checkpoint(cover): backend ready before AI development

backend/.env-example

@@ -1,2 +0,0 @@
-# This is secret key for jwt signature
-JWT_SECRET=just a random string here

backend/config/config.go

@@ -19,4 +19,5 @@ func LoadEnv() {
 	Env["db"] = defaultValue(os.Getenv("POSTGRES_DB"), "postgresql://postgres:postgres@db:5432/cover-letter")
 	Env["JWT_SECRET"] = defaultValue(os.Getenv("JWT_SECRET"), "just a random string here")
 	Env["Environment"] = defaultValue(os.Getenv("Environment"), "dev")
+	Env["CHATGPT_KEY"] = defaultValue(os.Getenv("CHATGPT_KEY"), "")
 }

backend/controllers/cover/cover.go

@@ -0,0 +1,55 @@
+package cover
+
+import (
+	"backend/models/template"
+	"backend/utils"
+	"backend/utils/jwt"
+	res "backend/utils/responses"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-playground/validator/v10"
+)
+
+var validate = validator.New()
+
+func Get(c *gin.Context) {
+}
+
+type CoverPost struct {
+	TemplateId  string `json:"templateId" validate:"required,number,min=1"`
+	Application string `json:"application" validate:"required,min=50"`
+}
+
+func Post(c *gin.Context) {
+	// Receive data from frontend, check if data is okay, hash password, call model
+	var data CoverPost
+	if err := utils.BindAndValidate(&data, c); err != nil {
+		res.Error(c, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	// Get user data from the token
+	user, err := jwt.GetUser(c)
+	if err != nil {
+		res.NeedsToLogin(c)
+		return
+	}
+
+	// Get tempalte
+	templates, err := template.Get("user_id = $1 AND id = $2", user.Id, data.TemplateId)
+	if err != nil {
+		res.Error(c, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	// Call chat and ask for cover letter nicely
+
+	res.Success(c, templates)
+}
+
+func Put(c *gin.Context) {
+}
+
+func Delete(c *gin.Context) {
+}

backend/routes/routes.go

@@ -1,6 +1,7 @@
 package routes
 
 import (
+	"backend/controllers/cover"
 	"backend/controllers/template"
 	"backend/controllers/user"
 	"backend/middleware"
@@ -29,5 +30,9 @@ func SetupRoutes() *gin.Engine {
 	// PUT (Edit)
 	// DELETE (Delete)
 
+	// Cover letter routes
+	covers := auth.Group("/cover")
+	covers.POST("", cover.Post)
+
 	return r
 }

backend/utils/chatgpt/chatgpt.go

@@ -0,0 +1 @@
+package chatgpt

backend/utils/checkData.go

@@ -0,0 +1,29 @@
+package utils
+
+import (
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-playground/validator/v10"
+)
+
+var validate = validator.New()
+
+func BindAndValidate(data any, c *gin.Context) error {
+	fmt.Println("🔍 BindAndValidate called")
+
+	if err := c.ShouldBindJSON(data); err != nil {
+		fmt.Println("❌ Bind error:", err)
+		return err
+	}
+
+	fmt.Println("✅ Bind success:", data)
+
+	if err := validate.Struct(data); err != nil {
+		fmt.Println("❌ Validation error:", err)
+		return err
+	}
+
+	fmt.Println("✅ Validation success")
+	return nil
+}