-- Workspace assets: local archive for creative outputs from Picture Agent,
-- ComfyUI Agent, Video Agent and ComfyUI workspaces.

CREATE TABLE IF NOT EXISTS workspace_assets (
    id BIGSERIAL PRIMARY KEY,
    public_id TEXT NOT NULL UNIQUE,
    user_id BIGINT,
    source TEXT NOT NULL,
    kind TEXT NOT NULL,
    title TEXT,
    prompt TEXT,
    model TEXT,
    status TEXT NOT NULL DEFAULT 'completed',
    mime_type TEXT,
    file_name TEXT,
    file_path TEXT,
    remote_url TEXT,
    thumbnail_path TEXT,
    size_bytes BIGINT NOT NULL DEFAULT 0,
    metadata TEXT NOT NULL DEFAULT '{}',
    created_at TEXT NOT NULL DEFAULT (CURRENT_TIMESTAMP::TEXT),
    updated_at TEXT NOT NULL DEFAULT (CURRENT_TIMESTAMP::TEXT),
    deleted_at TEXT,
    FOREIGN KEY(user_id) REFERENCES users(id) ON DELETE SET NULL
);

CREATE INDEX IF NOT EXISTS idx_workspace_assets_user_created
    ON workspace_assets(user_id, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_workspace_assets_source_created
    ON workspace_assets(source, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_workspace_assets_kind_created
    ON workspace_assets(kind, created_at DESC);
CREATE INDEX IF NOT EXISTS idx_workspace_assets_deleted
    ON workspace_assets(deleted_at);