-- CreateTable
CREATE TABLE "folders" (
    "id" TEXT NOT NULL PRIMARY KEY,
    "name" TEXT NOT NULL,
    "userId" TEXT NOT NULL,
    "tagId" TEXT,
    "parentId" TEXT,
    "order" INTEGER NOT NULL DEFAULT 0,
    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updatedAt" DATETIME NOT NULL,
    CONSTRAINT "folders_userId_fkey" FOREIGN KEY ("userId") REFERENCES "users" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT "folders_tagId_fkey" FOREIGN KEY ("tagId") REFERENCES "tags" ("id") ON DELETE SET NULL ON UPDATE CASCADE,
    CONSTRAINT "folders_parentId_fkey" FOREIGN KEY ("parentId") REFERENCES "folders" ("id") ON DELETE CASCADE ON UPDATE CASCADE
);

-- AlterTable Note - Add folderId column
ALTER TABLE "Note" ADD COLUMN "folderId" TEXT;

-- CreateIndex
CREATE INDEX "folders_userId_idx" ON "folders"("userId");
CREATE INDEX "folders_parentId_idx" ON "folders"("parentId");