package models

import (
	"context"
	"fmt"
	"net/http"

	"github.com/coder/websocket"
	"github.com/gin-gonic/gin"
)

var Origins []string = []string{"*"}

type Clients map[string]*Client

type Client struct {
	Connected *bool           `json:"connected"`
	Conn      *websocket.Conn `json:"-"`
}

func NewClients() Clients {
	return make(Clients)
}

// Connect a recieving websocket connection
func (c *Clients) ConnectRecievingWsConnection(id string, ctx *gin.Context) error {
	if _, exists := (*c)[id]; exists {
		return nil
	}

	conn, err := websocket.Accept(ctx.Writer, ctx.Request, &websocket.AcceptOptions{
		OriginPatterns: Origins,
	})

	if err != nil {
		return fmt.Errorf("error accept websocket client: %s", err)
	}

	b := true
	(*c)[id] = &Client{
		Connected: &b,
		Conn:      conn,
	}
	return nil
}

// Connect a recieving websocket connection
func (c *Clients) ConnectSendingWsConnection(id, url string) (*websocket.Conn, error) {
	if _, exists := (*c)[id]; exists {
		return (*c)[id].Conn, nil
	}

	header := http.Header{}
	header.Set("Authorization", "Bearer "+id)

	conn, _, err := websocket.Dial(context.Background(), url, &websocket.DialOptions{
		HTTPHeader: header,
	})
	if err != nil {
		return nil, err
	}

	b := true
	(*c)[id] = &Client{
		Connected: &b,
		Conn:      conn,
	}
	return conn, nil
}

func (c *Clients) RemoveClient(id string) {
	delete(*c, id)
}

func (c *Clients) GetClientPointer(id string) *bool {
	return (*c)[id].Connected
}

func (c *Clients) DisconnectWsConnection(id string, code websocket.StatusCode, reason string) {
	*(*c)[id].Connected = false
	(*c)[id].Conn.Close(code, reason)
}