feat: create Secrets.java to contain project secrets

Author: surajkumar

application/src/main/java/org/togetherjava/tjbot/secrets/Secrets.java

@@ -0,0 +1,99 @@
+package org.togetherjava.tjbot.secrets;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.Objects;
+
+public class Secrets {
+    private final String token;
+    private final String githubApiKey;
+    private final String logInfoChannelWebhook;
+    private final String logErrorChannelWebhook;
+    private final String openaiApiKey;
+    private final String jshellBaseUrl;
+
+    @SuppressWarnings("ConstructorWithTooManyParameters")
+    @JsonCreator(mode = JsonCreator.Mode.PROPERTIES)
+    private Secrets(@JsonProperty(value = "token", required = true) String token,
+            @JsonProperty(value = "githubApiKey", required = true) String githubApiKey,
+            @JsonProperty(value = "logInfoChannelWebhook",
+                    required = true) String logInfoChannelWebhook,
+            @JsonProperty(value = "logErrorChannelWebhook",
+                    required = true) String logErrorChannelWebhook,
+            @JsonProperty(value = "openaiApiKey", required = true) String openaiApiKey,
+            @JsonProperty(value = "jshellBaseUrl", required = true) String jshellBaseUrl) {
+        this.token = Objects.requireNonNull(token);
+        this.githubApiKey = Objects.requireNonNull(githubApiKey);
+        this.logInfoChannelWebhook = Objects.requireNonNull(logInfoChannelWebhook);
+        this.logErrorChannelWebhook = Objects.requireNonNull(logErrorChannelWebhook);
+        this.openaiApiKey = Objects.requireNonNull(openaiApiKey);
+        this.jshellBaseUrl = Objects.requireNonNull(jshellBaseUrl);
+    }
+
+    public static Secrets load(Path path) throws IOException {
+        return new ObjectMapper().registerModule(new JavaTimeModule())
+            .readValue(path.toFile(), Secrets.class);
+    }
+
+    /**
+     * Gets the token of the Discord bot to connect this application to.
+     *
+     * @return the Discord bot token
+     */
+    public String getToken() {
+        return token;
+    }
+
+    /**
+     * Gets the API Key of GitHub.
+     *
+     * @return the API Key
+     * @see <a href=
+     *      "https://docs.github.com/en/enterprise-server@3.4/authentication/keeping-your-account-and-data-secure/creating-a-personal-access-token">Create
+     *      a GitHub key</a>
+     */
+    public String getGitHubApiKey() {
+        return githubApiKey;
+    }
+
+    /**
+     * The Discord channel webhook for posting log messages with levels INFO, DEBUG and TRACE.
+     *
+     * @return the webhook URL
+     */
+    public String getLogInfoChannelWebhook() {
+        return logInfoChannelWebhook;
+    }
+
+    /**
+     * The Discord channel webhook for posting log messages with levels FATAL, ERROR and WARNING.
+     *
+     * @return the webhook URL
+     */
+    public String getLogErrorChannelWebhook() {
+        return logErrorChannelWebhook;
+    }
+
+    /**
+     * The OpenAI token needed for communicating with OpenAI ChatGPT.
+     *
+     * @return the OpenAI API Token
+     */
+    public String getOpenaiApiKey() {
+        return openaiApiKey;
+    }
+
+    /**
+     * The base URL for the jshell REST API.
+     *
+     * @return the jshell base url
+     */
+    public String getJshellBaseUrl() {
+        return jshellBaseUrl;
+    }
+}