//! Saved state: old formats migrate to the current one (with a backup of the original), damaged files and entries
//! never take the rest down, missing folders are reported as such, Reset keeps a backup, and the logs stay clean.
use serde_json::{json, Value};
use storebound_desktop::commands::project_view;
use storebound_desktop::logs;
use storebound_desktop::store::{self, State, VERSION};
use storebound_desktop::workspace::{Overrides, Settings};

const D1: &str = include_str!("../../tests/fixtures/state/d1-missing-folders.json");
const D3: &str = include_str!("../../tests/fixtures/state/d3-full.json");
const EMPTY: &str = include_str!("../../tests/fixtures/state/empty.json");

fn write(dir: &std::path::Path, text: &str) {
    std::fs::write(dir.join(store::FILE), text).unwrap();
}

#[test]
fn d1_state_with_missing_folders_migrates_to_the_current_format() {
    let (st, from, notes) = store::migrate(serde_json::from_str(D1).unwrap());
    assert_eq!((from, st.version), (1, VERSION));
    assert!(notes.is_empty(), "{notes:?}");
    assert_eq!(st.projects.len(), 2);
    assert_eq!(st.projects[0].name, "Prism Puddle");
    assert!(st.accounts.is_empty() && st.studios.is_empty());
    assert_eq!((st.overrides.clone(), st.settings.clone()), (Overrides::default(), Settings::default()));
    // the folders are gone: the window gets `missing: true` for each, nothing fails
    for p in &st.projects {
        let v = serde_json::to_value(project_view(p)).unwrap();
        assert_eq!(v["missing"], true);
        assert_eq!(v["path"], p.path.as_str());
        assert!(v.get("playAccount").is_some(), "camelCase, flattened");
    }

    // on disk: migrated once, the original kept as state.json.v1.bak, the new file carries the version
    let dir = tempfile::tempdir().unwrap();
    write(dir.path(), D1);
    let (loaded, report) = store::load_report(dir.path());
    assert_eq!(loaded, st);
    assert_eq!(report.migrated_from, Some(1));
    let bak = dir.path().join("state.json.v1.bak");
    assert_eq!(report.backup.as_deref(), Some(bak.as_path()));
    assert_eq!(std::fs::read_to_string(&bak).unwrap(), D1);
    let saved: Value = serde_json::from_str(&std::fs::read_to_string(dir.path().join(store::FILE)).unwrap()).unwrap();
    assert_eq!(saved["version"], VERSION);
    assert_eq!(saved["settings"]["cache"]["keepDays"], 30);
    let (again, report) = store::load_report(dir.path());
    assert_eq!(again, st);
    assert_eq!(report.migrated_from, None, "migrates only once");
}

#[test]
fn d3_state_without_version_keeps_everything() {
    let (st, from, notes) = store::migrate(serde_json::from_str(D3).unwrap());
    assert_eq!(from, 1);
    assert!(notes.is_empty(), "{notes:?}");
    assert_eq!((st.projects.len(), st.accounts.len(), st.studios.len()), (2, 3, 2));
    assert_eq!(st.accounts[0].studio.as_deref(), Some("s1"));
    assert_eq!(st.accounts[2].studio, None);
    assert_eq!(st.studios[1].logo, None);
    assert_eq!(st.overrides.ignored, vec!["account:00112233445566ff".to_string()]);
    assert_eq!(st.overrides.app_studio[0].studio, "s2");
}

#[test]
fn empty_and_missing_files_start_empty() {
    let (st, from, _) = store::migrate(serde_json::from_str(EMPTY).unwrap());
    assert_eq!(from, 1);
    assert_eq!(st, State::default());
    let dir = tempfile::tempdir().unwrap();
    assert_eq!(store::load_report(dir.path()), (State::default(), store::LoadReport::default()));
    assert!(!dir.path().join(store::FILE).exists(), "nothing written for a fresh install");
}

#[test]
fn partial_settings_keep_what_is_there() {
    let (st, from, notes) = store::migrate(json!({ "version": 2, "settings": { "refresh": { "autoMinutes": 15 }, "channel": "beta" } }));
    assert_eq!(from, 2);
    assert!(notes.is_empty(), "{notes:?}");
    assert_eq!((st.settings.refresh.auto_minutes, st.settings.refresh.parallel, st.settings.cache.keep_days, st.settings.channel.as_str()), (15, 4, 30, "beta"));
    assert!(st.settings.notify.crash);
}

#[test]
fn bad_entries_are_dropped_one_by_one() {
    let (st, _, notes) = store::migrate(json!({
        "projects": [
            { "id": "a", "path": "/x/a", "name": "A", "added": "2026-10-01T00:00:00Z" },
            { "id": 7 },
            { "id": "b", "path": "/x/Beta" },
            { "id": "a", "path": "/x/dup", "name": "Dup" }
        ],
        "accounts": [{ "id": "0123456789abcdef", "label": "P", "kind": "play", "created": "2026-10-01T00:00:00Z" }, { "kind": "windows-phone" }],
        "studios": "not a list",
        "overrides": { "ignored": "nope" },
        "settings": null
    }));
    assert_eq!(st.projects.iter().map(|p| p.name.as_str()).collect::<Vec<_>>(), vec!["A", "Beta"], "no name: the folder name; duplicate id: first wins");
    assert_eq!(st.accounts.len(), 1);
    assert!(st.studios.is_empty());
    assert_eq!(st.overrides, Overrides::default());
    assert_eq!(st.settings, Settings::default());
    assert_eq!(notes.len(), 3, "{notes:?}");
    assert!(notes[0].starts_with("projects[1] dropped"));
}

#[test]
fn unreadable_files_are_kept_aside_and_newer_formats_read() {
    let dir = tempfile::tempdir().unwrap();
    write(dir.path(), "{broken");
    let (st, report) = store::load_report(dir.path());
    assert_eq!(st, State::default());
    let bak = report.backup.expect("a copy of the unreadable file");
    assert!(bak.file_name().unwrap().to_string_lossy().starts_with("state.json.unreadable-"));
    assert_eq!(std::fs::read_to_string(bak).unwrap(), "{broken");
    write(dir.path(), "[1,2]");
    assert_eq!(store::load(dir.path()), State::default());

    let (st, from, _) = store::migrate(json!({ "version": 99, "projects": [{ "id": "a", "path": "/x", "name": "A", "added": "" }], "future": true }));
    assert_eq!((from, st.version, st.projects.len()), (99, 99, 1));
    let dir = tempfile::tempdir().unwrap();
    write(dir.path(), &json!({ "version": 99 }).to_string());
    let (_, report) = store::load_report(dir.path());
    assert!(report.notes[0].contains("newer"), "{:?}", report.notes);
    assert_eq!(report.migrated_from, None);
}

#[test]
fn reset_moves_the_file_aside() {
    let dir = tempfile::tempdir().unwrap();
    assert_eq!(store::reset(dir.path()).unwrap(), None);
    write(dir.path(), D1);
    let bak = store::reset(dir.path()).unwrap().unwrap();
    assert!(bak.file_name().unwrap().to_string_lossy().starts_with("state.json.reset-"));
    assert_eq!(std::fs::read_to_string(bak).unwrap(), D1);
    assert!(!dir.path().join(store::FILE).exists());
    assert_eq!(store::load(dir.path()), State::default());
}

#[test]
fn saved_files_always_carry_the_version() {
    let dir = tempfile::tempdir().unwrap();
    store::save(dir.path(), &State { version: 0, ..State::default() }).unwrap();
    let v: Value = serde_json::from_str(&std::fs::read_to_string(dir.path().join(store::FILE)).unwrap()).unwrap();
    assert_eq!(v["version"], VERSION);
}

#[test]
fn logs_hide_home_keys_tokens_and_emails() {
    let home = Some("/Users/example");
    let s = logs::sanitize("TypeError at /Users/example/Library/x.js:1\n\tat f", home);
    assert_eq!(s, "TypeError at ~/Library/x.js:1\n\tat f");
    let pem = "key: -----BEGIN PRIVATE KEY-----\nMIGTAgEAMBMGByqGSM49\n-----END PRIVATE KEY----- done";
    assert_eq!(logs::sanitize(pem, None), "key: [redacted key] done");
    let s = logs::sanitize(r#"{"password": "hunter22", "token":"abc.def", "name":"ok"} Authorization: Bearer xyz123 url?api_key=K1&x=1"#, None);
    assert!(!s.contains("hunter22") && !s.contains("abc.def") && !s.contains("xyz123") && !s.contains("K1&"), "{s}");
    assert!(s.contains(r#""name":"ok""#), "{s}");
    let s = logs::sanitize("tester person@example.com saw eyJhbGciOiJFUzI1NiJ9abcdef1234567890ABCDEF and 0123456789abcdef0123456789abcdef01", None);
    assert!(!s.contains("person@example.com") && !s.contains("eyJhbGci") && !s.contains("0123456789abcdef0123"), "{s}");
    assert!(s.contains("[email]"));
    // ordinary paths, file names and error text stay readable
    let ok = "at qg (tauri://localhost/assets/index-DXUigr_F.js:49:175893) Cannot read properties of undefined (reading 'map')";
    assert_eq!(logs::sanitize(ok, home), ok);
    assert_eq!(logs::sanitize("a\u{7}b\u{1b}[31m", None), "ab[31m");
}

#[test]
fn log_entries_are_one_block_and_rotate() {
    let e = logs::entry("2026-10-11T00:00:00Z", "webview", "error", "boom\nat f\n");
    assert_eq!(e, "2026-10-11T00:00:00Z error [webview] boom\n    at f\n");
    let long = "x".repeat(logs::MAX_ENTRY + 10);
    assert!(logs::entry("t", "host", "info", &long).ends_with(" [cut]\n"));
    let dir = tempfile::tempdir().unwrap();
    std::fs::write(dir.path().join("host.log"), vec![b'a'; logs::MAX_BYTES as usize]).unwrap();
    logs::append(dir.path(), "host.log", "new\n").unwrap();
    assert_eq!(std::fs::read_to_string(dir.path().join("host.log")).unwrap(), "new\n");
    assert_eq!(std::fs::metadata(dir.path().join("host.1.log")).unwrap().len(), logs::MAX_BYTES);
}

/// What the host answers for each fixture (projects_list without `missing`, accounts_list, workspace_get), written
/// next to it as `<name>.host.json`. tools/desktop-boot-check.ts boots the built window on exactly these answers.
/// After a change to the state format: STOREBOUND_UPDATE_FIXTURES=1 cargo test --test state
#[test]
fn host_answers_for_the_fixtures_are_current() {
    let dir = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("../tests/fixtures/state");
    for (name, text) in [("empty", EMPTY), ("d1-missing-folders", D1), ("d3-full", D3)] {
        let (st, _, notes) = store::migrate(serde_json::from_str(text).unwrap());
        assert!(notes.is_empty(), "{name}: {notes:?}");
        let host = json!({
            "projects_list": st.projects,
            "accounts_list": st.accounts,
            "workspace_get": { "studios": st.studios, "overrides": st.overrides, "settings": st.settings },
        });
        let want = format!("{}\n", serde_json::to_string_pretty(&host).unwrap());
        let file = dir.join(format!("{name}.host.json"));
        if std::env::var_os("STOREBOUND_UPDATE_FIXTURES").is_some() {
            std::fs::write(&file, &want).unwrap();
        }
        let have = std::fs::read_to_string(&file).unwrap_or_default();
        assert!(have == want, "{} is stale: STOREBOUND_UPDATE_FIXTURES=1 cargo test --test state", file.display());
    }
}