refactor a ton of the admin room code (50% done)

Signed-off-by: strawberry <strawberry@puppygock.gay>

src/service/admin/appservice/appservice_command.rs

@@ -0,0 +1,66 @@
+use ruma::{api::appservice::Registration, events::room::message::RoomMessageEventContent};
+
+use crate::{service::admin::escape_html, services, Result};
+
+pub(super) async fn register(body: Vec<&str>) -> Result<RoomMessageEventContent> {
+	if body.len() > 2 && body[0].trim().starts_with("```") && body.last().unwrap().trim() == "```" {
+		let appservice_config = body[1..body.len() - 1].join("\n");
+		let parsed_config = serde_yaml::from_str::<Registration>(&appservice_config);
+		match parsed_config {
+			Ok(yaml) => match services().appservice.register_appservice(yaml).await {
+				Ok(id) => Ok(RoomMessageEventContent::text_plain(format!(
+					"Appservice registered with ID: {id}."
+				))),
+				Err(e) => Ok(RoomMessageEventContent::text_plain(format!(
+					"Failed to register appservice: {e}"
+				))),
+			},
+			Err(e) => Ok(RoomMessageEventContent::text_plain(format!(
+				"Could not parse appservice config: {e}"
+			))),
+		}
+	} else {
+		Ok(RoomMessageEventContent::text_plain(
+			"Expected code block in command body. Add --help for details.",
+		))
+	}
+}
+
+pub(super) async fn unregister(_body: Vec<&str>, appservice_identifier: String) -> Result<RoomMessageEventContent> {
+	match services()
+		.appservice
+		.unregister_appservice(&appservice_identifier)
+		.await
+	{
+		Ok(()) => Ok(RoomMessageEventContent::text_plain("Appservice unregistered.")),
+		Err(e) => Ok(RoomMessageEventContent::text_plain(format!(
+			"Failed to unregister appservice: {e}"
+		))),
+	}
+}
+
+pub(super) async fn show(_body: Vec<&str>, appservice_identifier: String) -> Result<RoomMessageEventContent> {
+	match services()
+		.appservice
+		.get_registration(&appservice_identifier)
+		.await
+	{
+		Some(config) => {
+			let config_str = serde_yaml::to_string(&config).expect("config should've been validated on register");
+			let output = format!("Config for {}:\n\n```yaml\n{}\n```", appservice_identifier, config_str,);
+			let output_html = format!(
+				"Config for {}:\n\n<pre><code class=\"language-yaml\">{}</code></pre>",
+				escape_html(&appservice_identifier),
+				escape_html(&config_str),
+			);
+			Ok(RoomMessageEventContent::text_html(output, output_html))
+		},
+		None => Ok(RoomMessageEventContent::text_plain("Appservice does not exist.")),
+	}
+}
+
+pub(super) async fn list(_body: Vec<&str>) -> Result<RoomMessageEventContent> {
+	let appservices = services().appservice.iter_ids().await;
+	let output = format!("Appservices ({}): {}", appservices.len(), appservices.join(", "));
+	Ok(RoomMessageEventContent::text_plain(output))
+}