mod common;

use std::sync::Arc;
use std::time::Duration;

use async_trait::async_trait;
use chorus::errors::GatewayError;
use chorus::gateway::*;
use chorus::types::{
    self, Channel, ChannelCreateSchema, ChannelModifySchema, GatewayReady, IntoShared,
    RoleCreateModifySchema, RoleObject,
};
#[cfg(target_arch = "wasm32")]
use wasm_bindgen_test::*;
#[cfg(target_arch = "wasm32")]
wasm_bindgen_test_configure!(run_in_browser);

#[cfg(not(target_arch = "wasm32"))]
use tokio::time::sleep;
#[cfg(target_arch = "wasm32")]
use wasmtimer::tokio::sleep;

#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
#[cfg_attr(not(target_arch = "wasm32"), tokio::test)]
/// Tests establishing a connection (hello and heartbeats) on the local gateway;
async fn test_gateway_establish() {
    let bundle = common::setup().await;

    let _: GatewayHandle = Gateway::spawn(bundle.urls.wss.clone()).await.unwrap();
    common::teardown(bundle).await
}

#[derive(Debug)]
struct GatewayReadyObserver {
    channel: tokio::sync::mpsc::Sender<()>,
}

#[async_trait]
impl Observer<GatewayReady> for GatewayReadyObserver {
    async fn update(&self, _data: &GatewayReady) {
        self.channel.send(()).await.unwrap();
    }
}

#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
#[cfg_attr(not(target_arch = "wasm32"), tokio::test)]
/// Tests establishing a connection and authenticating
async fn test_gateway_authenticate() {
    let bundle = common::setup().await;

    let gateway: GatewayHandle = Gateway::spawn(bundle.urls.wss.clone()).await.unwrap();

    let (ready_send, mut ready_receive) = tokio::sync::mpsc::channel(1);

    let observer = Arc::new(GatewayReadyObserver {
        channel: ready_send,
    });

    gateway
        .events
        .lock()
        .await
        .session
        .ready
        .subscribe(observer);

    let mut identify = types::GatewayIdentifyPayload::common();
    identify.token = bundle.user.token.clone();

    gateway.send_identify(identify).await;

    tokio::select! {
        // Fail, we timed out waiting for it
        () = sleep(Duration::from_secs(20)) => {
            println!("Timed out waiting for event, failing..");
            assert!(false);
        }
        // Sucess, we have received it
        Some(_) = ready_receive.recv() => {}
    };

    common::teardown(bundle).await
}

#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
#[cfg_attr(not(target_arch = "wasm32"), tokio::test)]
async fn test_self_updating_structs() {
    // PRETTYFYME: This test is a bit of a mess, but it works. Ideally, each self-updating struct
    // would have its own test.
    let mut bundle = common::setup().await;

    let received_channel = bundle
        .user
        .gateway
        .observe_and_into_inner(bundle.channel.clone())
        .await;

    assert_eq!(received_channel, bundle.channel.read().unwrap().clone());

    let modify_schema = ChannelModifySchema {
        name: Some("selfupdating".to_string()),
        ..Default::default()
    };
    received_channel
        .modify(modify_schema, None, &mut bundle.user)
        .await
        .unwrap();
    assert_eq!(
        bundle
            .user
            .gateway
            .observe_and_into_inner(bundle.channel.clone())
            .await
            .name
            .unwrap(),
        "selfupdating".to_string()
    );

    let guild = bundle
        .user
        .gateway
        .observe_and_into_inner(bundle.guild.clone())
        .await;
    assert!(guild.channels.is_none());

    Channel::create(
        &mut bundle.user,
        guild.id,
        None,
        ChannelCreateSchema {
            name: "selfupdating2".to_string(),
            channel_type: Some(types::ChannelType::GuildText),
            ..Default::default()
        },
    )
    .await
    .unwrap();

    let guild = bundle
        .user
        .gateway
        .observe_and_into_inner(guild.into_shared())
        .await;
    assert!(guild.channels.is_some());
    assert!(guild.channels.as_ref().unwrap().len() == 1);

    common::teardown(bundle).await
}

#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
#[cfg_attr(not(target_arch = "wasm32"), tokio::test)]
async fn test_recursive_self_updating_structs() {
    // Setup
    let mut bundle = common::setup().await;
    let guild = bundle.guild.clone();
    // Observe Guild, make sure it has no channels
    let guild = bundle.user.gateway.observe(guild.clone()).await;
    let inner_guild = guild.read().unwrap().clone();
    assert!(inner_guild.roles.is_none());
    // Create Role
    let permissions = types::PermissionFlags::CONNECT | types::PermissionFlags::MANAGE_EVENTS;
    let permissions = Some(permissions.to_string());
    let mut role_create_schema: types::RoleCreateModifySchema = RoleCreateModifySchema {
        name: Some("cool person".to_string()),
        permissions,
        hoist: Some(true),
        icon: None,
        unicode_emoji: Some("".to_string()),
        mentionable: Some(true),
        position: None,
        color: None,
    };
    let guild_id = inner_guild.id;
    let role = RoleObject::create(&mut bundle.user, guild_id, role_create_schema.clone())
        .await
        .unwrap();
    // Watch role;
    bundle
        .user
        .gateway
        .observe(role.clone().into_shared())
        .await;
    // Update Guild and check for Guild
    let inner_guild = guild.read().unwrap().clone();
    assert!(inner_guild.roles.is_some());
    // Update the Role
    role_create_schema.name = Some("yippieee".to_string());
    RoleObject::modify(&mut bundle.user, guild_id, role.id, role_create_schema)
        .await
        .unwrap();
    let role_inner = bundle
        .user
        .gateway
        .observe_and_into_inner(role.clone().into_shared())
        .await;
    assert_eq!(role_inner.name, "yippieee");
    // Check if the change propagated
    let guild = bundle.user.gateway.observe(bundle.guild.clone()).await;
    let inner_guild = guild.read().unwrap().clone();
    let guild_roles = inner_guild.roles;
    let guild_role = guild_roles.unwrap();
    let guild_role_inner = guild_role.get(0).unwrap().read().unwrap().clone();
    assert_eq!(guild_role_inner.name, "yippieee".to_string());
    common::teardown(bundle).await;
}

#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
#[cfg_attr(not(target_arch = "wasm32"), test)]
fn test_error() {
    let error = GatewayMessage("4000".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::Unknown);
    let error = GatewayMessage("4001".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::UnknownOpcode);
    let error = GatewayMessage("4002".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::Decode);
    let error = GatewayMessage("4003".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::NotAuthenticated);
    let error = GatewayMessage("4004".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::AuthenticationFailed);
    let error = GatewayMessage("4005".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::AlreadyAuthenticated);
    let error = GatewayMessage("4007".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::InvalidSequenceNumber);
    let error = GatewayMessage("4008".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::RateLimited);
    let error = GatewayMessage("4009".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::SessionTimedOut);
    let error = GatewayMessage("4010".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::InvalidShard);
    let error = GatewayMessage("4011".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::ShardingRequired);
    let error = GatewayMessage("4012".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::InvalidAPIVersion);
    let error = GatewayMessage("4013".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::InvalidIntents);
    let error = GatewayMessage("4014".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::DisallowedIntents);
}

#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
#[cfg_attr(not(target_arch = "wasm32"), test)]
fn test_error_message() {
    let error = GatewayMessage("Unknown Error".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::Unknown);
    let error = GatewayMessage("Unknown Opcode".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::UnknownOpcode);
    let error = GatewayMessage("Decode Error".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::Decode);
    let error = GatewayMessage("Not Authenticated".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::NotAuthenticated);
    let error = GatewayMessage("Authentication Failed".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::AuthenticationFailed);
    let error = GatewayMessage("Already Authenticated".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::AlreadyAuthenticated);
    let error = GatewayMessage("Invalid Seq".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::InvalidSequenceNumber);
    let error = GatewayMessage("Rate Limited".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::RateLimited);
    let error = GatewayMessage("Session Timed Out".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::SessionTimedOut);
    let error = GatewayMessage("Invalid Shard".to_string()).error().unwrap();
    assert_eq!(error, GatewayError::InvalidShard);
    let error = GatewayMessage("Sharding Required".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::ShardingRequired);
    let error = GatewayMessage("Invalid API Version".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::InvalidAPIVersion);
    let error = GatewayMessage("Invalid Intent(s)".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::InvalidIntents);
    let error = GatewayMessage("Disallowed Intent(s)".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::DisallowedIntents);
    // Also test the dot thing
    let error = GatewayMessage("Invalid Intent(s).".to_string())
        .error()
        .unwrap();
    assert_eq!(error, GatewayError::InvalidIntents);
}