#![allow(clippy::expect_used)]

use tempfile::TempDir;

use codex_core::config::Config;
use codex_core::config::ConfigOverrides;
use codex_core::config::ConfigToml;

pub fn load_default_config_for_test(codex_home: &TempDir) -> Config {
    Config::load_from_base_config_with_overrides(
        ConfigToml::default(),
        ConfigOverrides::default(),
        codex_home.path().to_path_buf(),
    )
    .expect("defaults for test should always succeed")
}

pub fn load_sse_fixture(path: impl AsRef<std::path::Path>) -> String {
    let events: Vec<serde_json::Value> =
        serde_json::from_reader(std::fs::File::open(path).expect("read fixture"))
            .expect("parse JSON fixture");
    events
        .into_iter()
        .map(|e| {
            let kind = e
                .get("type")
                .and_then(|v| v.as_str())
                .expect("fixture event missing type");
            if e.as_object().map(|o| o.len() == 1).unwrap_or(false) {
                format!("event: {kind}\n\n")
            } else {
                format!("event: {kind}\ndata: {e}\n\n")
            }
        })
        .collect()
}

pub fn load_sse_fixture_with_id(path: impl AsRef<std::path::Path>, id: &str) -> String {
    let raw = std::fs::read_to_string(path).expect("read fixture template");
    let replaced = raw.replace("__ID__", id);
    let events: Vec<serde_json::Value> =
        serde_json::from_str(&replaced).expect("parse JSON fixture");
    events
        .into_iter()
        .map(|e| {
            let kind = e
                .get("type")
                .and_then(|v| v.as_str())
                .expect("fixture event missing type");
            if e.as_object().map(|o| o.len() == 1).unwrap_or(false) {
                format!("event: {kind}\n\n")
            } else {
                format!("event: {kind}\ndata: {e}\n\n")
            }
        })
        .collect()
}

pub async fn wait_for_event<F>(
    codex: &codex_core::Codex,
    mut predicate: F,
) -> codex_core::protocol::EventMsg
where
    F: FnMut(&codex_core::protocol::EventMsg) -> bool,
{
    use tokio::time::Duration;
    use tokio::time::timeout;
    loop {
        let ev = timeout(Duration::from_secs(1), codex.next_event())
            .await
            .expect("timeout waiting for event")
            .expect("stream ended unexpectedly");
        if predicate(&ev.msg) {
            return ev.msg;
        }
    }
}