Add helpdoc list command

1 files changed, 48 insertions, 0 deletions

diff --git a/src/cmds/cmd/helpdoc_list.rs b/src/cmds/cmd/helpdoc_list.rs
new file mode 100644
index 0000000..b4b05cf
--- /dev/null
+++ b/src/cmds/cmd/helpdoc_list.rs
@@ -0,0 +1,48 @@
+use crate::{
+    cmd_output,
+    cmds::{
+        arg::empty::JVEmptyArgument, collect::empty::JVEmptyCollect, r#in::empty::JVEmptyInput,
+        out::helpdocs::JVHelpdocsOutput,
+    },
+    systems::{
+        cmd::{
+            cmd_system::JVCommandContext,
+            errors::{CmdExecuteError, CmdPrepareError},
+        },
+        helpdoc::{DEFAULT_HELPDOC, get_helpdoc_list, helpdoc_viewer},
+    },
+};
+use cmd_system_macros::exec;
+use std::any::TypeId;
+
+pub struct JVHelpdocListCommand;
+type Cmd = JVHelpdocListCommand;
+type Arg = JVEmptyArgument;
+type In = JVEmptyInput;
+type Collect = JVEmptyCollect;
+
+async fn help_str() -> String {
+    helpdoc_viewer::display(DEFAULT_HELPDOC).await;
+    String::new()
+}
+
+async fn prepare(_args: &Arg, _ctx: &JVCommandContext) -> Result<In, CmdPrepareError> {
+    Ok(JVEmptyInput)
+}
+
+async fn collect(_args: &Arg, _ctx: &JVCommandContext) -> Result<Collect, CmdPrepareError> {
+    Ok(JVEmptyCollect)
+}
+
+#[exec]
+async fn exec(
+    _input: In,
+    _collect: Collect,
+) -> Result<(Box<dyn std::any::Any + Send + 'static>, TypeId), CmdExecuteError> {
+    let output = JVHelpdocsOutput {
+        names: get_helpdoc_list().into_iter().map(String::from).collect(),
+    };
+    cmd_output!(JVHelpdocsOutput => output)
+}
+
+crate::command_template!();