-- AI 接入 (MCP): 个人授权 token, 与用户绑定, 独立命名
CREATE TABLE "McpToken" (
    "id" SERIAL NOT NULL,
    "userId" INTEGER NOT NULL,
    "name" VARCHAR(32) NOT NULL,
    "prefix" VARCHAR(16) NOT NULL,
    "tokenHash" VARCHAR(64) NOT NULL,
    "lastUsedAt" TIMESTAMP(3),
    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
    "updatedAt" TIMESTAMP(3) NOT NULL,

    CONSTRAINT "McpToken_pkey" PRIMARY KEY ("id")
);

CREATE UNIQUE INDEX "McpToken_tokenHash_key" ON "McpToken"("tokenHash");
CREATE UNIQUE INDEX "McpToken_userId_name_key" ON "McpToken"("userId", "name");
CREATE INDEX "McpToken_userId_idx" ON "McpToken"("userId");

ALTER TABLE "McpToken" ADD CONSTRAINT "McpToken_userId_fkey"
    FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;