//! The calendar through the CLI: `run <id> <json>` gives the engine's answer.

mod common;

use common::{empty_vault, exists, note, read_file, run};
use notescraft_engine::{Registry, Session, register_core};
use serde_json::{Value, json};

fn vault(name: &str) -> std::path::PathBuf {
    let root = empty_vault(name);
    note(&root, "Calendar/lunch.md", "---\ntitle: Lunch\nstart: 2026-10-20T12:00\nend: 2026-10-20T13:00\n---\n");
    note(&root, "Calendar/clash.md", "---\ntitle: Dentist\nstart: 2026-10-20T12:30\nend: 2026-10-20T13:30\n---\n");
    note(&root, "Calendar/standup.md", "---\ntitle: Standup\nstart: 2026-10-19T09:30\nrepeat: weekly\n---\n");
    root
}

fn engine(root: &std::path::Path, id: &str, params: &Value) -> Value {
    let mut registry = Registry::new();
    register_core(&mut registry).expect("register");
    let mut session = Session::open_read_only(root).expect("open");
    registry.run(id, &mut session, params).expect("engine run")
}

#[test]
fn reads_match_the_engine_with_json() {
    let root = vault("cal-cli-read");
    for (id, params) in [
        ("calendar.agenda", json!({ "from": "2026-10-19", "to": "2026-11-02", "group": "day" })),
        ("calendar.free", json!({ "day": "2026-10-20", "min_minutes": 15 })),
        ("calendar.conflicts", json!({ "from": "2026-10-19", "to": "2026-10-25" })),
        ("calendar.year", json!({ "year": 2026 })),
    ] {
        let out = run(&root, &["--json", "run", id, &params.to_string()]);
        assert_eq!(out.code, 0, "{id}: {}", out.stderr);
        assert_eq!(out.result(), engine(&root, id, &params), "{id}");
    }
}

#[test]
fn writes_work_and_a_repeating_event_needs_a_scope() {
    let root = vault("cal-cli-write");
    let added = run(&root, &["--json", "run", "calendar.add", &json!({ "text": "Gym 2026-11-03 at 7:00 for 1h" }).to_string()]);
    assert_eq!(added.code, 0, "{}", added.stderr);
    assert!(exists(&root, "Calendar/2026-11-03-gym.md"));

    let missing = run(&root, &["--json", "run", "calendar.edit", &json!({ "id": "Calendar/standup.md", "fields": { "title": "x" } }).to_string()]);
    assert_eq!(missing.code, 1);
    assert_eq!(missing.error_code(), "command_failed");
    assert!(missing.stdout.contains("this, following or all"), "{}", missing.stdout);
    assert!(read_file(&root, "Calendar/standup.md").contains("title: Standup"), "nothing changed");

    let scoped =
        run(&root, &["--json", "run", "calendar.edit", &json!({ "id": "Calendar/standup.md", "scope": "all", "fields": { "title": "Sync" } }).to_string()]);
    assert_eq!(scoped.code, 0, "{}", scoped.stderr);
    assert!(read_file(&root, "Calendar/standup.md").contains("title: Sync"));
}