-- CreateTable
CREATE TABLE "Group" (
    "id" TEXT NOT NULL,
    "name" TEXT NOT NULL,

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

-- CreateTable
CREATE TABLE "Participant" (
    "id" TEXT NOT NULL,
    "name" TEXT NOT NULL,
    "groupId" TEXT NOT NULL,

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

-- CreateTable
CREATE TABLE "Expense" (
    "id" TEXT NOT NULL,
    "title" TEXT NOT NULL,
    "amount" DECIMAL(65,30) NOT NULL,
    "paidById" TEXT NOT NULL,

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

-- CreateTable
CREATE TABLE "ExpensePaidFor" (
    "expenseId" TEXT NOT NULL,
    "participantId" TEXT NOT NULL,

    CONSTRAINT "ExpensePaidFor_pkey" PRIMARY KEY ("expenseId","participantId")
);

-- AddForeignKey
ALTER TABLE "Participant" ADD CONSTRAINT "Participant_groupId_fkey" FOREIGN KEY ("groupId") REFERENCES "Group"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "Expense" ADD CONSTRAINT "Expense_paidById_fkey" FOREIGN KEY ("paidById") REFERENCES "Participant"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "ExpensePaidFor" ADD CONSTRAINT "ExpensePaidFor_expenseId_fkey" FOREIGN KEY ("expenseId") REFERENCES "Expense"("id") ON DELETE RESTRICT ON UPDATE CASCADE;

-- AddForeignKey
ALTER TABLE "ExpensePaidFor" ADD CONSTRAINT "ExpensePaidFor_participantId_fkey" FOREIGN KEY ("participantId") REFERENCES "Participant"("id") ON DELETE RESTRICT ON UPDATE CASCADE;