feat: Update authentication route and add comments to exported members

- The authentication route in the API has been updated to use a new router setup function.
- Comments have been added to all exported members of the `auth.go` module in the internal controllers package.

2 files changed, 15 insertions, 2 deletions

diff --git a/api/internal/controllers/auth.go b/api/internal/controllers/auth.go
index de9ed05..58653d0 100644
--- a/api/internal/controllers/auth.go
+++ b/api/internal/controllers/auth.go
@@ -14,6 +14,11 @@ import (
         "water/api/internal/database"
 )
 
+
+
+// AuthHandler is a function that handles users' authentication. It checks if the request
+// has valid credentials, authenticates the user and sets the user's session.
+// If the authentication is successful, it will allow the user to access protected routes.
 func AuthHandler (c *gin.Context) {
         username, password, ok := c.Request.BasicAuth()
         if !ok {
@@ -55,7 +60,11 @@ func AuthHandler (c *gin.Context) {
         c.JSON(http.StatusOK, gin.H{"token": apiToken, "user": user, "preferences": preference})
 }
 
-// generatToken will g
+
+// generateToken is a helper function used in the AuthHandler. It generates a random token for API authentication.
+// This function creates an empty byte slice of length 32 and fills it with cryptographic random data using the rand.Read function.
+// If an error occurs during the generation, it will return an empty string.
+// The generated cryptographic random data is then encoded into a base64 string and returned.
 func generateToken() string {
         token := make([]byte, 32)
         _, err := rand.Read(token)
diff --git a/api/internal/controllers/stats.go b/api/internal/controllers/stats.go
index d8ed434..2234787 100644
--- a/api/internal/controllers/stats.go
+++ b/api/internal/controllers/stats.go
@@ -8,6 +8,10 @@ import (
         "water/api/internal/models"
 )
 
+// TODO: add comments to all exported members of package.
+
+// GetAllStatistics connects to the database and queries for all statistics in the database.
+// If none have been found it will return an error, otherwise a 200 code is sent along with the list of statistics.
 func GetAllStatistics(c *gin.Context) {
         db := database.EstablishDBConnection()
         defer func(db *sql.DB) {
@@ -78,7 +82,7 @@ func PostNewStatistic(c *gin.Context) {
         c.JSON(http.StatusCreated, gin.H{"status": "created", "id": id})
 }
 
-func GetWeeklyStatistics (c *gin.Context) {
+func GetWeeklyStatistics(c *gin.Context) {
         db := database.EstablishDBConnection()
         defer func(db *sql.DB) {
                 err := db.Close()