CREATE TABLE IF NOT EXISTS "archive_entry_index" (
    "volume_name" TEXT NOT NULL,
    "entry_name" TEXT NOT NULL,
    "local_header_offset_plain" INTEGER NOT NULL,
    "data_offset_plain" INTEGER NOT NULL,
    "compressed_size" INTEGER NOT NULL,
    "uncompressed_size" INTEGER NOT NULL,
    "compression_method" TEXT NOT NULL,
    "crc32" TEXT NOT NULL,
    PRIMARY KEY ("volume_name", "entry_name")
);

CREATE INDEX IF NOT EXISTS "archive_entry_index_volume_offset"
ON "archive_entry_index" ("volume_name", "data_offset_plain");

CREATE TABLE IF NOT EXISTS "volume_crypto_cache" (
    "volume_name" TEXT PRIMARY KEY,
    "stream_format" TEXT NULL,
    "header_probe_bytes" INTEGER NULL,
    "kdf_iterations" INTEGER NULL,
    "salt_hex" TEXT NULL,
    "iv_hex" TEXT NULL,
    "cipher" TEXT NULL,
    "integrity" TEXT NULL
);

CREATE TABLE IF NOT EXISTS "volume_scan_inventory" (
    "volume_name" TEXT PRIMARY KEY,
    "remote_type" TEXT NULL,
    "remote_size" INTEGER NULL,
    "remote_hash" TEXT NULL,
    "plain_zip_size" INTEGER NULL,
    "entry_count" INTEGER NULL,
    "scan_status" TEXT NOT NULL,
    "scanned_at" TEXT NOT NULL,
    "error_code" TEXT NULL
);

CREATE TABLE IF NOT EXISTS "enhancement_meta" (
    "id" INTEGER PRIMARY KEY CHECK ("id" = 1),
    "schema_version" TEXT NOT NULL,
    "generator_version" TEXT NOT NULL,
    "created_at" TEXT NOT NULL,
    "source_layout" TEXT NOT NULL,
    "blocksize" TEXT NULL,
    "blockhash" TEXT NULL,
    "filehash" TEXT NULL
);