Add client package.

client/client.go

@@ -0,0 +1,74 @@
+// Package client provides a Go client for interacting with the MCIAS (Metacircular Identity and Access System).
+package client
+
+import (
+	"net/http"
+	"time"
+)
+
+// Client is the main struct for interacting with the MCIAS API.
+type Client struct {
+	// BaseURL is the base URL of the MCIAS server.
+	BaseURL string
+
+	// HTTPClient is the HTTP client used for making requests.
+	HTTPClient *http.Client
+
+	// Token is the authentication token.
+	Token string
+
+	// Username is the authenticated username.
+	Username string
+}
+
+// ClientOption is a function that configures a Client.
+type ClientOption func(*Client)
+
+// WithBaseURL sets the base URL for the client.
+func WithBaseURL(baseURL string) ClientOption {
+	return func(c *Client) {
+		c.BaseURL = baseURL
+	}
+}
+
+// WithHTTPClient sets the HTTP client for the client.
+func WithHTTPClient(httpClient *http.Client) ClientOption {
+	return func(c *Client) {
+		c.HTTPClient = httpClient
+	}
+}
+
+// WithToken sets the authentication token for the client.
+func WithToken(token string) ClientOption {
+	return func(c *Client) {
+		c.Token = token
+	}
+}
+
+// WithUsername sets the username for the client.
+func WithUsername(username string) ClientOption {
+	return func(c *Client) {
+		c.Username = username
+	}
+}
+
+// NewClient creates a new MCIAS client with the given options.
+func NewClient(options ...ClientOption) *Client {
+	client := &Client{
+		BaseURL: "http://localhost:8080",
+		HTTPClient: &http.Client{
+			Timeout: 10 * time.Second,
+		},
+	}
+
+	for _, option := range options {
+		option(client)
+	}
+
+	return client
+}
+
+// IsAuthenticated returns true if the client has a token.
+func (c *Client) IsAuthenticated() bool {
+	return c.Token != ""
+}