Notes

vitty-backend-api/api/serializers/notes.go

@@ -0,0 +1,19 @@
+package serializers
+
+import "github.com/GDGVIT/vitty-backend/vitty-backend-api/internal/models"
+
+func NotesSerializer(notes []models.Notes) []map[string]interface{} {
+	var result []map[string]interface{}
+
+	for _, note := range notes {
+		out := map[string]interface{}{
+			"note_id":      note.NoteID,
+			"note_name":    note.NoteName,
+			"note_content": note.NoteContent,
+			"course_id":    note.CourseID,
+			"course_name":  note.Courses.CourseName,
+		}
+		result = append(result, out)
+	}
+	return result
+}

vitty-backend-api/api/v2/initialize.go

@@ -10,4 +10,5 @@ func V2Handler(api fiber.Router) {
 	userHandler(group)
 	timetableHandler(group)
 	friendHandler(group)
+	noteHandler(group)
 }

vitty-backend-api/api/v2/noteHandler.go

@@ -0,0 +1,85 @@
+package v2
+
+import (
+	"strings"
+
+	"github.com/GDGVIT/vitty-backend/vitty-backend-api/api/middleware"
+	"github.com/GDGVIT/vitty-backend/vitty-backend-api/api/serializers"
+	"github.com/GDGVIT/vitty-backend/vitty-backend-api/internal/models"
+	"github.com/GDGVIT/vitty-backend/vitty-backend-api/internal/utils"
+	"github.com/gofiber/fiber/v2"
+)
+
+func noteHandler(api fiber.Router) {
+	group := api.Group("/notes")
+	group.Use(middleware.JWTAuthMiddleware)
+	group.Get("/:courseId", getNotes)
+	group.Post("/save", saveNote)
+	group.Delete("/:noteId?", deleteNote)
+}
+
+func getNotes(c *fiber.Ctx) error {
+	var notes models.Notes
+	courseId := c.Params("courseId")
+	notes.CourseID = courseId
+	notes.UserName = c.Locals("user").(models.User).Username
+	err, userNotes := notes.GetNotesByCourseId()
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Notes fetch failed",
+		})
+	}
+
+	if len(userNotes) == 0 {
+		return c.Status(fiber.StatusOK).JSON(fiber.Map{
+			"data": "No notes to display",
+		})
+	}
+
+	return c.Status(fiber.StatusOK).JSON(fiber.Map{
+		"data": serializers.NotesSerializer(userNotes),
+	})
+}
+
+func saveNote(c *fiber.Ctx) error {
+	var note models.Notes
+
+	if err := c.BodyParser(&note); err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Invalid request body",
+		})
+	}
+
+	if !strings.Contains(note.NoteID, "note_") || len(note.NoteID) < 32 {
+		note.NoteID = utils.UUIDWithPrefix("note")
+	}
+
+	note.SaveNote()
+
+	return c.Status(fiber.StatusOK).JSON(fiber.Map{
+		"detail": "Note Saved Successfully",
+	})
+}
+
+func deleteNote(c *fiber.Ctx) error {
+	var note models.Notes
+
+	noteId := c.Params("noteId")
+	if noteId == "" {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"detail": "Note id is missing",
+		})
+	}
+
+	note.NoteID = noteId
+	note.UserName = c.Locals("user").(models.User).Username
+
+	err := note.DeleteNote()
+
+	if err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.ErrBadRequest)
+	}
+	return c.Status(fiber.StatusOK).JSON(fiber.Map{
+		"detail": "Note deleted successfully",
+	})
+}

vitty-backend-api/go.mod

@@ -6,13 +6,17 @@ require (
 	firebase.google.com/go v3.13.0+incompatible
 	github.com/gofiber/fiber/v2 v2.46.0
 	github.com/golang-jwt/jwt/v4 v4.5.0
+	github.com/google/uuid v1.3.0
+	github.com/joho/godotenv v1.5.1
 	github.com/labstack/echo/v4 v4.11.2
+	github.com/labstack/gommon v0.4.0
 	github.com/urfave/cli/v2 v2.25.6
 	golang.org/x/exp v0.0.0-20230522175609-2e198f4a06a1
 	golang.org/x/oauth2 v0.11.0
 	google.golang.org/api v0.138.0
 	gorm.io/driver/postgres v1.5.2
 	gorm.io/gorm v1.25.2-0.20230530020048-26663ab9bf55
+	gorm.io/plugin/soft_delete v1.2.1
 )
 
 require (
@@ -30,7 +34,6 @@ require (
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/google/s2a-go v0.1.5 // indirect
-	github.com/google/uuid v1.3.0 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.2.5 // indirect
 	github.com/googleapis/gax-go/v2 v2.12.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
@@ -39,7 +42,6 @@ require (
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect
 	github.com/klauspost/compress v1.16.3 // indirect
-	github.com/labstack/gommon v0.4.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.19 // indirect
 	github.com/mattn/go-runewidth v0.0.14 // indirect

vitty-backend-api/go.sum

@@ -96,8 +96,12 @@ github.com/jackc/pgx/v5 v5.3.1 h1:Fcr8QJ1ZeLi5zsPZqQeUZhNhxfkkKBOgJuYkJHoBOtU=
 github.com/jackc/pgx/v5 v5.3.1/go.mod h1:t3JDKnCBlYIc0ewLF0Q7B8MXmoIaBOZj/ic7iHozM/8=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
+github.com/jinzhu/now v1.1.1/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/jinzhu/now v1.1.4/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
 github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
 github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/klauspost/compress v1.16.3 h1:XuJt9zzcnaz6a16/OU53ZjWp/v7/42WcR5t2a0PcNQY=
 github.com/klauspost/compress v1.16.3/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE=
 github.com/labstack/echo/v4 v4.11.2 h1:T+cTLQxWCDfqDEoydYm5kCobjmHwOwcv4OJAPHilmdE=
@@ -113,6 +117,8 @@ github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APP
 github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
 github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/mattn/go-sqlite3 v1.14.3 h1:j7a/xn1U6TKA/PHHxqZuzh64CdtRc7rU9M+AvkOl5bA=
+github.com/mattn/go-sqlite3 v1.14.3/go.mod h1:WVKg1VTActs4Qso6iwGbiFih2UIHo0ENGwNd0Lj+XmI=
 github.com/philhofer/fwd v1.1.1/go.mod h1:gk3iGcWd9+svBvR0sR+KPcfE+RNWozjowpeBVG3ZVNU=
 github.com/philhofer/fwd v1.1.2 h1:bnDivRJ1EWPjUIRXV5KfORO897HTbpFAQddBdE8t7Gw=
 github.com/philhofer/fwd v1.1.2/go.mod h1:qkPdfjR2SIEbspLqpe1tO4n5yICnr2DY7mqEx2tUTP0=
@@ -301,7 +307,13 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gorm.io/driver/postgres v1.5.2 h1:ytTDxxEv+MplXOfFe3Lzm7SjG09fcdb3Z/c056DTBx0=
 gorm.io/driver/postgres v1.5.2/go.mod h1:fmpX0m2I1PKuR7mKZiEluwrP3hbs+ps7JIGMUBpCgl8=
+gorm.io/driver/sqlite v1.1.3 h1:BYfdVuZB5He/u9dt4qDpZqiqDJ6KhPqs5QUqsr/Eeuc=
+gorm.io/driver/sqlite v1.1.3/go.mod h1:AKDgRWk8lcSQSw+9kxCJnX/yySj8G3rdwYlU57cB45c=
+gorm.io/gorm v1.20.1/go.mod h1:0HFTzE/SqkGTzK6TlDPPQbAYCluiVvhzoA1+aVyzenw=
+gorm.io/gorm v1.23.0/go.mod h1:l2lP/RyAtc1ynaTjFksBde/O8v9oOGIApu2/xRitmZk=
 gorm.io/gorm v1.25.2-0.20230530020048-26663ab9bf55 h1:sC1Xj4TYrLqg1n3AN10w871An7wJM0gzgcm8jkIkECQ=
 gorm.io/gorm v1.25.2-0.20230530020048-26663ab9bf55/go.mod h1:L4uxeKpfBml98NYqVqwAdmV1a2nBtAec/cf3fpucW/k=
+gorm.io/plugin/soft_delete v1.2.1 h1:qx9D/c4Xu6w5KT8LviX8DgLcB9hkKl6JC9f44Tj7cGU=
+gorm.io/plugin/soft_delete v1.2.1/go.mod h1:Zv7vQctOJTGOsJ/bWgrN1n3od0GBAZgnLjEx+cApLGk=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

vitty-backend-api/internal/models/initialize.go

@@ -11,6 +11,7 @@ func InitializeModels() {
 		"User":            &User{},
 		"Timetable":       &Timetable{},
 		"Friend Requests": &FriendRequest{},
+		"Notes":           &Notes{},
 		"Courses":         &Courses{},
 	}
 

vitty-backend-api/internal/models/notes.go

@@ -0,0 +1,41 @@
+package models
+
+import (
+	"github.com/GDGVIT/vitty-backend/vitty-backend-api/internal/database"
+	"gorm.io/gorm"
+)
+
+type Notes struct {
+	NoteID      string  `json:"note_id,omitempty" gorm:"unique"`
+	NoteName    string  `json:"note_name" gorm:"primaryKey"`
+	UserName    string  `json:"user_name" gorm:"primaryKey"`
+	CourseID    string  `json:"course_id"`
+	NoteContent string  `json:"note_content"`
+	User        User    `gorm:"foreignKey:UserName;references:Username;constraint:OnDelete:CASCADE"`
+	Courses     Courses ` gorm:"foreignKey:CourseID;references:CourseId;constraint:OnDelete:CASCADE"`
+}
+
+func (n *Notes) SaveNote() error {
+	result := database.DB.Save(n)
+
+	if result.RowsAffected == 0 {
+		return gorm.ErrRecordNotFound
+	}
+
+	return result.Error
+}
+
+func (n *Notes) DeleteNote() error {
+	result := database.DB.Where("user_name = ?", n.UserName).Delete(&n)
+	if result.RowsAffected == 0 {
+		return gorm.ErrRecordNotFound
+	}
+
+	return result.Error
+}
+
+func (n *Notes) GetNotesByCourseId() (error, []Notes) {
+	var notes []Notes
+	err := database.DB.Where(n).Preload("Courses").Find(&notes).Error
+	return err, notes
+}

vitty-backend-api/internal/utils/users.go

@@ -1,8 +1,11 @@
 package utils
 
 import (
+	"strings"
+
 	"github.com/GDGVIT/vitty-backend/vitty-backend-api/internal/database"
 	"github.com/GDGVIT/vitty-backend/vitty-backend-api/internal/models"
+	"github.com/google/uuid"
 )
 
 func CheckUserExists(username string) bool {
@@ -58,3 +61,10 @@ func ValidateUsername(username string) (bool, string) {
 
 	return true, ""
 }
+
+func UUIDWithPrefix(prefix string) string {
+	id := uuid.New().String()
+	id = prefix + "_" + id
+	id = strings.ReplaceAll(id, "-", "")
+	return id
+}