//! Integration tests for the `argv` command.

use assert_cmd::Command;
use predicates::prelude::*;

fn cargo_command() -> Command {
    Command::cargo_bin("argv").expect("binary")
}

#[test]
fn no_args_prints_quick_help_card() {
    let mut command = cargo_command();
    command
        .assert()
        .code(2)
        .stdout(predicate::str::is_empty())
        .stderr(predicate::str::contains(
            "error: provide a subcommand: quote or inspect",
        ))
        .stderr(predicate::str::contains("argv - Mercury Toolbox"))
        .stderr(predicate::str::contains("Usage:"))
        .stderr(predicate::str::contains("argv quote"))
        .stderr(predicate::str::contains("argv inspect"))
        .stderr(predicate::str::contains(
            "Type 'argv --help' for the full command reference.",
        ));
}

#[test]
fn help_mentions_quote_inspect_and_platform_boundaries() {
    let mut command = cargo_command();
    command
        .arg("--help")
        .assert()
        .success()
        .stdout(predicate::str::contains("argv quote"))
        .stdout(predicate::str::contains("argv inspect"))
        .stdout(predicate::str::contains("Windows-first"))
        .stdout(predicate::str::contains("cmd inspect is Windows-only"));
}

#[test]
fn subcommand_help_mentions_common_output_flags() {
    for subcommand in ["quote", "inspect"] {
        let mut command = cargo_command();
        command
            .args([subcommand, "--help"])
            .assert()
            .success()
            .stdout(predicate::str::contains("--format <FORMAT>"))
            .stdout(predicate::str::contains("--json"))
            .stdout(predicate::str::contains("--toon"))
            .stdout(predicate::str::contains("--color <WHEN>"))
            .stdout(predicate::str::contains("--quiet"))
            .stdout(predicate::str::contains("--shell <SHELL>"));
    }
}

#[test]
fn quote_accepts_json_array_from_stdin() {
    let mut command = cargo_command();
    command
        .arg("quote")
        .arg("--shell")
        .arg("pwsh")
        .write_stdin("[\"tool\",\"two words\"]")
        .assert()
        .success()
        .stdout(predicate::str::contains("& 'tool' 'two words'"));
}

#[cfg(windows)]
#[test]
fn quote_renders_cmd_safe_text_for_positional_args() {
    let mut command = cargo_command();
    command
        .arg("quote")
        .arg("--shell")
        .arg("cmd")
        .arg("--")
        .arg("tool.exe")
        .arg("two words")
        .assert()
        .success()
        .stdout(predicate::str::contains("tool.exe"))
        .stdout(predicate::str::contains("\"two words\""));
}

#[cfg(windows)]
#[test]
fn quote_cmd_wraps_metacharacters_for_cmd_shell() {
    let mut command = cargo_command();
    command
        .arg("quote")
        .arg("--shell")
        .arg("cmd")
        .arg("--")
        .arg("tool.exe")
        .arg("a&b")
        .assert()
        .success()
        .stdout(predicate::str::contains("tool.exe"))
        .stdout(predicate::str::contains("\"a&b\""));
}

#[cfg(windows)]
#[test]
fn inspect_round_trips_through_powershell_helper() {
    let mut command = cargo_command();
    command
        .arg("inspect")
        .arg("--json")
        .arg("--shell")
        .arg("pwsh")
        .arg("--")
        .arg("alpha")
        .arg("two words")
        .assert()
        .success()
        .stdout(predicate::str::contains("\"shell\":\"pwsh\""))
        .stdout(predicate::str::contains(
            "\"argv\":[\"alpha\",\"two words\"]",
        ))
        .stdout(predicate::str::contains("\"count\":2"));
}

#[cfg(windows)]
#[test]
fn inspect_round_trips_positional_values_that_look_like_options() {
    let mut command = cargo_command();
    command
        .arg("inspect")
        .arg("--json")
        .arg("--shell")
        .arg("pwsh")
        .arg("--")
        .arg("alpha")
        .arg("--filter=x|y")
        .assert()
        .success()
        .stdout(predicate::str::contains(
            "\"argv\":[\"alpha\",\"--filter=x|y\"]",
        ))
        .stdout(predicate::str::contains("\"count\":2"));
}

#[cfg(windows)]
#[test]
fn inspect_round_trips_through_cmd_helper() {
    let mut command = cargo_command();
    command
        .arg("inspect")
        .arg("--json")
        .arg("--shell")
        .arg("cmd")
        .arg("--")
        .arg("alpha")
        .arg("two words")
        .assert()
        .success()
        .stdout(predicate::str::contains("\"shell\":\"cmd\""))
        .stdout(predicate::str::contains(
            "\"argv\":[\"alpha\",\"two words\"]",
        ))
        .stdout(predicate::str::contains("\"count\":2"));
}

#[cfg(windows)]
#[test]
fn inspect_round_trips_cmd_caret_literals() {
    let mut command = cargo_command();
    command
        .arg("inspect")
        .arg("--json")
        .arg("--shell")
        .arg("cmd")
        .arg("--")
        .arg("--flag")
        .arg("literal^caret")
        .assert()
        .success()
        .stdout(predicate::str::contains(
            "\"argv\":[\"--flag\",\"literal^caret\"]",
        ));
}

#[test]
fn inspect_raw_uses_helper_without_shell() {
    let mut command = cargo_command();
    command
        .arg("inspect")
        .arg("--json")
        .arg("--shell")
        .arg("raw")
        .arg("--")
        .arg("alpha")
        .arg("two words")
        .assert()
        .success()
        .stdout(predicate::str::contains("\"shell\":\"raw\""))
        .stdout(predicate::str::contains(
            "\"argv\":[\"alpha\",\"two words\"]",
        ));
}

#[test]
fn inspect_text_accepts_json_array_from_stdin() {
    let mut command = cargo_command();
    command
        .arg("inspect")
        .arg("--shell")
        .arg("raw")
        .write_stdin("[\"alpha\",\"two words\"]")
        .assert()
        .success()
        .stdout(predicate::str::contains("shell=raw count=2"))
        .stdout(predicate::str::contains("argv[1]=\"two words\""));
}

#[test]
fn quote_rejects_invalid_stdin_json() {
    let mut command = cargo_command();
    command
        .arg("quote")
        .arg("--shell")
        .arg("raw")
        .write_stdin("{\"argv\":[\"alpha\"]}")
        .assert()
        .code(2)
        .stderr(predicate::str::contains(
            "expected a JSON array of strings on stdin",
        ));
}