-- AtlasOS - Calypso
-- Add ZFS Pools Table
-- Version: 4.0
-- Note: This migration adds the zfs_pools table that was added to migration 002
--       but may not have been applied if migration 002 was run before the table was added

-- ZFS pools table
CREATE TABLE IF NOT EXISTS zfs_pools (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    name VARCHAR(255) NOT NULL UNIQUE,
    description TEXT,
    raid_level VARCHAR(50) NOT NULL, -- stripe, mirror, raidz, raidz2, raidz3
    disks TEXT[] NOT NULL, -- array of device paths
    size_bytes BIGINT NOT NULL,
    used_bytes BIGINT NOT NULL DEFAULT 0,
    compression VARCHAR(50) NOT NULL DEFAULT 'lz4', -- off, lz4, zstd, gzip
    deduplication BOOLEAN NOT NULL DEFAULT false,
    auto_expand BOOLEAN NOT NULL DEFAULT false,
    scrub_interval INTEGER NOT NULL DEFAULT 30, -- days
    is_active BOOLEAN NOT NULL DEFAULT true,
    health_status VARCHAR(50) NOT NULL DEFAULT 'online', -- online, degraded, faulted, offline
    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMP NOT NULL DEFAULT NOW(),
    created_by UUID REFERENCES users(id)
);

-- Create index on name for faster lookups
CREATE INDEX IF NOT EXISTS idx_zfs_pools_name ON zfs_pools(name);
CREATE INDEX IF NOT EXISTS idx_zfs_pools_created_by ON zfs_pools(created_by);
CREATE INDEX IF NOT EXISTS idx_zfs_pools_health_status ON zfs_pools(health_status);