//! §11 tail — group TRIGGER templates, declarative authoring end to end via
//! `pic`. A group declares an event trigger template (kv) binding a group-owned
//! handler; the template persists, `pic triggers ls --group` shows it, re-apply
//! is a NoOp, and the stateful kinds (cron/queue/email) are rejected on a group.
//!
//! The live cross-subtree FIRING (a descendant app's event matches the template,
//! a sibling's does not) is pinned deterministically by the manager-core
//! integration test `tests/group_trigger_templates.rs` — driving the async
//! dispatcher from a journey is deliberately avoided here (codebase norm).

use std::fs;

use tempfile::TempDir;

use crate::common;
use crate::common::cleanup::{GroupGuard, ScriptGuard};

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

/// Id of the named script in a group (`pic scripts ls --group <g>`).
fn group_script_id(env: &common::TestEnv, group: &str, name: &str) -> String {
    let ls = common::pic_as(env)
        .args(["scripts", "ls", "--group", group])
        .output()
        .expect("scripts ls");
    let table = String::from_utf8(ls.stdout).unwrap();
    table
        .lines()
        .map(common::cells)
        .find(|c| c.get(2) == Some(&name))
        .and_then(|c| c.first().map(|s| (*s).to_string()))
        .unwrap_or_else(|| panic!("group script `{name}` not found:\n{table}"))
}

#[ignore = "needs DATABASE_URL pointing at a running Postgres"]
#[test]
fn group_kv_trigger_template_applies_and_lists() {
    let Some(fx) = common::fixture_or_skip() else {
        return;
    };
    let env = common::admin_env(fx);
    let group = common::unique_slug("gtrig-grp");

    let _g = GroupGuard::new(&env.url, &env.token, &group);
    common::pic_as(&env)
        .args(["groups", "create", &group])
        .assert()
        .success();

    // A group-owned handler script the template binds.
    let dir = manifest_dir();
    fs::write(
        dir.path().join("scripts/on-write.rhai"),
        r#"log::info("template fired"); "ok""#,
    )
    .unwrap();
    common::pic_as(&env)
        .args(["scripts", "deploy"])
        .arg(dir.path().join("scripts/on-write.rhai"))
        .args(["--group", &group, "--name", "on-write"])
        .assert()
        .success();
    let _gs = ScriptGuard::new(
        &env.url,
        &env.token,
        &group_script_id(&env, &group, "on-write"),
    );

    // The group declares a kv trigger TEMPLATE binding the handler.
    let gmanifest = format!(
        "[group]\nslug = \"{group}\"\nname = \"GTrig\"\n\n\
         [[triggers.kv]]\nscript = \"on-write\"\ncollection_glob = \"*\"\nops = [\"insert\"]\n"
    );
    let gpath = dir.path().join("group.toml");
    fs::write(&gpath, &gmanifest).unwrap();
    common::pic_as(&env)
        .args(["apply", "--file"])
        .arg(&gpath)
        .assert()
        .success();

    // `triggers ls --group` shows the template (kind + target + handler).
    let ls = String::from_utf8(
        common::pic_as(&env)
            .args(["triggers", "ls", "--group", &group])
            .output()
            .unwrap()
            .stdout,
    )
    .unwrap();
    assert!(
        ls.contains("kv") && ls.contains("on-write"),
        "ls should list the kv template binding on-write:\n{ls}"
    );

    // Re-apply is a NoOp (the template marker already exists — the diff keys on
    // the semantic identity, so it is not re-created).
    let report = String::from_utf8(
        common::pic_as(&env)
            .args(["apply", "--file"])
            .arg(&gpath)
            .output()
            .unwrap()
            .stdout,
    )
    .unwrap();
    assert!(
        !report.contains("trigger")
            || report.to_lowercase().contains("no changes")
            || report.contains("0"),
        "re-apply should not create a second template:\n{report}"
    );
}

#[ignore = "needs DATABASE_URL pointing at a running Postgres"]
#[test]
fn group_cron_trigger_is_rejected() {
    let Some(fx) = common::fixture_or_skip() else {
        return;
    };
    let env = common::admin_env(fx);
    let group = common::unique_slug("gtrig-cron");

    let _g = GroupGuard::new(&env.url, &env.token, &group);
    common::pic_as(&env)
        .args(["groups", "create", &group])
        .assert()
        .success();

    // A [group] cron trigger is a stateful kind — rejected at the manifest layer.
    let dir = manifest_dir();
    let gmanifest = format!(
        "[group]\nslug = \"{group}\"\nname = \"GTrig\"\n\n\
         [[triggers.cron]]\nscript = \"x\"\nschedule = \"0 0 * * * *\"\n"
    );
    let gpath = dir.path().join("group.toml");
    fs::write(&gpath, &gmanifest).unwrap();
    let out = common::pic_as(&env)
        .args(["apply", "--file"])
        .arg(&gpath)
        .output()
        .expect("apply");
    assert!(
        !out.status.success(),
        "a [group] cron trigger must be rejected (stateful kind)"
    );
    let err = String::from_utf8_lossy(&out.stderr);
    assert!(
        err.contains("event kind") || err.contains("cron"),
        "rejection should explain event-kinds-only:\n{err}"
    );
}