porting - part 1 and 2 completed and working

garth/client/client.go

@@ -0,0 +1,179 @@
+package client
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/cookiejar"
+	"os"
+	"time"
+
+	"garmin-connect/garth/sso"
+	"garmin-connect/garth/types"
+)
+
+// Client represents the Garmin Connect API client
+type Client struct {
+	Domain      string
+	HTTPClient  *http.Client
+	Username    string
+	AuthToken   string
+	OAuth1Token *types.OAuth1Token
+	OAuth2Token *types.OAuth2Token
+}
+
+// NewClient creates a new Garmin Connect client
+func NewClient(domain string) (*Client, error) {
+	if domain == "" {
+		domain = "garmin.com"
+	}
+
+	jar, err := cookiejar.New(nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create cookie jar: %w", err)
+	}
+
+	return &Client{
+		Domain: domain,
+		HTTPClient: &http.Client{
+			Jar:     jar,
+			Timeout: 30 * time.Second,
+			CheckRedirect: func(req *http.Request, via []*http.Request) error {
+				if len(via) >= 10 {
+					return fmt.Errorf("too many redirects")
+				}
+				return nil
+			},
+		},
+	}, nil
+}
+
+// Login authenticates to Garmin Connect using SSO
+func (c *Client) Login(email, password string) error {
+	ssoClient := sso.NewClient(c.Domain)
+	oauth2Token, err := ssoClient.Login(email, password)
+	if err != nil {
+		return fmt.Errorf("SSO login failed: %w", err)
+	}
+
+	c.OAuth2Token = oauth2Token
+	c.AuthToken = fmt.Sprintf("%s %s", oauth2Token.TokenType, oauth2Token.AccessToken)
+
+	// Get user profile to set username
+	if err := c.GetUserProfile(); err != nil {
+		return fmt.Errorf("failed to get user profile after login: %w", err)
+	}
+
+	return nil
+}
+
+// GetUserProfile retrieves the current user's profile
+func (c *Client) GetUserProfile() error {
+	profileURL := fmt.Sprintf("https://connectapi.%s/userprofile-service/socialProfile", c.Domain)
+
+	req, err := http.NewRequest("GET", profileURL, nil)
+	if err != nil {
+		return fmt.Errorf("failed to create profile request: %w", err)
+	}
+
+	req.Header.Set("Authorization", c.AuthToken)
+	req.Header.Set("User-Agent", "com.garmin.android.apps.connectmobile")
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to get user profile: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		body, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("profile request failed with status %d: %s", resp.StatusCode, string(body))
+	}
+
+	var profile map[string]interface{}
+	if err := json.NewDecoder(resp.Body).Decode(&profile); err != nil {
+		return fmt.Errorf("failed to parse profile: %w", err)
+	}
+
+	if username, ok := profile["userName"].(string); ok {
+		c.Username = username
+		return nil
+	}
+
+	return fmt.Errorf("username not found in profile response")
+}
+
+// GetActivities retrieves recent activities
+func (c *Client) GetActivities(limit int) ([]types.Activity, error) {
+	if limit <= 0 {
+		limit = 10
+	}
+
+	activitiesURL := fmt.Sprintf("https://connectapi.%s/activitylist-service/activities/search/activities?limit=%d&start=0", c.Domain, limit)
+
+	req, err := http.NewRequest("GET", activitiesURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create activities request: %w", err)
+	}
+
+	req.Header.Set("Authorization", c.AuthToken)
+	req.Header.Set("User-Agent", "com.garmin.android.apps.connectmobile")
+
+	resp, err := c.HTTPClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get activities: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		body, _ := io.ReadAll(resp.Body)
+		return nil, fmt.Errorf("activities request failed with status %d: %s", resp.StatusCode, string(body))
+	}
+
+	var activities []types.Activity
+	if err := json.NewDecoder(resp.Body).Decode(&activities); err != nil {
+		return nil, fmt.Errorf("failed to parse activities: %w", err)
+	}
+
+	return activities, nil
+}
+
+// SaveSession saves the current session to a file
+func (c *Client) SaveSession(filename string) error {
+	session := types.SessionData{
+		Domain:    c.Domain,
+		Username:  c.Username,
+		AuthToken: c.AuthToken,
+	}
+
+	data, err := json.MarshalIndent(session, "", "  ")
+	if err != nil {
+		return fmt.Errorf("failed to marshal session: %w", err)
+	}
+
+	if err := os.WriteFile(filename, data, 0600); err != nil {
+		return fmt.Errorf("failed to write session file: %w", err)
+	}
+
+	return nil
+}
+
+// LoadSession loads a session from a file
+func (c *Client) LoadSession(filename string) error {
+	data, err := os.ReadFile(filename)
+	if err != nil {
+		return fmt.Errorf("failed to read session file: %w", err)
+	}
+
+	var session types.SessionData
+	if err := json.Unmarshal(data, &session); err != nil {
+		return fmt.Errorf("failed to unmarshal session: %w", err)
+	}
+
+	c.Domain = session.Domain
+	c.Username = session.Username
+	c.AuthToken = session.AuthToken
+
+	return nil
+}