add ability to remove user and add task depndencies closes #69

go.mod

@@ -21,6 +21,9 @@ require (
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.19.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
+	github.com/jackc/pgx/v5 v5.5.5 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect

go.sum

@@ -10,6 +10,7 @@ github.com/charmbracelet/log v0.2.5 h1:1yVvyKCKVV639RR4LIq1iy1Cs1AKxuNO+Hx2LJtk7
 github.com/charmbracelet/log v0.2.5/go.mod h1:nQGK8tvc4pS9cvVEH/pWJiZ50eUq1aoXUOjGpXvdD0k=
 github.com/charmbracelet/log v0.3.1 h1:TjuY4OBNbxmHWSwO3tosgqs5I3biyY8sQPny/eCMTYw=
 github.com/charmbracelet/log v0.3.1/go.mod h1:OR4E1hutLsax3ZKpXbgUqPtTjQfrh1pG3zwHGWuuq8g=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uqxgUFjbI0=
 github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk=
 github.com/galeone/tensorflow/tensorflow/go v0.0.0-20221023090153-6b7fa0680c3e h1:9+2AEFZymTi25FIIcDwuzcOPH04z9+fV6XeLiGORPDI=
@@ -34,6 +35,12 @@ github.com/google/uuid v1.3.1 h1:KjJaJ9iWZ3jOFZIf1Lqf4laDRCasjl0BCmnEGxkdLb4=
 github.com/google/uuid v1.3.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a h1:bbPeKD0xmW/Y25WS6cokEszi5g+S0QxI/d45PkRi7Nk=
+github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.5.5 h1:amBjrZVmksIdNjxGW/IiIMzxMKZFelXbUoPNb+8sjQw=
+github.com/jackc/pgx/v5 v5.5.5/go.mod h1:ez9gk+OAat140fv9ErkZDYFWmXLfV+++K0uAOiwgm1A=
 github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ=
 github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
@@ -53,11 +60,15 @@ github.com/muesli/reflow v0.3.0 h1:IFsN6K9NfGtjeggFP+68I4chLZV2yIKsXJFNZ+eWh6s=
 github.com/muesli/reflow v0.3.0/go.mod h1:pbwTDkVPibjO2kyvBQRBxTWEEGDGq0FlB1BIKtnHY/8=
 github.com/muesli/termenv v0.15.2 h1:GohcuySI0QmI3wN8Ok9PtKGkgkFIk7y6Vpb5PvrY+Wo=
 github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1noLXviQ8=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.6 h1:Sovz9sDSwbOz9tgUy8JpT+KgCkPYJEN/oYzlJiYTNLg=
 github.com/rivo/uniseg v0.4.6/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 golang.org/x/crypto v0.13.0 h1:mvySKfSWJ+UKUii46M40LOvyWfN0s2U+46/jDd0e6Ck=
 golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
 golang.org/x/crypto v0.18.0 h1:PGVlW0xEltQnzFZ55hkuX5+KLyrMYhHld1YHO4AKcdc=
@@ -87,3 +98,5 @@ google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
 google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

logic/db_types/types.go

@@ -68,35 +68,25 @@ type BaseModel struct {
 	Status int
 	Id     string
 
-	ModelType int
-	ImageMode int
-	Width     int
-	Height    int
-	Format    string
+	ModelType    int    `db:"model_type"`
+	ImageModeRaw string `db:"color_mode"`
+	ImageMode    int    `db:"0"`
+	Width        int
+	Height       int
+	Format       string
+	CanTrain     int `db:"can_train"`
 }
 
 var ModelNotFoundError = errors.New("Model not found error")
 
 func GetBaseModel(db *sql.DB, id string) (base *BaseModel, err error) {
-	rows, err := db.Query("select name, status, id, width, height, color_mode, format, model_type from models where id=$1;", id)
+	var model BaseModel
+	err = GetDBOnce(db, &model, "models where id=$1", id)
 	if err != nil {
 		return
 	}
-	defer rows.Close()
-
-	if !rows.Next() {
-		return nil, ModelNotFoundError
-	}
-
-	base = &BaseModel{}
-	var colorMode string
-	err = rows.Scan(&base.Name, &base.Status, &base.Id, &base.Width, &base.Height, &colorMode, &base.Format, &base.ModelType)
-	if err != nil {
-		return nil, err
-	}
-
-	base.ImageMode = StringToImageMode(colorMode)
-	return
+	model.ImageMode = StringToImageMode(model.ImageModeRaw)
+	return &model, nil
 }
 
 func (m BaseModel) CanEval() bool {

logic/db_types/user.go

@@ -7,7 +7,8 @@ import (
 type UserType int
 
 const (
-	User_Not_Auth UserType = iota
+	User_Deleted UserType = iota - 1
+	User_Not_Auth
 	User_Normal
 	User_Admin
 )

logic/models/data.go

@@ -439,6 +439,8 @@ func handleDataUpload(handle *Handle) {
 			return c.SendJSONStatus(http.StatusNotFound, "Model not found")
 		} else if err != nil {
 			return c.Error500(err)
+		} else if model.CanTrain == 0 {
+			return c.JsonBadRequest("Model can not be trained!")
 		}
 
 		// TODO mk this path configurable
@@ -468,6 +470,10 @@ func handleDataUpload(handle *Handle) {
 		model, err := GetBaseModel(c.Db, obj.Id)
 		if err == ModelNotFoundError {
 			return c.JsonBadRequest("Model not found")
+		} else if err != nil {
+			return c.E500M("Failed to get model information", err)
+		} else if model.CanTrain == 0 {
+			return c.JsonBadRequest("Model can not be trained!")
 		}
 
 		if model.ModelType != 2 && model.Status != CONFIRM_PRE_TRAINING || model.ModelType == 2 && model.Status != CONFIRM_PRE_TRAINING && model.Status != READY {
@@ -516,6 +522,8 @@ func handleDataUpload(handle *Handle) {
 			return c.JsonBadRequest("Could not find the model")
 		} else if err != nil {
 			return c.E500M("Error getting model information", err)
+		} else if model.CanTrain == 0 {
+			return c.JsonBadRequest("Model can not be trained!")
 		}
 
 		// TODO make this work for zip files as well
@@ -622,6 +630,8 @@ func handleDataUpload(handle *Handle) {
 			return c.SendJSONStatus(http.StatusNotFound, "Model not found")
 		} else if err != nil {
 			return c.Error500(err)
+		} else if model.CanTrain == 0 {
+			return c.JsonBadRequest("Model can not be trained!")
 		}
 
 		// TODO work in allowing the model to add new in the pre ready moment

logic/models/delete.go

@@ -9,20 +9,27 @@ import (
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/utils"
 )
 
-func deleteModelJSON(c *Context, id string) *Error {
-	c.Logger.Warnf("Removing model with id: %s", id)
-	_, err := c.Db.Exec("delete from models where id=$1;", id)
+func DeleteModel(c BasePack, id string) (err error) {
+	c.GetLogger().Warnf("Removing model with id: %s", id)
+	_, err = c.GetDb().Exec("delete from models where id=$1;", id)
 	if err != nil {
-		return c.E500M("Failed to delete models", err)
+		return
 	}
 
 	model_path := path.Join("./savedData", id)
-	c.Logger.Warnf("Removing folder of model with id: %s at %s", id, model_path)
+	c.GetLogger().Warnf("Removing folder of model with id: %s at %s", id, model_path)
 	err = os.RemoveAll(model_path)
 	if err != nil {
-		return c.E500M("Failed to remove data", err)
+		return
 	}
+	return
+}
 
+func deleteModelJSON(c *Context, id string) *Error {
+	err := DeleteModel(c, id)
+	if err != nil {
+		return c.E500M("Failed to delete models", err)
+	}
 	return c.SendJSON(id)
 }
 

logic/models/run.go

@@ -120,7 +120,7 @@ func runModelExp(base BasePack, model *BaseModel, def_id string, inputImage *tf.
 func ClassifyTask(base BasePack, task Task) (err error) {
 	task.UpdateStatusLog(base, TASK_RUNNING, "Runner running task")
 
-	model, err := GetBaseModel(base.GetDb(), task.ModelId)
+	model, err := GetBaseModel(base.GetDb(), *task.ModelId)
 	if err != nil {
 		task.UpdateStatusLog(base, TASK_FAILED_RUNNING, "Failed to obtain the model")
 		return err

logic/models/train/train.go

@@ -1625,7 +1625,7 @@ func trainExpandable(c *Context, model *BaseModel) {
 func RunTaskTrain(b BasePack, task Task) (err error) {
 	l := b.GetLogger()
 
-	model, err := GetBaseModel(b.GetDb(), task.ModelId)
+	model, err := GetBaseModel(b.GetDb(), *task.ModelId)
 	if err != nil {
 		task.UpdateStatusLog(b, TASK_FAILED_RUNNING, "Failed to get model information")
 		l.Error("Failed to get model information", "err", err)
@@ -1683,7 +1683,7 @@ func RunTaskTrain(b BasePack, task Task) (err error) {
 }
 
 func RunTaskRetrain(b BasePack, task Task) (err error) {
-	model, err := GetBaseModel(b.GetDb(), task.ModelId)
+	model, err := GetBaseModel(b.GetDb(), *task.ModelId)
 	if err != nil {
 		return err
 	} else if model.Status != READY_RETRAIN {
@@ -1759,6 +1759,8 @@ func handleTrain(handle *Handle) {
 			return c.JsonBadRequest("Model not found")
 		} else if err != nil {
 			return c.E500M("Failed to get model information", err)
+		} else if model.CanTrain == 0 {
+			return c.JsonBadRequest("Model can not be trained!")
 		}
 
 		if model.Status != CONFIRM_PRE_TRAINING {
@@ -1813,6 +1815,8 @@ func handleTrain(handle *Handle) {
 			return c.E500M("Faield to get model", err)
 		} else if model.Status != READY && model.Status != READY_RETRAIN_FAILED && model.Status != READY_ALTERATION_FAILED {
 			return c.JsonBadRequest("Model in invalid status for re-training")
+		} else if model.CanTrain == 0 {
+			return c.JsonBadRequest("Model can not be trained!")
 		}
 
 		c.Logger.Info("Expanding definitions for models", "id", model.Id)

logic/tasks/handleUpload.go

@@ -55,6 +55,8 @@ func handleUpload(handler *Handle) {
 		model, err := GetBaseModel(c.Db, requestData.ModelId)
 		if err != nil {
 			return c.Error500(err)
+		} else if model.CanTrain == 0 {
+			return c.JsonBadRequest("Model can not be trained!")
 		}
 
 		switch model.Status {

logic/tasks/runner/runner.go

@@ -14,6 +14,7 @@ import (
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/models"
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/models/train"
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/tasks/utils"
+	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/users"
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/utils"
 )
 
@@ -71,6 +72,14 @@ func runner(config Config, db *sql.DB, task_channel chan Task, index int, back_c
 				logger.Error("Failed to tain the model", "error", err)
 			}
 
+			back_channel <- index
+			continue
+		} else if task.TaskType == int(TASK_TYPE_DELETE_USER) {
+			logger.Warn("User deleting Task")
+			if err = DeleteUser(base, task); err != nil {
+				logger.Error("Failed to tain the model", "error", err)
+			}
+
 			back_channel <- index
 			continue
 		}
@@ -168,16 +177,23 @@ func RunnerOrchestrator(db *sql.DB, config Config) {
 		}
 
 		if task_to_dispatch == nil {
-			var task Task
-			err := GetDBOnce(db, &task, "tasks where status=$1 limit 1", TASK_TODO)
+			var task TaskT
+			err := GetDBOnce(db, &task, "tasks as t "+
+				// Get depenencies
+				"left join tasks_dependencies as td on t.id=td.main_id "+
+				// Get the task that the depencey resolves to
+				"left join tasks as t2 on t2.id=td.dependent_id "+
+				"where t.status=1 "+
+				"group by t.id having count(td.id) filter (where t2.status in (0,1,2,3)) = 0;")
 			if err != NotFoundError && err != nil {
-				log.Error("Failed to get tasks from db")
+				log.Error("Failed to get tasks from db", "err", err)
 				continue
 			}
 			if err == NotFoundError {
 				task_to_dispatch = nil
 			} else {
-				task_to_dispatch = &task
+				temp := Task(task)
+				task_to_dispatch = &temp
 			}
 		}
 

logic/tasks/utils/utils.go

@@ -10,7 +10,7 @@ import (
 type Task struct {
 	Id            string    `db:"id" json:"id"`
 	UserId        string    `db:"user_id" json:"user_id"`
-	ModelId       string    `db:"model_id" json:"model_id"`
+	ModelId       *string   `db:"model_id" json:"model_id"`
 	Status        int       `db:"status" json:"status"`
 	StatusMessage string    `db:"status_message" json:"status_message"`
 	UserConfirmed int       `db:"user_confirmed" json:"user_confirmed"`
@@ -21,6 +21,27 @@ type Task struct {
 	CreatedOn     time.Time `db:"created_on" json:"created"`
 }
 
+// Find better way todo this
+type TaskT struct {
+	Id            string    `db:"t.id" json:"id"`
+	UserId        string    `db:"t.user_id" json:"user_id"`
+	ModelId       *string   `db:"t.model_id" json:"model_id"`
+	Status        int       `db:"t.status" json:"status"`
+	StatusMessage string    `db:"t.status_message" json:"status_message"`
+	UserConfirmed int       `db:"t.user_confirmed" json:"user_confirmed"`
+	Compacted     int       `db:"t.compacted" json:"compacted"`
+	TaskType      int       `db:"t.task_type" json:"type"`
+	ExtraTaskInfo string    `db:"t.extra_task_info" json:"extra_task_info"`
+	Result        string    `db:"t.result" json:"result"`
+	CreatedOn     time.Time `db:"t.created_on" json:"created"`
+}
+
+type TaskDependents struct {
+	Id          string `db:"id" json:"id"`
+	MainId      string `db:"main_id" json:"main_id"`
+	DependentId string `db:"dependent_id" json:"dependent_id"`
+}
+
 type TaskStatus int
 
 const (
@@ -39,6 +60,7 @@ const (
 	TASK_TYPE_CLASSIFICATION TaskType = 1 + iota
 	TASK_TYPE_TRAINING
 	TASK_TYPE_RETRAINING
+	TASK_TYPE_DELETE_USER
 )
 
 type TaskAgreement int
@@ -82,3 +104,15 @@ func (t Task) SetResult(base BasePack, result any) (err error) {
 	_, err = base.GetDb().Exec("update tasks set result=$1 where id=$2", text, t.Id)
 	return
 }
+
+func (t Task) Depend(base BasePack, depend_id string) (err error) {
+	var dependency = struct {
+		Main      string `db:"main_id"`
+		Dependent string `db:"dependent_id"`
+	}{
+		Main:      t.Id,
+		Dependent: depend_id,
+	}
+	_, err = InsertReturnId(base.GetDb(), &dependency, "tasks_dependencies", "id")
+	return
+}

logic/users/users.go

@@ -1,4 +1,4 @@
-package main
+package users
 
 import (
 	"crypto/rand"
@@ -12,6 +12,8 @@ import (
 
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/db_types"
 	dbtypes "git.andr3h3nriqu3s.com/andr3/fyp/logic/db_types"
+	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/models"
+	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/tasks/utils"
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/utils"
 )
 
@@ -80,7 +82,31 @@ func generateToken(db *sql.DB, email string, password string, name string) (stri
 	return token, true
 }
 
-func usersEndpints(db *sql.DB, handle *Handle) {
+func DeleteUser(base BasePack, task Task) (err error) {
+	ids, err := GetDbMultitple[JustId](base.GetDb(), "models where user_id=$1;", task.ExtraTaskInfo)
+	if err != nil {
+		task.UpdateStatusLog(base, TASK_FAILED_RUNNING, "Could not get models list")
+		return
+	}
+
+	for i := range ids {
+		err = DeleteModel(base, ids[i].Id)
+		if err != nil {
+			base.GetLogger().Error("Could not delete model", "err", err)
+		}
+	}
+
+	_, err = base.GetDb().Exec("delete from users where id=$1", task.ExtraTaskInfo)
+	if err != nil {
+		task.UpdateStatusLog(base, TASK_FAILED_RUNNING, "Could not delete user")
+		return
+	}
+
+	task.UpdateStatusLog(base, TASK_DONE, "User deleted with success")
+	return
+}
+
+func UsersEndpints(db *sql.DB, handle *Handle) {
 
 	type UserLogin struct {
 		Email    string `json:"email"`
@@ -98,6 +124,10 @@ func usersEndpints(db *sql.DB, handle *Handle) {
 			return c.E500M("Failed to get user from token", err)
 		}
 
+		if user.UserType == int(User_Deleted) {
+			return c.JsonBadRequest("Your user is in the process of being deleted!")
+		}
+
 		type UserReturn struct {
 			Token    string `json:"token"`
 			Id       string `json:"id"`
@@ -381,4 +411,82 @@ func usersEndpints(db *sql.DB, handle *Handle) {
 
 		return c.SendJSON("Ok")
 	})
+
+	type DeleteUser struct {
+		Id       string `json:"id" validate:"required"`
+		Password string `json:"password" validate:"required"`
+	}
+	DeleteAuthJson(handle, "/user/delete", User_Normal, func(c *Context, obj *DeleteUser) *Error {
+		// TODO let admin delete users
+		if c.User.Id != obj.Id {
+			return c.E500M("TODO implement this for admins", nil)
+		}
+
+		// TODO let admin delete users
+		// Verify the user password
+		_, generated := generateToken(c.Db, c.User.Email, obj.Password, "User Verification")
+		if !generated {
+			return c.JsonBadRequest("Password provided is incorrect")
+		}
+
+		// Disable the ability for the user to create new tasks
+		_, err := c.Db.Exec(
+			"update models as m set can_train=0 "+
+				"from users as u "+
+				"where u.id=$1 and u.id=m.user_id;",
+			obj.Id,
+		)
+		if err != nil {
+			return c.E500M("Failed to stop the models", err)
+		}
+
+		type CreateNewTask struct {
+			UserId        string `db:"user_id"`
+			TaskType      int    `db:"task_type"`
+			Status        int    `db:"status"`
+			ExtraTaskInfo string `db:"extra_task_info"`
+		}
+
+		newTask := CreateNewTask{
+			UserId: c.Handle.Config.ServiceUser.UserId,
+			// TODO move this to an enum
+			TaskType:      int(TASK_TYPE_DELETE_USER),
+			Status:        TASK_PREPARING,
+			ExtraTaskInfo: obj.Id,
+		}
+		t_id, err := InsertReturnId(c, &newTask, "tasks", "id")
+		if err != nil {
+			return c.E500M("Failed to create task", err)
+		}
+
+		task := Task{Id: t_id}
+
+		type taskId struct {
+			Id string `db:"t.id"`
+		}
+		tasks, err := GetDbMultitple[taskId](c, "tasks as t "+
+			"left join models as m on m.id=t.model_id "+
+			"where (t.user_id=$1 or m.user_id=$1) and t.status in (0,1,2,3) "+
+			"group by t.id;",
+			obj.Id)
+
+		for i := range tasks {
+			err = task.Depend(c, tasks[i].Id)
+			if err != nil {
+				c.Logger.Error("Failed to mark task as depency", "err", err)
+			}
+		}
+
+		err = task.UpdateStatus(c, TASK_TODO, "Task ready")
+		if err != nil {
+			return c.E500M("Failed to mark task as ready", err)
+		}
+
+		_, err = c.Db.Exec("update users set user_type=-1 where id=$1", obj.Id)
+		if err != nil {
+			return c.E500M("Failed to delete user", err)
+		}
+
+		return c.SendJSON("User to be deleted")
+	})
 }

logic/utils/config.go

@@ -97,7 +97,7 @@ func (c *Config) Cleanup(db *sql.DB) {
 	failLog(err)
 	_, err = db.Exec("update models set status=$1 where status=$2", FAILED_PREPARING, PREPARING)
 	failLog(err)
-	_, err = db.Exec("update tasks set status=$1 where status=$2", TASK_PICKED_UP, TASK_TODO)
+	_, err = db.Exec("update tasks set status=$1 where status=$2", TASK_TODO, TASK_PICKED_UP)
 	failLog(err)
 
 	tasks, err := GetDbMultitple[Task](db, "tasks where status=$1", TASK_RUNNING)

main.go

@@ -10,6 +10,7 @@ import (
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/models"
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/tasks"
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/tasks/runner"
+	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/users"
 	. "git.andr3h3nriqu3s.com/andr3/fyp/logic/utils"
 )
 
@@ -49,7 +50,7 @@ func main() {
 	// TODO Handle this in other way
 	handle.ReadTypesFilesApi("/savedData/", ".", []string{".png", ".jpeg"}, []string{"image/png", "image/jpeg"})
 
-	usersEndpints(db, handle)
+	UsersEndpints(db, handle)
 	HandleModels(handle)
 	HandleTasks(handle)
 

sql/models.sql

@@ -10,13 +10,14 @@ create table if not exists models (
     -- -1: failed preparing
     -- 1: preparing
     status integer default 1,
-    
+
     -- Types:
     -- 0: Unset
     -- 1: simple
     -- 2: expandable
     model_type integer default 0,
 
+    can_train integer default 1,
     width integer,
     height integer,
     color_mode varchar (20),
@@ -51,7 +52,7 @@ create table if not exists model_data_point (
     status_message text
 );
 
--- drop table if exists model_definition; 
+-- drop table if exists model_definition;
 create table if not exists model_definition (
     id uuid primary key default gen_random_uuid(),
     model_id uuid references models (id) on delete cascade,
@@ -82,10 +83,10 @@ create table if not exists model_definition_layer (
     -- ei 28,28,1
     -- a 28x28 grayscale image
     shape text not null,
-    
+
     -- Type based on the expandability
     -- 0: not expandalbe model
-    -- 1: fixed 
+    -- 1: fixed
     -- 2: head
     exp_type integer default 0
 );
@@ -111,4 +112,3 @@ create table if not exists exp_model_head (
     created_on timestamp default current_timestamp,
     epoch_progress integer default 0
 );
-

sql/tasks.sql

@@ -16,19 +16,25 @@ create table if not exists tasks (
 
     result text default '',
     extra_task_info text default '',
-    
+
     -- -1: user said task is wrong
     --  0: no user input
     --  1: user said task is ok
     user_confirmed integer default 0,
-    
+
     -- Tells the user if the file has been already compacted into
     --  embendings
     compacted integer default 0,
-        
+
     -- TODO move the training tasks to here
     --  1: Classification
     task_type integer,
 
     created_on timestamp default current_timestamp
-)
+);
+
+create table if not exists tasks_dependencies (
+    id uuid primary key default gen_random_uuid(),
+    main_id uuid references tasks (id) on delete cascade not null,
+    dependent_id uuid references tasks (id) on delete cascade not null
+);

webpage/src/NavBar.svelte

@@ -1,4 +1,5 @@
 <script lang="ts">
+	import Notifications from './lib/Notifications.svelte';
 	import { userStore } from './routes/UserStore.svelte';
 </script>
 
@@ -26,6 +27,8 @@
 	</ul>
 </nav>
 
+<Notifications />
+
 <style class="scss">
 	nav {
 		background: #ececec;

webpage/src/lib/Notifications.svelte

@@ -0,0 +1,42 @@
+<script lang="ts">
+	import { fly, fade } from 'svelte/transition';
+	import { notificationStore } from './NotificationsStore.svelte';
+</script>
+
+<div class="notifications">
+	{#each notificationStore.notifications as noti}
+		<div
+			class="notification"
+			class:noti-success={noti.type === 'success'}
+			class:noti-danger={noti.type === 'danger'}
+			class:noti-info={noti.type === 'info'}
+			in:fly|global={{ duration: 300, y: -120, opacity: 0 }}
+			out:fly|global={{ duration: 300, y: -120, opacity: 1 }}
+		>
+			{noti.message}
+			{@html noti.html ?? ''}
+		</div>
+	{/each}
+</div>
+
+<style lang="scss">
+	.notifications {
+		position: fixed;
+		top: 0;
+		left: 50%;
+		transform: translateX(-50%);
+		width: max(300px, 30%);
+
+		.notification {
+			border: 1px solid black;
+			padding: 20px;
+			background: #ffffff;
+			margin: 15px 0;
+			border-radius: 20px;
+
+			&.noti-danger {
+				background: var(--danger-ligther);
+			}
+		}
+	}
+</style>

webpage/src/lib/NotificationsStore.svelte.ts

@@ -0,0 +1,68 @@
+type NotificationType = 'danger' | 'success' | 'info';
+type Notification = {
+	type?: NotificationType;
+	timeToLive?: number;
+	message: string;
+	html?: string;
+};
+
+export function createNotificationStore(defaultTimetoLive: number) {
+	type InternalNotifications = {
+		notification: Notification;
+		endDate: Date;
+	};
+	let notifications = $state<InternalNotifications[]>([]);
+	let timeout = $state<number | undefined>();
+
+	function clearNotifications() {
+		const now = new Date().getTime();
+		let min: number | undefined = undefined;
+		notifications = notifications.filter((a) => {
+			const t = a.endDate.getTime();
+			if (t <= now) {
+				return false;
+			}
+			if (min == undefined) {
+				min = t;
+			} else if (min > t) {
+				min = t;
+			}
+			return true;
+		});
+		if (min != undefined) {
+			timeout = setTimeout(clearNotifications, now - min);
+		} else {
+			timeout = undefined;
+		}
+	}
+
+	function add(noti: Notification) {
+		if (!timeout) {
+			timeout = setTimeout(clearNotifications, noti.timeToLive ?? defaultTimetoLive);
+		}
+		const now = new Date();
+		notifications.push({
+			notification: noti,
+			endDate: new Date(now.getTime() + (noti.timeToLive ?? defaultTimetoLive))
+		});
+	}
+
+	return {
+		get notifications() {
+			return notifications.map((a) => a.notification);
+		},
+		clear() {
+			notifications.forEach((a) => clearInterval(a.timeout));
+			notifications = [];
+		},
+		add,
+		notify(message: string, type: NotificationType = 'danger') {
+			add({ message, type });
+		},
+		display(message: string) {
+			add({ message, type: 'danger' });
+		}
+	};
+}
+
+export const notificationStore = createNotificationStore(5000);

webpage/src/lib/requests.svelte.ts

@@ -108,7 +108,11 @@ export async function showMessage(
 	if (e == null) {
 		return false;
 	} else if (e instanceof Response) {
-		messages.display(await e.json());
+		try {
+			messages.display(await e.json());
+		} catch (ex) {
+			showMessage(ex, messages, message);
+		}
 		return true;
 	} else {
 		console.error(e);

webpage/src/routes/models/edit/+page.svelte

@@ -25,7 +25,7 @@
 </script>
 
 <script lang="ts">
-	import { onMount } from 'svelte';
+	import { onDestroy, onMount } from 'svelte';
 
 	import BaseModelInfo from './BaseModelInfo.svelte';
 	import DeleteModel from './DeleteModel.svelte';
@@ -50,16 +50,22 @@
 
 	let id: string | undefined = $state();
 
+	let re_query_timeout: number | undefined = undefined;
+
 	async function getModel() {
+		if (re_query_timeout) {
+			clearTimeout(re_query_timeout);
+			re_query_timeout = undefined;
+		}
 		try {
 			let temp_model: Model = await get(`models/edit?id=${id}`);
 
 			if ([3, 7, 6].includes(temp_model.status)) {
-				setTimeout(getModel, 2000);
+				re_query_timeout = setTimeout(getModel, 2000);
 			}
 
 			if (temp_model.status == 4) {
-				setTimeout(getModel, 5000);
+				re_query_timeout = setTimeout(getModel, 5000);
 
 				definitions = await get(`models/edit/definitions?id=${id}`);
 			}
@@ -108,6 +114,12 @@
 		}
 	}
 
+	onDestroy(() => {
+		if (re_query_timeout) {
+			clearTimeout(re_query_timeout);
+		}
+	});
+
 	// Auto reload after 2s when model.status 3,4
 </script>
 

webpage/src/routes/user-deleted/+page.svelte

@@ -0,0 +1,8 @@
+<h1>Your User has been deleted</h1>
+
+<style>
+	h1 {
+		text-align: center;
+		font-size: 40px;
+	}
+</style>

webpage/src/routes/user/info/+page.svelte

@@ -7,6 +7,7 @@
 	import { post } from 'src/lib/requests.svelte';
 	import MessageSimple, { type DisplayFn } from 'src/lib/MessageSimple.svelte';
 	import TokenTable from './TokenTable.svelte';
+	import DeleteUser from './DeleteUser.svelte';
 
 	onMount(() => {
 		if (!userStore.isLogin()) {
@@ -110,8 +111,8 @@
 				<button> Update </button>
 			</div>
 		</form>
-		<!-- TODO Delete -->
 		<TokenTable />
+		<DeleteUser />
 	</div>
 </div>
 

webpage/src/routes/user/info/DeleteUser.svelte

@@ -0,0 +1,34 @@
+<script lang="ts">
+	import { goto } from '$app/navigation';
+	import { notificationStore } from 'src/lib/NotificationsStore.svelte';
+	import { rdelete, showMessage } from 'src/lib/requests.svelte';
+	import { userStore } from 'src/routes/UserStore.svelte';
+
+	let data = $state({ password: '' });
+
+	async function deleteUser() {
+		if (!userStore.user) {
+			return;
+		}
+		try {
+			await rdelete('user/delete', {
+				id: userStore.user?.id,
+				password: data.password
+			});
+			userStore.user = undefined;
+			goto('/user-deleted');
+		} catch (e) {
+			showMessage(e, notificationStore);
+		}
+	}
+</script>
+
+<form class="danger-bg" on:submit|preventDefault={deleteUser}>
+	<h2 class="no-top-margin">Delete user</h2>
+	Deleting the user will delete all your data stored in the service including the images.
+	<fieldset>
+		To confirm please type your password
+		<input name="password" type="password" required bind:value={data.password} />
+	</fieldset>
+	<button> Delete </button>
+</form>

webpage/src/styles/app.css

@@ -13,6 +13,7 @@
 	--warning: #fca311;
 	--warning-transparent: #fca31144;
 
+	--danger-ligther: #ffe0de;
 	--danger: #ff8282;
 	--danger-transparent: #ff828244;
 
@@ -171,3 +172,20 @@ a.button {
 	background-color: var(--danger-transparent);
 	border: 1px solid var(--danger);
 }
+
+.box {
+	padding: 30px;
+	margin: 20px 0;
+	border-radius: 10px;
+	box-shadow: 2px 5px 8px 2px #66666655;
+}
+
+.no-top-margin {
+	margin-top: 0px;
+}
+
+.box.danger-bg,
+form.danger-bg {
+	background-color: var(--danger-transparent);
+	border: 1px solid var(--danger);
+}