Feature: Radarr (#13)

* feat(web): add and update radarr

* feat: add radarr download client

* feat: add tests

pkg/radarr/client.go

@@ -0,0 +1,82 @@
+package radarr
+
+import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/rs/zerolog/log"
+)
+
+func (c *client) get(endpoint string) (*http.Response, error) {
+	reqUrl := fmt.Sprintf("%v/api/v3/%v", c.config.Hostname, endpoint)
+
+	req, err := http.NewRequest(http.MethodGet, reqUrl, http.NoBody)
+	if err != nil {
+		log.Error().Err(err).Msgf("radarr client request error : %v", reqUrl)
+		return nil, err
+	}
+
+	if c.config.BasicAuth {
+		req.SetBasicAuth(c.config.Username, c.config.Password)
+	}
+
+	req.Header.Add("X-Api-Key", c.config.APIKey)
+	req.Header.Set("User-Agent", "autobrr")
+
+	res, err := c.http.Do(req)
+	if err != nil {
+		log.Error().Err(err).Msgf("radarr client request error : %v", reqUrl)
+		return nil, err
+	}
+
+	if res.StatusCode == http.StatusUnauthorized {
+		return nil, errors.New("unauthorized: bad credentials")
+	}
+
+	return res, nil
+}
+
+func (c *client) post(endpoint string, data interface{}) (*http.Response, error) {
+	reqUrl := fmt.Sprintf("%v/api/v3/%v", c.config.Hostname, endpoint)
+
+	jsonData, err := json.Marshal(data)
+	if err != nil {
+		log.Error().Err(err).Msgf("radarr client could not marshal data: %v", reqUrl)
+		return nil, err
+	}
+
+	req, err := http.NewRequest(http.MethodPost, reqUrl, bytes.NewBuffer(jsonData))
+	if err != nil {
+		log.Error().Err(err).Msgf("radarr client request error: %v", reqUrl)
+		return nil, err
+	}
+
+	if c.config.BasicAuth {
+		req.SetBasicAuth(c.config.Username, c.config.Password)
+	}
+
+	req.Header.Add("X-Api-Key", c.config.APIKey)
+	req.Header.Set("Content-Type", "application/json; charset=UTF-8")
+	req.Header.Set("User-Agent", "autobrr")
+
+	res, err := c.http.Do(req)
+	if err != nil {
+		log.Error().Err(err).Msgf("radarr client request error: %v", reqUrl)
+		return nil, err
+	}
+
+	// validate response
+	if res.StatusCode == http.StatusUnauthorized {
+		log.Error().Err(err).Msgf("radarr client bad request: %v", reqUrl)
+		return nil, errors.New("unauthorized: bad credentials")
+	} else if res.StatusCode != http.StatusOK {
+		log.Error().Err(err).Msgf("radarr client request error: %v", reqUrl)
+		return nil, nil
+	}
+
+	// return raw response and let the caller handle json unmarshal of body
+	return res, nil
+}