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//! ref: composer/vendor/symfony/console/Command/HelpCommand.php
use crate::symfony::console::command::command::{Command, CommandData, SetDefinitionArg};
use crate::symfony::console::completion::completion_input::CompletionInput;
use crate::symfony::console::completion::completion_suggestions::{
CompletionSuggestions, StringOrSuggestion,
};
use crate::symfony::console::descriptor::application_description::ApplicationDescription;
use crate::symfony::console::helper::descriptor_helper::DescriptorHelper;
use crate::symfony::console::input::input_argument::InputArgument;
use crate::symfony::console::input::input_definition::DefinitionItem;
use crate::symfony::console::input::input_interface::InputInterface;
use crate::symfony::console::input::input_option::InputOption;
use crate::symfony::console::output::output_interface::OutputInterface;
use shirabe_php_shim::PhpMixed;
use std::cell::RefCell;
use std::ops::{Deref, DerefMut};
use std::rc::Rc;
/// HelpCommand displays the help for a given command.
#[derive(Debug)]
pub struct HelpCommand {
inner: CommandData,
command: Option<Rc<RefCell<dyn Command>>>,
}
impl Deref for HelpCommand {
type Target = CommandData;
fn deref(&self) -> &Self::Target {
&self.inner
}
}
impl DerefMut for HelpCommand {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.inner
}
}
impl HelpCommand {
pub fn new() -> Self {
let mut command = HelpCommand {
inner: CommandData::new(None),
command: None,
};
command
.configure()
.expect("HelpCommand::configure uses static, valid metadata");
command
}
pub fn set_command(&mut self, command: Rc<RefCell<dyn Command>>) {
self.command = Some(command);
}
pub fn complete_impl(&self, input: &CompletionInput, suggestions: &mut CompletionSuggestions) {
if input.must_suggest_argument_values_for("command_name") {
let application = self.get_application().unwrap();
let mut descriptor = ApplicationDescription::new(application, None, false);
suggestions.suggest_values(
descriptor
.get_commands()
.keys()
.cloned()
.map(StringOrSuggestion::String)
.collect(),
);
return;
}
if input.must_suggest_option_values_for("format") {
let helper = DescriptorHelper::new();
suggestions.suggest_values(
helper
.get_formats()
.into_iter()
.map(StringOrSuggestion::String)
.collect(),
);
}
}
}
impl Command for HelpCommand {
fn configure(&mut self) -> anyhow::Result<()> {
self.inner.ignore_validation_errors();
self.inner.set_name("help")?;
self.inner.set_definition(SetDefinitionArg::Array(vec![
DefinitionItem::InputArgument(InputArgument::new(
"command_name".to_string(),
Some(InputArgument::OPTIONAL),
"The command name".to_string(),
PhpMixed::from("help".to_string()),
)?),
DefinitionItem::InputOption(InputOption::new(
"format",
PhpMixed::Null,
Some(InputOption::VALUE_REQUIRED),
"The output format (txt, xml, json, or md)".to_string(),
PhpMixed::from("txt".to_string()),
)?),
DefinitionItem::InputOption(InputOption::new(
"raw",
PhpMixed::Null,
Some(InputOption::VALUE_NONE),
"To output raw command help".to_string(),
PhpMixed::Null,
)?),
]));
self.inner.set_description("Display help for a command");
self.inner.set_help(
"The <info>%command.name%</info> command displays help for a given command:\n\
\n\
\x20\x20<info>%command.full_name% list</info>\n\
\n\
You can also output the help in other formats by using the <comment>--format</comment> option:\n\
\n\
\x20\x20<info>%command.full_name% --format=xml list</info>\n\
\n\
To display the list of available commands, please use the <info>list</info> command.",
);
Ok(())
}
fn execute(
&mut self,
input: Rc<RefCell<dyn InputInterface>>,
output: Rc<RefCell<dyn OutputInterface>>,
) -> anyhow::Result<i64> {
if self.command.is_none() {
let application = self.get_application().unwrap();
let command_name = input.borrow().get_argument("command_name")?.to_string();
self.command = Some(application.borrow_mut().find(&command_name)?);
}
let helper = DescriptorHelper::new();
// TODO: DescriptorHelper::describe2 takes the described object as Option<PhpMixed>,
// but PhpMixed cannot hold a Command. The Command/Application object mixing for
// describe needs a dedicated type (Phase C).
let object: Option<PhpMixed> = todo!();
let mut options = indexmap::IndexMap::new();
options.insert("format".to_string(), input.borrow().get_option("format")?);
options.insert("raw_text".to_string(), input.borrow().get_option("raw")?);
let _ = helper.describe2(&mut *output.borrow_mut(), object, options);
self.command = None;
Ok(0)
}
fn complete(&self, input: &CompletionInput, suggestions: &mut CompletionSuggestions) {
self.complete_impl(input, suggestions);
}
crate::delegate_command_trait_impls_to_inner!(inner);
}
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