package chat

import (
	"sync"
)

type ClientMap struct {
	Clients map[*Client]bool
	sync.Mutex
}

var ClientHandler = ClientMap{
	Clients: map[*Client]bool{},
	Mutex:   sync.Mutex{},
}

func (c *ClientMap) AddClient(client *Client) {
	c.Lock()
	c.Clients[client] = true
	c.Unlock()
}

func (c *ClientMap) DeleteClient(ID string) {
	c.Lock()

	for client := range c.Clients {
		if client.ID == ID {
			delete(c.Clients, client)
		}
	}
	c.Unlock()
}

func (c *ClientMap) FindClientsByStreamer(streamer string) []*Client {
	c.Lock()

	var clients []*Client
	for client := range c.Clients {
		// check if the client is following the given streamer
		for s, _ := range client.FollowingStreamers {
			if s == streamer {
				clients = append(clients, client)
				break
			}
		}
	}
	c.Unlock()
	return clients
}