CREATE TABLE "accounts" (
    "id" INTEGER PRIMARY KEY AUTOINCREMENT
);

CREATE TABLE "mailboxes" (
    "account" INTEGER NOT NULL,
    "name" TEXT NOT NULL,
    "uidvalidity" INTEGER NOT NULL,

    PRIMARY KEY ("account", "name")
);

CREATE TABLE "messages" (
    -- "id" TEXT PRIMARY KEY,
    "id" INTEGER PRIMARY KEY,
    "mailbox_acct" TEXT NOT NULL,
    "mailbox" TEXT NOT NULL,
    "uid" INTEGER NOT NULL,
    "date" DATETIME,
    "subject" TEXT,
    "from" JSON,
    "sender" JSON,
    "reply_to" JSON,
    "to" JSON,
    "cc" JSON,
    "bcc" JSON,
    "in_reply_to" TEXT,
    "message_id" TEXT,
    "mbox" BLOB,

    FOREIGN KEY ("mailbox_acct") REFERENCES "mailboxes" ("account"),
    FOREIGN KEY ("mailbox") REFERENCES "mailboxes" ("name")
);