-- Dual-mode identity, operations, jobs, artifacts, tool packages, grants.
-- shared computers may have many bots; do NOT add UNIQUE(bots.computer_id).

ALTER TABLE computers
    ADD COLUMN IF NOT EXISTS generation INTEGER NOT NULL DEFAULT 1,
    ADD COLUMN IF NOT EXISTS computer_epoch BIGINT NOT NULL DEFAULT 0,
    ADD COLUMN IF NOT EXISTS display_backend TEXT NOT NULL DEFAULT 'xvfb_x11vnc';

CREATE TABLE IF NOT EXISTS computer_operations (
    id TEXT PRIMARY KEY,
    computer_id TEXT NOT NULL REFERENCES computers (id) ON DELETE CASCADE,
    bot_id TEXT NOT NULL,
    run_id TEXT,
    payload_hash TEXT NOT NULL,
    status TEXT NOT NULL,
    result TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE UNIQUE INDEX IF NOT EXISTS computer_operations_id_hash
    ON computer_operations (id, payload_hash);

CREATE TABLE IF NOT EXISTS computer_jobs (
    id TEXT PRIMARY KEY,
    computer_id TEXT NOT NULL REFERENCES computers (id) ON DELETE CASCADE,
    generation INTEGER NOT NULL DEFAULT 1,
    bot_id TEXT NOT NULL,
    status TEXT NOT NULL,
    argv JSONB NOT NULL DEFAULT '[]'::jsonb,
    pin_version TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

ALTER TABLE computer_jobs ADD COLUMN IF NOT EXISTS pin_version TEXT;

CREATE TABLE IF NOT EXISTS computer_artifacts (
    id TEXT PRIMARY KEY,
    computer_id TEXT NOT NULL REFERENCES computers (id) ON DELETE CASCADE,
    bot_id TEXT NOT NULL,
    relative_path TEXT NOT NULL,
    sha256 TEXT NOT NULL,
    size BIGINT NOT NULL DEFAULT 0,
    operation_id TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS tool_packages (
    id TEXT PRIMARY KEY,
    computer_id TEXT NOT NULL REFERENCES computers (id) ON DELETE CASCADE,
    package_id TEXT NOT NULL,
    version TEXT NOT NULL,
    sha256 TEXT NOT NULL,
    status TEXT NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    UNIQUE (computer_id, package_id, version)
);

CREATE TABLE IF NOT EXISTS tool_bindings (
    id TEXT PRIMARY KEY,
    package_row_id TEXT NOT NULL REFERENCES tool_packages (id) ON DELETE CASCADE,
    bot_id TEXT NOT NULL,
    account_id TEXT,
    status TEXT NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
    UNIQUE (package_row_id, bot_id)
);

CREATE TABLE IF NOT EXISTS tool_grants (
    id TEXT PRIMARY KEY,
    bot_id TEXT NOT NULL REFERENCES bots (id) ON DELETE CASCADE,
    capability TEXT NOT NULL,
    account_ref TEXT,
    expires_at TIMESTAMPTZ,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);

CREATE TABLE IF NOT EXISTS operation_outbox (
    id TEXT PRIMARY KEY,
    event_key TEXT NOT NULL UNIQUE,
    payload JSONB NOT NULL,
    delivered BOOLEAN NOT NULL DEFAULT FALSE,
    created_at TIMESTAMPTZ NOT NULL DEFAULT now()
);