//! `pic apply` journey: apply a manifest to an empty app (atomic create),
//! re-apply is an idempotent no-op, and a bundle containing any invalid
//! resource applies nothing (all-or-nothing).

use std::fs;

use tempfile::TempDir;

use crate::common;
use crate::common::cleanup::AppGuard;

fn manifest_dir() -> TempDir {
    let dir = TempDir::new().expect("tempdir");
    fs::create_dir_all(dir.path().join("scripts")).expect("scripts dir");
    dir
}

#[ignore = "needs DATABASE_URL pointing at a running Postgres"]
#[test]
fn apply_creates_then_noop() {
    let Some(fx) = common::fixture_or_skip() else {
        return;
    };
    let env = common::admin_env(fx);
    let slug = common::unique_slug("apply");
    common::pic_as(&env)
        .args(["apps", "create", &slug])
        .assert()
        .success();
    let _guard = AppGuard::new(&env.url, &env.token, &slug);

    let dir = manifest_dir();
    fs::write(
        dir.path().join("scripts/greet.rhai"),
        "let body = #{ ok: true }; body",
    )
    .unwrap();
    let manifest = format!(
        "[app]\nslug = \"{slug}\"\nname = \"Apply Test\"\n\n\
         [[scripts]]\nname = \"greet\"\nfile = \"scripts/greet.rhai\"\n\n\
         [[routes]]\nscript = \"greet\"\nmethod = \"POST\"\n\
         host_kind = \"any\"\npath_kind = \"exact\"\npath = \"/greet\"\n\n\
         [[triggers.cron]]\nscript = \"greet\"\nschedule = \"0 0 * * * *\"\ntimezone = \"UTC\"\n"
    );
    let manifest_path = dir.path().join("picloud.toml");
    fs::write(&manifest_path, &manifest).unwrap();

    // First apply: creates script + route + trigger.
    let out = common::pic_as(&env)
        .args(["apply", "--file"])
        .arg(&manifest_path)
        .output()
        .expect("apply");
    assert!(
        out.status.success(),
        "apply failed: {}",
        String::from_utf8_lossy(&out.stderr)
    );
    let stdout = String::from_utf8(out.stdout).unwrap();
    assert!(
        stdout.contains("+1"),
        "expected creations in report:\n{stdout}"
    );

    // The resources now exist.
    let s = String::from_utf8(
        common::pic_as(&env)
            .args(["scripts", "ls", "--app", &slug])
            .output()
            .unwrap()
            .stdout,
    )
    .unwrap();
    assert!(s.contains("greet"), "script not created:\n{s}");

    // Plan is now clean (apply reached desired state).
    let p = String::from_utf8(
        common::pic_as(&env)
            .args(["plan", "--file"])
            .arg(&manifest_path)
            .output()
            .unwrap()
            .stdout,
    )
    .unwrap();
    assert!(
        !p.contains("create") && !p.contains("update"),
        "expected clean plan after apply:\n{p}"
    );

    // Re-apply: idempotent — nothing created/updated.
    let r = String::from_utf8(
        common::pic_as(&env)
            .args(["apply", "--file"])
            .arg(&manifest_path)
            .output()
            .unwrap()
            .stdout,
    )
    .unwrap();
    assert!(!r.contains("+1"), "re-apply should be a no-op:\n{r}");
}

#[ignore = "needs DATABASE_URL pointing at a running Postgres"]
#[test]
fn apply_rejects_bad_bundle_atomically() {
    let Some(fx) = common::fixture_or_skip() else {
        return;
    };
    let env = common::admin_env(fx);
    let slug = common::unique_slug("apply-atomic");
    common::pic_as(&env)
        .args(["apps", "create", &slug])
        .assert()
        .success();
    let _guard = AppGuard::new(&env.url, &env.token, &slug);

    let dir = manifest_dir();
    fs::write(dir.path().join("scripts/good.rhai"), "let x = 1; x").unwrap();
    // Invalid Rhai — fails validation, so the whole apply must abort.
    fs::write(dir.path().join("scripts/bad.rhai"), "let x = ;").unwrap();
    let manifest = format!(
        "[app]\nslug = \"{slug}\"\nname = \"Atomic Test\"\n\n\
         [[scripts]]\nname = \"good\"\nfile = \"scripts/good.rhai\"\n\n\
         [[scripts]]\nname = \"bad\"\nfile = \"scripts/bad.rhai\"\n"
    );
    let manifest_path = dir.path().join("picloud.toml");
    fs::write(&manifest_path, &manifest).unwrap();

    let out = common::pic_as(&env)
        .args(["apply", "--file"])
        .arg(&manifest_path)
        .output()
        .expect("apply");
    assert!(
        !out.status.success(),
        "apply with an invalid script should fail"
    );

    // Atomic: the valid script must NOT have been created.
    let s = String::from_utf8(
        common::pic_as(&env)
            .args(["scripts", "ls", "--app", &slug])
            .output()
            .unwrap()
            .stdout,
    )
    .unwrap();
    assert!(
        !s.contains("good"),
        "a failed apply must leave nothing behind:\n{s}"
    );
}