key          The name of the environment variable to parse
+     * @param defaultValue The default value when the environment variable does not exist
+     * @param separator    The separator which will be used for splitting up the string
+     * @return The parsed int array or the default value
+     */
     static int[] getIntArrayFromEnv(String key, int[] defaultValue, String separator) {
         var currentValue = System.getenv(key);
 
@@ -201,6 +243,27 @@ public class ConfigContainer {
         return Arrays.stream(currentValue.split(separator)).mapToInt(Integer::parseInt).toArray();
     }
 
+    /**
+     * Retrieves the given key from the environment variables and tries to parse it as a MailItem array.
+     * <p>
+     * If the environment variable is not present or the parsing fails then the default value will be returned.
+     * <p>
+     * It expects the following structure:
+     * <p>
+     * 1,1,1|2,1,1
+     * <p>
+     * | | |- Item level
+     * <p>
+     * | |- Item count
+     * <p>
+     * |- Item ID
+     *
+     * @param key             The name of the environment variable to parse
+     * @param defaultValue    The default value when the environment variable does not exist
+     * @param partsSeparator  The separator which will be used for splitting up the string into parts
+     * @param valuesSeparator The separator which will be used for splitting up the parts into values
+     * @return The parsed MailItem array or the default value
+     */
     static emu.grasscutter.game.mail.Mail.MailItem[] getMailItemsFromEnv(String key, emu.grasscutter.game.mail.Mail.MailItem[] defaultValue, String partsSeparator, String valuesSeparator) {
         var currentValue = System.getenv(key);
 
@@ -219,6 +282,26 @@ public class ConfigContainer {
         }).toArray();
     }
 
+    /**
+     * Retrieves the given key from the environment variables and tries to parse it as a MailItem array.
+     * <p>
+     * If the environment variable is not present or the parsing fails then the default value will be returned.
+     * <p>
+     * It expects the following structure:
+     * VISION_LEVEL_NORMAL,80,20|VISION_LEVEL_LITTLE_REMOTE,16,40
+     * <p>
+     * |                   |  |- Grid width
+     * <p>
+     * |                   |- Vision range
+     * <p>
+     * |- Name
+     *
+     * @param key             The name of the environment variable to parse
+     * @param defaultValue    The default value when the environment variable does not exist
+     * @param partsSeparator  The separator which will be used for splitting up the string into parts
+     * @param valuesSeparator The separator which will be used for splitting up the parts into values
+     * @return The parsed VisionOptions or the default value
+     */
     static VisionOptions[] getVisionOptionsFromEnv(String key, VisionOptions[] defaultValue, String partsSeparator, String valuesSeparator) {
         var currentValue = System.getenv(key);
 
@@ -236,6 +319,29 @@ public class ConfigContainer {
         }).toArray();
     }
 
+    /**
+     * Retrieves the given key from the environment variables and tries to parse it as a Region array.
+     * <p>
+     * If the environment variable is not present or the parsing fails then the default value will be returned.
+     * <p>
+     * It expects the following structure:
+     * <p>
+     * my region,my title,127.0.0.1,1337|my second region, my second title,127.0.0.1,42
+     * <p>
+     * |         |        |         |- port
+     * <p>
+     * |         |        |- address
+     * <p>
+     * |         |- title
+     * <p>
+     * |- name
+     *
+     * @param key             The name of the environment variable to parse
+     * @param defaultValue    The default value when the environment variable does not exist
+     * @param partsSeparator  The separator which will be used for splitting up the string into parts
+     * @param valuesSeparator The separator which will be used for splitting up the parts into values
+     * @return The parsed Region list or the default value
+     */
     static List<Region> getRegionsFromEnv(String key, List<Region> defaultValue, String partsSeparator, String valuesSeparator) {
         var currentValue = System.getenv(key);
 
@@ -263,12 +369,17 @@ public class ConfigContainer {
     /* Option containers. */
 
     public static class Database {
-        public DataStore server = new DataStore();
-        public DataStore game = new DataStore();
+        public DataStore server = new DataStore("SERVER");
+        public DataStore game = new DataStore("GAME");
 
         public static class DataStore {
-            public String connectionUri = "mongodb://localhost:27017";
-            public String collection = "grasscutter";
+            public String connectionUri;
+            public String collection;
+
+            public DataStore(String key) {
+                this.connectionUri = getStringFromEnv("DATABASE_INFO_" + key + "_CONNECTION_URI", "mongodb://localhost:27017");
+                this.collection = getStringFromEnv("DATABASE_INFO_" + key + "_COLLECTION", "grasscutter");
+            }
         }
     }
 
@@ -292,7 +403,7 @@ public class ConfigContainer {
         public boolean logCommands = getBoolFromEnv("SERVER_LOG_COMMANDS", false);
 
         /**
-         * If enabled, the 'require' Lua function will load the script's compiled varient into the context. (faster; doesn't work as well)
+         * If enabled, the 'require' Lua function will load the script's compiled variant into the context. (faster; doesn't work as well)
          * If disabled, all 'require' calls will be replaced with the referenced script's source. (slower; works better)
          */
         public boolean fastRequire = getBoolFromEnv("SERVER_FAST_REQUIRE", true);