package ari

import (
	"context"
	"fmt"
	"io"
	"net/http"
	"strings"
	"time"

	"ai-operator/internal/config"
)

type Client struct {
	baseURL    string
	user       string
	password   string
	httpClient *http.Client
}

func NewClient(cfg config.AsteriskConfig) *Client {
	return &Client{
		baseURL:  strings.TrimRight(cfg.ARIURL, "/"),
		user:     cfg.ARIUser,
		password: cfg.ARIPassword,
		httpClient: &http.Client{
			Timeout: 5 * time.Second,
		},
	}
}

func (c *Client) AuthenticatedGET(ctx context.Context, path string) (*http.Response, error) {
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, c.endpoint(path), nil)
	if err != nil {
		return nil, err
	}
	req.SetBasicAuth(c.user, c.password)
	return c.httpClient.Do(req)
}

func (c *Client) UnauthenticatedGET(ctx context.Context, path string) (*http.Response, error) {
	req, err := http.NewRequestWithContext(ctx, http.MethodGet, c.endpoint(path), nil)
	if err != nil {
		return nil, err
	}
	return c.httpClient.Do(req)
}

func (c *Client) endpoint(path string) string {
	return c.baseURL + "/" + strings.TrimLeft(path, "/")
}

func drainAndClose(resp *http.Response) {
	if resp == nil || resp.Body == nil {
		return
	}
	_, _ = io.Copy(io.Discard, resp.Body)
	_ = resp.Body.Close()
}

func statusError(name string, got int, want int) string {
	return fmt.Sprintf("%s returned HTTP %d, want %d", name, got, want)
}