-- CreateTable
CREATE TABLE "Project" (
    "id" TEXT NOT NULL PRIMARY KEY,
    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updatedAt" DATETIME NOT NULL,
    "kind" TEXT NOT NULL DEFAULT 'folder',
    "title" TEXT NOT NULL,
    "userId" TEXT,
    CONSTRAINT "Project_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User" ("id") ON DELETE CASCADE ON UPDATE CASCADE
);

-- CreateTable
CREATE TABLE "ProjectItem" (
    "id" TEXT NOT NULL PRIMARY KEY,
    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "projectId" TEXT NOT NULL,
    "chatId" TEXT,
    "searchId" TEXT,
    CONSTRAINT "ProjectItem_projectId_fkey" FOREIGN KEY ("projectId") REFERENCES "Project" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT "ProjectItem_chatId_fkey" FOREIGN KEY ("chatId") REFERENCES "Chat" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT "ProjectItem_searchId_fkey" FOREIGN KEY ("searchId") REFERENCES "Search" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
    CONSTRAINT "ProjectItem_one_target_check" CHECK (("chatId" IS NOT NULL AND "searchId" IS NULL) OR ("chatId" IS NULL AND "searchId" IS NOT NULL))
);

-- CreateIndex
CREATE INDEX "Project_kind_idx" ON "Project"("kind");

-- CreateIndex
CREATE INDEX "Project_userId_idx" ON "Project"("userId");

-- CreateIndex
CREATE UNIQUE INDEX "ProjectItem_projectId_chatId_key" ON "ProjectItem"("projectId", "chatId");

-- CreateIndex
CREATE UNIQUE INDEX "ProjectItem_projectId_searchId_key" ON "ProjectItem"("projectId", "searchId");

-- CreateIndex
CREATE INDEX "ProjectItem_projectId_createdAt_idx" ON "ProjectItem"("projectId", "createdAt");

-- CreateIndex
CREATE INDEX "ProjectItem_chatId_idx" ON "ProjectItem"("chatId");

-- CreateIndex
CREATE INDEX "ProjectItem_searchId_idx" ON "ProjectItem"("searchId");