Add Discord automated event reminder example

README.md

@@ -96,6 +96,14 @@ Now, utilize the available connector operations.
 ```bash
 bal run
 ```
+
+## Examples
+
+The `Discord` connector provides practical examples illustrating usage in various scenarios. Explore these [examples](https://github.com/ballerina-platform/module-ballerinax-discord/tree/main/examples/), covering the following use cases:
+
+1. [Automated Event Reminders](https://github.com/ballerina-platform/module-ballerinax-discord/tree/main/examples/automated-event-reminders)
+
+
 ## Build from the source
 
 ### Prerequisites

ballerina/Module.md

@@ -86,3 +86,9 @@ Now, utilize the available connector operations.
 ```bash
 bal run
 ```
+
+## Examples
+
+The `Discord` connector provides practical examples illustrating usage in various scenarios. Explore these [examples](https://github.com/ballerina-platform/module-ballerinax-discord/tree/main/examples/), covering the following use cases:
+
+1. [Automated Event Reminders](https://github.com/ballerina-platform/module-ballerinax-discord/tree/main/examples/automated-event-reminders)

ballerina/Package.md

@@ -86,3 +86,9 @@ Now, utilize the available connector operations.
 ```bash
 bal run
 ```
+
+## Examples
+
+The `Discord` connector provides practical examples illustrating usage in various scenarios. Explore these [examples](https://github.com/ballerina-platform/module-ballerinax-discord/tree/main/examples/), covering the following use cases:
+
+1. [Automated Event Reminders](https://github.com/ballerina-platform/module-ballerinax-discord/tree/main/examples/automated-event-reminders)

examples/README.md

@@ -0,0 +1,51 @@
+# Examples
+
+The `ballerinax/discord` connector provides practical examples illustrating usage in various scenarios. Explore the below examples, covering use cases like automated event announcements and automated role assignment based on reactions.
+
+1. [Automated Event Reminders](/examples/automated-event-reminders/Discord%20automated%20event%20reminders.md)
+
+## Prerequisites
+
+1. Generate Discord credentials to authenticate the connector as described in the [Setup guide](https://central.ballerina.io/ballerinax/discord/latest#setup-guide).
+
+2. For each example, create a `Config.toml` file the related configuration. Here's an example of how your `Config.toml` file should look:
+
+    ```toml
+    clientId="<client_id>"
+    clientSecret="<client_secret>"
+    scopes=["<scope1>", "<scope2>"]
+    ```
+
+## Running an Example
+
+Execute the following commands to build an example from the source:
+
+* To build an example:
+
+    ```bash
+    bal build
+    ```
+
+* To run an example:
+
+    ```bash
+    bal run
+    ```
+
+## Building the Examples with the Local Module
+
+**Warning**: Due to the absence of support for reading local repositories for single Ballerina files, the Bala of the module is manually written to the central repository as a workaround. Consequently, the bash script may modify your local Ballerina repositories.
+
+Execute the following commands to build all the examples against the changes you have made to the module locally:
+
+* To build all the examples:
+
+    ```bash
+    ./build.sh build
+    ```
+
+* To run all the examples:
+
+    ```bash
+    ./build.sh run
+    ```

examples/automated-event-reminders/.github/README.md

@@ -0,0 +1 @@
+../Discord automated event reminders.md

examples/automated-event-reminders/Ballerina.toml

@@ -0,0 +1,5 @@
+[package]
+org = "wso2"
+name = "discord_automated_event_reminders"
+version = "0.1.0"
+distribution = "2201.9.1"

examples/automated-event-reminders/Discord automated event reminders.md

@@ -0,0 +1,27 @@
+# Discord automated event reminders
+
+This example demonstrates how to automate event announcements and reminders in a Discord server using the Ballerina Discord connector.
+
+## Prerequisites
+
+### 1. Setup Discord account
+
+Refer to the [Setup guide](https://central.ballerina.io/ballerinax/discord/latest#setup-guide) to set up your Discord account, if you do not have one.
+
+### 2. Configuration
+
+Create a `Config.toml` file in the example root directory and update your Discord account related configurations as follows:
+
+```toml
+clientId = "<YOUR_CLIENT_ID>"
+clientSecret = "<YOUR_CLIENT_SECRET>"
+scopes = ["<YOUR>", "<REQUIRED>", "<SCOPES>"]
+```
+
+## Run the example
+
+Execute the following command to run the example:
+
+```ballerina
+bal run
+```

examples/automated-event-reminders/main.bal

@@ -0,0 +1,112 @@
+// Copyright (c) 2024 WSO2 LLC. (http://www.wso2.com).
+//
+// WSO2 LLC. licenses this file to you under the Apache License,
+// Version 2.0 (the "License"); you may not use this file except
+// in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+import ballerina/log;
+import ballerina/task;
+import ballerinax/discord;
+
+configurable string clientId = ?;
+configurable string clientSecret = ?;
+configurable string[] scopes = ?;
+
+string guildId = "YOUR_GUILD_ID";
+
+# Represents a Discord Channel.
+public type Channel record {
+    # ID of the channel
+    string id;
+};
+
+# Represents a Discord Event.
+public type Event record {
+    # ID of the event
+    string id;
+    # Name of the event
+    string name;
+};
+
+discord:ConnectionConfig discordConfig = {
+    auth: {
+        clientId,
+        clientSecret,
+        scopes
+    }
+};
+
+discord:Client discord = check new (discordConfig);
+
+public function main() returns error? {
+    // Registers the scheduled event.
+    discord:guild_id_scheduledevents_body payload = {
+        name: "Community Meeting",
+        description: "Join us for our monthly community meeting!",
+        scheduled_start_time: "2024-12-31T23:59:59Z",
+        scheduled_end_time: "2024-12-31T23:59:59Z",
+        privacy_level: 2,
+        entity_type: 1,
+        entity_metadata: {
+            location: "Virtual"
+        }
+    };
+
+    Event|error eventResponse = discord->/guilds/[guildId]/scheduled\-events.post(payload);
+    if eventResponse is error {
+        log:printError("Error creating the scheduled event: ", eventResponse);
+        return;
+    }
+
+    // Schedules the daily recurring task to send the event reminders to all the related channels.
+    task:JobId _ = check task:scheduleJobRecurByFrequency(new EventReminderJob(eventResponse.id), 60 * 60 * 24);
+}
+
+# A Ballerina scheduled job that sends a given event reminder message to a list of Discord channels.
+class EventReminderJob {
+    *task:Job;
+
+    private final string eventName;
+
+    public function init(string eventName) {
+        self.eventName = eventName;
+    }
+
+    public function execute() {
+        anydata[]|error channelsResponse = discord->/guilds/[guildId]/channels();
+        if channelsResponse is error {
+            log:printError("Error getting the channels: ", channelsResponse);
+            return;
+        }
+
+        Channel[]|error channelsResult = channelsResponse.ensureType();
+        if channelsResult is error {
+            log:printError("Error getting the channels: ", channelsResult);
+            return;
+        }
+
+        foreach Channel channel in channelsResult {
+            any|error reminderResponse = discord->/channels/[channel.id]/messages.post({
+                    Content\-Type: "application/x-www-form-urlencoded"
+                },
+                {
+                    content: string `⏰ Reminder: Our community meeting '${self.eventName}' is coming up soon! Don't forget to join us.`
+                }
+            );
+            if reminderResponse is error {
+                log:printError("Error sending the reminder message: ", reminderResponse);
+                return;
+            }
+        }
+    }
+}

examples/build.gradle

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2024, WSO2 LLC. (http://www.wso2.com).
+ *
+ * WSO2 LLC. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import org.apache.tools.ant.taskdefs.condition.Os
+
+apply plugin: 'java'
+
+def graalvmFlag = ""
+
+task testExamples {
+    if (project.hasProperty("balGraalVMTest")) {
+        graalvmFlag = "--graalvm"
+    }
+    doLast {
+        try {
+            exec {
+                workingDir project.projectDir
+                println("Working dir: ${workingDir}")
+                if (Os.isFamily(Os.FAMILY_WINDOWS)) {
+                    commandLine 'cmd', "/c", "chmod +x ./build.sh && ./build.sh run && exit %%ERRORLEVEL%%"
+                } else {
+                    commandLine 'sh', "-c", "chmod +x ./build.sh && ./build.sh run"
+                }
+            }
+        } catch (Exception e) {
+            println("Example Build failed: " + e.message)
+            throw e
+        }
+    }
+}
+
+task buildExamples {
+    gradle.taskGraph.whenReady { graph ->
+        if (graph.hasTask(":discord-examples:test")) {
+            buildExamples.enabled = false
+        } else {
+            testExamples.enabled = false
+        }
+    }
+    doLast {
+        try {
+            exec {
+                workingDir project.projectDir
+                println("Working dir: ${workingDir}")
+                if (Os.isFamily(Os.FAMILY_WINDOWS)) {
+                    commandLine 'cmd', "/c", "chmod +x ./build.sh && ./build.sh build && exit %%ERRORLEVEL%%"
+                } else {
+                    commandLine 'sh', "-c", "chmod +x ./build.sh && ./build.sh build"
+                }
+            }
+        } catch (Exception e) {
+            println("Example Build failed: " + e.message)
+            throw e
+        }
+    }
+}
+
+buildExamples.dependsOn ":discord-ballerina:build"
+testExamples.dependsOn ":discord-ballerina:build"
+
+// TODO: Enable the examples build once https://github.com/ballerina-platform/ballerina-library/issues/6135 is fixed
+// test.dependsOn testExamples
+// build.dependsOn buildExamples

examples/build.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+
+BAL_EXAMPLES_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+BAL_CENTRAL_DIR="$HOME/.ballerina/repositories/central.ballerina.io"
+BAL_HOME_DIR="$BAL_EXAMPLES_DIR/../ballerina"
+
+set -e
+
+case "$1" in
+build)
+  BAL_CMD="build"
+  ;;
+run)
+  BAL_CMD="run"
+  ;;
+*)
+  echo "Invalid command provided: '$1'. Please provide 'build' or 'run' as the command."
+  exit 1
+  ;;
+esac
+
+# Read Ballerina package name
+BAL_PACKAGE_NAME=$(awk -F'"' '/^name/ {print $2}' "$BAL_HOME_DIR/Ballerina.toml")
+
+# Push the package to the local repository
+cd "$BAL_HOME_DIR" &&
+  bal pack &&
+  bal push --repository=local
+
+# Remove the cache directories in the repositories
+cacheDirs=$(ls -d $BAL_CENTRAL_DIR/cache-* 2>/dev/null) || true
+for dir in "${cacheDirs[@]}"; do
+  [ -d "$dir" ] && rm -r "$dir"
+done
+echo "Successfully cleaned the cache directories"
+
+# Create the package directory in the central repository, this will not be present if no modules are pulled
+mkdir -p "$BAL_CENTRAL_DIR/bala/ballerinax/$BAL_PACKAGE_NAME"
+
+# Update the central repository
+BAL_DESTINATION_DIR="$HOME/.ballerina/repositories/central.ballerina.io/bala/ballerinax/$BAL_PACKAGE_NAME"
+BAL_SOURCE_DIR="$HOME/.ballerina/repositories/local/bala/ballerinax/$BAL_PACKAGE_NAME"
+[ -d "$BAL_DESTINATION_DIR" ] && rm -r "$BAL_DESTINATION_DIR"
+[ -d "$BAL_SOURCE_DIR" ] && cp -r "$BAL_SOURCE_DIR" "$BAL_DESTINATION_DIR"
+echo "Successfully updated the local central repositories"
+
+echo "$BAL_DESTINATION_DIR"
+echo "$BAL_SOURCE_DIR"
+
+# Loop through examples in the examples directory
+cd "$BAL_EXAMPLES_DIR"
+for dir in $(find "$BAL_EXAMPLES_DIR" -type d -maxdepth 1  -mindepth 1); do
+  # Skip the build directory
+  if [[ "$dir" == *build ]]; then
+    continue
+  fi
+  (cd "$dir" && bal "$BAL_CMD" --offline && cd ..);
+done
+
+# Remove generated JAR files
+find "$BAL_HOME_DIR" -maxdepth 1 -type f -name "*.jar" | while read -r JAR_FILE; do
+  rm "$JAR_FILE"
+done