Refactor server code (#407)

internal/web/handlers/gist/fork.go

@@ -0,0 +1,86 @@
+package gist
+
+import (
+	"errors"
+	"github.com/google/uuid"
+	"github.com/thomiceli/opengist/internal/db"
+	"github.com/thomiceli/opengist/internal/web/context"
+	"github.com/thomiceli/opengist/internal/web/handlers"
+	"gorm.io/gorm"
+	"strings"
+)
+
+func Fork(ctx *context.Context) error {
+	gist := ctx.GetData("gist").(*db.Gist)
+	currentUser := ctx.User
+
+	alreadyForked, err := gist.GetForkParent(currentUser)
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return ctx.ErrorRes(500, "Error checking if gist is already forked", err)
+	}
+
+	if gist.User.ID == currentUser.ID {
+		ctx.AddFlash(ctx.Tr("flash.gist.fork-own-gist"), "error")
+		return ctx.RedirectTo("/" + gist.User.Username + "/" + gist.Identifier())
+	}
+
+	if alreadyForked.ID != 0 {
+		return ctx.RedirectTo("/" + alreadyForked.User.Username + "/" + alreadyForked.Identifier())
+	}
+
+	uuidGist, err := uuid.NewRandom()
+	if err != nil {
+		return ctx.ErrorRes(500, "Error creating an UUID", err)
+	}
+
+	newGist := &db.Gist{
+		Uuid:            strings.Replace(uuidGist.String(), "-", "", -1),
+		Title:           gist.Title,
+		Preview:         gist.Preview,
+		PreviewFilename: gist.PreviewFilename,
+		Description:     gist.Description,
+		Private:         gist.Private,
+		UserID:          currentUser.ID,
+		ForkedID:        gist.ID,
+		NbFiles:         gist.NbFiles,
+	}
+
+	if err = newGist.CreateForked(); err != nil {
+		return ctx.ErrorRes(500, "Error forking the gist in database", err)
+	}
+
+	if err = gist.ForkClone(currentUser.Username, newGist.Uuid); err != nil {
+		return ctx.ErrorRes(500, "Error cloning the repository while forking", err)
+	}
+	if err = gist.IncrementForkCount(); err != nil {
+		return ctx.ErrorRes(500, "Error incrementing the fork count", err)
+	}
+
+	ctx.AddFlash(ctx.Tr("flash.gist.forked"), "success")
+
+	return ctx.RedirectTo("/" + currentUser.Username + "/" + newGist.Identifier())
+}
+
+func Forks(ctx *context.Context) error {
+	gist := ctx.GetData("gist").(*db.Gist)
+	pageInt := handlers.GetPage(ctx)
+
+	currentUser := ctx.User
+	var fromUserID uint = 0
+	if currentUser != nil {
+		fromUserID = currentUser.ID
+	}
+
+	forks, err := gist.GetForks(fromUserID, pageInt-1)
+	if err != nil {
+		return ctx.ErrorRes(500, "Error getting users who liked this gist", err)
+	}
+
+	if err = handlers.Paginate(ctx, forks, pageInt, 30, "forks", gist.User.Username+"/"+gist.Identifier()+"/forks", 2); err != nil {
+		return ctx.ErrorRes(404, ctx.Tr("error.page-not-found"), nil)
+	}
+
+	ctx.SetData("htmlTitle", ctx.TrH("gist.forks.for", gist.Title))
+	ctx.SetData("revision", "HEAD")
+	return ctx.Html("forks.html")
+}