Backend for filters

backend/db/filters.go

@@ -0,0 +1,76 @@
+package db
+
+import "git.bhasher.com/bhasher/focus/backend/types"
+
+func CreateFilter(filter types.Filter) (int, error) {
+	res, err := db.Exec("INSERT INTO filters (view_id, tag_id, filter_type, option_id) VALUES (?, ?, ?, ?)", filter.ViewID, filter.TagID, filter.FilterType, filter.OptionID)
+	if err != nil {
+		return 0, err
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return 0, err
+	}
+
+	return int(id), nil
+}
+
+func GetViewFilters(viewID int) ([]types.Filter, error) {
+	rows, err := db.Query("SELECT * FROM filters WHERE view_id = ?", viewID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var filters []types.Filter
+	for rows.Next() {
+		var f types.Filter
+		if err := rows.Scan(&f.ID, &f.ViewID, &f.TagID, &f.FilterType, &f.OptionID); err != nil {
+			return nil, err
+		}
+
+		filters = append(filters, f)
+	}
+
+	if err = rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return filters, nil
+}
+
+func GetFilter(id int) (*types.Filter, error) {
+	rows, err := db.Query("SELECT * FROM filters WHERE id = ?", id)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	if !rows.Next() {
+		return nil, nil
+	}
+
+	var f types.Filter
+	rows.Scan(&f.ID, &f.ViewID, &f.TagID, &f.FilterType, &f.OptionID)
+
+	return &f, nil
+}
+
+func UpdateFilter(f types.Filter) (int64, error) {
+	res, err := db.Exec("UPDATE filters SET view_id = ?, tag_id = ?, filter_type = ?, option_id = ? WHERE id = ?", f.ViewID, f.TagID, f.FilterType, f.OptionID, f.ID)
+	if err != nil {
+		return 0, err
+	}
+
+	return res.RowsAffected()
+}
+
+func DeleteFilter(id int) (int64, error) {
+	res, err := db.Exec("DELETE FROM filters WHERE id = ?", id)
+	if err != nil {
+		return 0, err
+	}
+
+	return res.RowsAffected()
+}

backend/db/main.go

@@ -67,6 +67,17 @@ func InitDB(driver string, connStr string) error {
 			FOREIGN KEY(secondary_tag_id) REFERENCES tags(id)
 		);
 
+		CREATE TABLE IF NOT EXISTS filters (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			view_id INTEGER NOT NULL,
+			tag_id INTEGER NOT NULL,
+			filter_type INTEGER NOT NULL,
+			option_id INTEGER,
+			FOREIGN KEY(view_id) REFERENCES views(id),
+			FOREIGN KEY(tag_id) REFERENCES tags(id),
+			FOREIGN KEY(option_id) REFERENCES tagsoptions(id)
+		);
+
 		INSERT INTO schema_version (version)
 		SELECT ? WHERE NOT EXISTS (SELECT 1 FROM schema_version);
     `, DB_VERSION)

backend/db/views.go

@@ -74,3 +74,13 @@ func DeleteView(id int) (int64, error) {
 
 	return res.RowsAffected()
 }
+
+func ExistView(id int) (bool, error) {
+	var count int
+	err := db.QueryRow("SELECT COUNT(*) FROM views WHERE id = ?", id).Scan(&count)
+	if err != nil {
+		return false, err
+	}
+
+	return count > 0, nil
+}

backend/handlers/filters.go

@@ -0,0 +1,131 @@
+package handlers
+
+import (
+	"fmt"
+	"strconv"
+
+	"git.bhasher.com/bhasher/focus/backend/db"
+	"git.bhasher.com/bhasher/focus/backend/types"
+
+	"github.com/gofiber/fiber/v2"
+)
+
+func filtersRouter(router fiber.Router) error {
+	router.Post("/", CreateFilter)
+	router.Get("/:id", GetFilter)
+	router.Put("/:id", UpdateFilter)
+	router.Delete("/:id", DeleteFilter)
+
+	return nil
+}
+
+func CreateFilter(c *fiber.Ctx) error {
+	filter := types.Filter{}
+	if err := c.BodyParser(&filter); err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Cannot parse request",
+			"trace": fmt.Sprint(err),
+		})
+	}
+
+	exist, err := db.ExistView(filter.ViewID)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Error finding view",
+			"trace": fmt.Sprint(err),
+		})
+	}
+	if !exist {
+		return c.Status(fiber.StatusNotFound).JSON(fiber.Map{"error": "View not found"})
+	}
+
+	id, err := db.CreateFilter(filter)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Cannot create filter",
+			"trace": fmt.Sprint(err),
+		})
+	}
+
+	return c.Status(fiber.StatusCreated).JSON(fiber.Map{
+		"id": id,
+	})
+}
+
+func GetFilter(c *fiber.Ctx) error {
+	id, err := strconv.Atoi(c.Params("id"))
+	if err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "Invalid filter ID"})
+	}
+
+	filter, err := db.GetFilter(id)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Cannot retrieve filter",
+			"trace": fmt.Sprint(err),
+		})
+	}
+	if filter == nil {
+		return c.SendStatus(fiber.StatusNotFound)
+	}
+
+	return c.Status(fiber.StatusOK).JSON(filter)
+}
+
+func UpdateFilter(c *fiber.Ctx) error {
+	id, err := strconv.Atoi(c.Params("id"))
+	if err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "Invalid filter ID"})
+	}
+
+	filter := types.Filter{ID: id}
+	if err := c.BodyParser(&filter); err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{
+			"error": "Cannot parse request",
+			"trace": fmt.Sprint(err),
+		})
+	}
+	exist, err := db.ExistView(filter.ViewID)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Error finding view",
+			"trace": fmt.Sprint(err),
+		})
+	}
+	if !exist {
+		return c.Status(fiber.StatusNotFound).JSON(fiber.Map{"error": "View not found"})
+	}
+
+	count, err := db.UpdateFilter(filter)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Cannot update filter",
+			"trace": fmt.Sprint(err),
+		})
+	}
+	if count == 0 {
+		return c.SendStatus(fiber.StatusNotFound)
+	}
+
+	return c.SendStatus(fiber.StatusNoContent)
+}
+
+func DeleteFilter(c *fiber.Ctx) error {
+	id, err := strconv.Atoi(c.Params("id"))
+	if err != nil {
+		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "Invalid filter ID"})
+	}
+
+	count, err := db.DeleteFilter(id)
+	if err != nil {
+		return c.Status(fiber.StatusInternalServerError).JSON(fiber.Map{
+			"error": "Cannot delete filter",
+			"trace": fmt.Sprint(err),
+		})
+	}
+	if count == 0 {
+		return c.SendStatus(fiber.StatusNotFound)
+	}
+
+	return c.SendStatus(fiber.StatusNoContent)
+}

backend/handlers/main.go

@@ -11,6 +11,7 @@ func v1Router(router fiber.Router) error {
 	cardsRouter(router.Group("/cards"))
 	tagsRouter(router.Group("/tags"))
 	viewsRouter(router.Group("/views"))
+	filtersRouter(router.Group("/filters"))
 	return nil
 }
 

backend/handlers/views.go

@@ -14,7 +14,6 @@ func viewsRouter(router fiber.Router) error {
 	router.Get("/:id", GetView)
 	router.Put("/:id", UpdateView)
 	router.Delete("/:id", DeleteView)
-
 	return nil
 }
 

backend/types/filter.go

@@ -0,0 +1,9 @@
+package types
+
+type Filter struct {
+	ID 			int `json:"id"`
+	ViewID		int `json:"view_id"`
+	TagID		int `json:"tag_id"`
+	FilterType	int `json:"filter_type"`
+	OptionID	int `json:"option_id"`
+}