byteball-sqlite-light.sql

CREATE TABLE units (
	unit CHAR(44) NOT NULL PRIMARY KEY, -- sha256 in base64
	creation_date timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
	version VARCHAR(3) NOT NULL DEFAULT '1.0',
	alt VARCHAR(3) NOT NULL DEFAULT '1',
	witness_list_unit CHAR(44) NULL,
	last_ball_unit CHAR(44) NULL,
	content_hash CHAR(44) NULL,
	headers_commission INT NOT NULL,
	payload_commission INT NOT NULL,
	is_free TINYINT NOT NULL DEFAULT 1,
	is_on_main_chain TINYINT NOT NULL DEFAULT 0,
	main_chain_index INT NULL, -- when it first appears
	latest_included_mc_index INT NULL, -- latest MC ball that is included in this ball (excluding itself)
	level INT NULL,
	witnessed_level INT NULL,
	is_stable TINYINT NOT NULL DEFAULT 0,
	sequence TEXT CHECK (sequence IN('good','temp-bad','final-bad')) NOT NULL DEFAULT 'good',
	best_parent_unit CHAR(44) NULL,
	FOREIGN KEY (best_parent_unit) REFERENCES units(unit)
);
CREATE INDEX byLB ON units(last_ball_unit);
CREATE INDEX byBestParent ON units(best_parent_unit);
CREATE INDEX byWL ON units(witness_list_unit);
CREATE INDEX byMainChain ON units(is_on_main_chain);
CREATE INDEX byMcIndex ON units(main_chain_index);
CREATE INDEX byLimci ON units(latest_included_mc_index);
CREATE INDEX byLevel ON units(level);
CREATE INDEX byFree ON units(is_free);
CREATE INDEX byStableMci ON units(is_stable, main_chain_index);


CREATE TABLE balls (
	ball CHAR(44) NOT NULL PRIMARY KEY, -- sha256 in base64
	creation_date timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
	unit CHAR(44) NOT NULL UNIQUE, -- sha256 in base64
--  count_witnesses TINYINT NOT NULL DEFAULT 0,
	count_paid_witnesses TINYINT NULL,
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX byCountPaidWitnesses ON balls(count_paid_witnesses);

CREATE TABLE skiplist_units (
	unit CHAR(44) NOT NULL,
	skiplist_unit CHAR(44) NOT NULL, -- only for MC units with MCI divisible by 10: previous MC units divisible by 10
	PRIMARY KEY (unit, skiplist_unit),
	FOREIGN KEY (unit) REFERENCES units(unit),
	FOREIGN KEY (skiplist_unit) REFERENCES units(unit)
);
CREATE INDEX bySkiplistUnit ON skiplist_units(skiplist_unit);



-- must be sorted by parent_unit
CREATE TABLE parenthoods (
	child_unit CHAR(44) NOT NULL,
	parent_unit CHAR(44) NOT NULL,
	PRIMARY KEY (parent_unit, child_unit)
);
CREATE INDEX byChildUnit ON parenthoods(child_unit);


CREATE TABLE definitions (
	definition_chash CHAR(32) NOT NULL PRIMARY KEY,
	definition TEXT NOT NULL,
	has_references TINYINT NOT NULL
);


-- current list of all known from-addresses
CREATE TABLE addresses (
	address CHAR(32) NOT NULL PRIMARY KEY,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);


-- must be sorted by address
CREATE TABLE unit_authors (
	unit CHAR(44) NOT NULL,
	address CHAR(32) NOT NULL,
	definition_chash CHAR(32) NULL, -- only with 1st ball from this address, and with next ball after definition change
	_mci INT NULL,
	PRIMARY KEY (unit, address),
	FOREIGN KEY (unit) REFERENCES units(unit),
	FOREIGN KEY (definition_chash) REFERENCES definitions(definition_chash)
);
CREATE INDEX byDefinitionChash ON unit_authors(definition_chash);
CREATE INDEX unitAuthorsIndexByAddress ON unit_authors(address);
CREATE INDEX unitAuthorsIndexByAddressMci ON unit_authors(address, _mci);


CREATE TABLE authentifiers (
	unit CHAR(44) NOT NULL,
	address CHAR(32) NOT NULL,
	path VARCHAR(40) NOT NULL,
	authentifier VARCHAR(4096) NOT NULL,
	PRIMARY KEY (unit, address, path),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX authentifiersIndexByAddress ON authentifiers(address);

-- must be sorted by address
CREATE TABLE unit_witnesses (
	unit CHAR(44) NOT NULL,
	address VARCHAR(32) NOT NULL,
	PRIMARY KEY (unit, address),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX byAddress ON unit_witnesses(address);

CREATE TABLE witness_list_hashes (
	witness_list_unit CHAR(44) NOT NULL PRIMARY KEY,
	witness_list_hash CHAR(44) NOT NULL UNIQUE,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	FOREIGN KEY (witness_list_unit) REFERENCES units(unit)
);


-- if this ball wins headers commission from at least one of the included balls, how it is distributed
-- required if more than one author
-- if one author, all commission goes to the author by default
CREATE TABLE earned_headers_commission_recipients (
	unit CHAR(44) NOT NULL,
	address VARCHAR(32) NOT NULL,
	earned_headers_commission_share INT NOT NULL, -- percentage
	PRIMARY KEY (unit, address),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX earnedbyAddress ON earned_headers_commission_recipients(address);


CREATE TABLE messages (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	app VARCHAR(30) NOT NULL,
	payload_location TEXT CHECK (payload_location IN ('inline','uri','none')) NOT NULL,
	payload_hash VARCHAR(44) NOT NULL,
	payload TEXT NULL,
	payload_uri_hash VARCHAR(44) NULL,
	payload_uri VARCHAR(500) NULL,
	PRIMARY KEY (unit, message_index),
	FOREIGN KEY (unit) REFERENCES units(unit)
);

-- must be sorted by spend_proof
CREATE TABLE spend_proofs (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	spend_proof_index TINYINT NOT NULL,
	spend_proof CHAR(44) NOT NULL,
	address CHAR(32) NOT NULL,
	PRIMARY KEY (unit, message_index, spend_proof_index),
	UNIQUE  (spend_proof, unit),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX spendProofsIndexByAddress ON spend_proofs(address);


-- -------------------------
-- Specific message types


CREATE TABLE address_definition_changes (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	address CHAR(32) NOT NULL,
	definition_chash VARCHAR(32) NOT NULL, -- might not be defined in definitions yet (almost always, it is not defined)
	PRIMARY KEY (unit, message_index),
	UNIQUE  (address, unit),
	FOREIGN KEY (unit) REFERENCES units(unit)
);


CREATE TABLE data_feeds (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	feed_name VARCHAR(64) NOT NULL,
--    type ENUM('string', 'number') NOT NULL,
	`value` VARCHAR(64) NULL,
	`int_value` BIGINT NULL,
	PRIMARY KEY (unit, feed_name),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX byNameStringValue ON data_feeds(feed_name, `value`);
CREATE INDEX byNameIntValue ON data_feeds(feed_name, `int_value`);

CREATE TABLE polls (
	unit CHAR(44) NOT NULL PRIMARY KEY,
	message_index TINYINT NOT NULL,
	question VARCHAR(4096) NOT NULL,
	FOREIGN KEY (unit) REFERENCES units(unit)
);

CREATE TABLE poll_choices (
	unit CHAR(44) NOT NULL,
	choice_index TINYINT NOT NULL,
	choice VARCHAR(32) NOT NULL,
	PRIMARY KEY (unit, choice_index),
	UNIQUE  (unit, choice),
	FOREIGN KEY (unit) REFERENCES polls(unit)
);

CREATE TABLE votes (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	poll_unit CHAR(44) NOT NULL,
	choice VARCHAR(32) NOT NULL,
	PRIMARY KEY (unit, message_index),
	UNIQUE  (unit, choice),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX votesIndexByPollUnitChoice ON votes(poll_unit, choice);


CREATE TABLE attestations (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	attestor_address VARCHAR(32) NOT NULL,
	address VARCHAR(32) NOT NULL,
--	name VARCHAR(44) NOT NULL,
	PRIMARY KEY (unit, message_index),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX attestationsByAddress ON attestations(address);
CREATE INDEX attestationsIndexByAttestorAddress ON attestations(attestor_address);

CREATE TABLE assets (
	unit CHAR(44) NOT NULL PRIMARY KEY,
	message_index TINYINT NOT NULL,
	cap BIGINT NULL,
	is_private TINYINT NOT NULL,
	is_transferrable TINYINT NOT NULL,
	auto_destroy TINYINT NOT NULL,
	fixed_denominations TINYINT NOT NULL,
	issued_by_definer_only TINYINT NOT NULL,
	cosigned_by_definer TINYINT NOT NULL,
	spender_attested TINYINT NOT NULL, -- must subsequently publish and update the list of trusted attestors
	issue_condition TEXT NULL,
	transfer_condition TEXT NULL,
	FOREIGN KEY (unit) REFERENCES units(unit)
);

CREATE TABLE asset_denominations (
	asset CHAR(44) NOT NULL,
	denomination INT NOT NULL,
	count_coins BIGINT NULL,
	max_issued_serial_number BIGINT NOT NULL DEFAULT 0,
	PRIMARY KEY (asset, denomination),
	FOREIGN KEY (asset) REFERENCES assets(unit)
);

CREATE TABLE asset_attestors (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	asset CHAR(44) NOT NULL, -- in the initial attestor list: same as unit 
	attestor_address CHAR(32) NOT NULL,
	PRIMARY KEY (unit, message_index),
	UNIQUE (asset, attestor_address, unit),
	FOREIGN KEY (unit) REFERENCES units(unit)
);


-- -------------------------
-- Payments

CREATE TABLE inputs (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	input_index TINYINT NOT NULL,
	asset CHAR(44) NULL,
	denomination INT NOT NULL DEFAULT 1,
	is_unique TINYINT NULL DEFAULT 1,
	type TEXT CHECK (type IN('transfer','headers_commission','witnessing','issue')) NOT NULL,
	src_unit CHAR(44) NULL, -- transfer
	src_message_index TINYINT NULL, -- transfer
	src_output_index TINYINT NULL, -- transfer
	from_main_chain_index INT NULL, -- witnessing/hc
	to_main_chain_index INT NULL, -- witnessing/hc
	serial_number BIGINT NULL, -- issue
	amount BIGINT NULL, -- issue
	address CHAR(32)  NULL, -- in light we allow NULL because address is copied from previous output which might not be known to light client
	PRIMARY KEY (unit, message_index, input_index),
	UNIQUE  (src_unit, src_message_index, src_output_index, is_unique), -- UNIQUE guarantees there'll be no double spend for type=transfer
	UNIQUE  (type, from_main_chain_index, address, is_unique), -- UNIQUE guarantees there'll be no double spend for type=hc/witnessing
	UNIQUE  (asset, denomination, serial_number, address, is_unique), -- UNIQUE guarantees there'll be no double issue
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX inputsIndexByAddress ON inputs(address);
CREATE INDEX inputsIndexByAddressTypeToMci ON inputs(address, type, to_main_chain_index);
CREATE INDEX inputsIndexByAssetType ON inputs(asset, type);


CREATE TABLE outputs (
	output_id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	output_index TINYINT NOT NULL,
	asset CHAR(44) NULL,
	denomination INT NOT NULL DEFAULT 1,
	address VARCHAR(32) NULL,  -- NULL if hidden by output_hash
	amount BIGINT NOT NULL,
	blinding CHAR(16) NULL,
	output_hash CHAR(44) NULL,
	is_serial TINYINT NULL, -- NULL if not stable yet
	is_spent TINYINT NOT NULL DEFAULT 0,
	UNIQUE (unit, message_index, output_index),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX dobyAddressSpent ON outputs(address, is_spent);
CREATE INDEX outputsIndexByAsset ON outputs(asset);


-- ------------
-- Commissions

-- updated immediately after main chain is updated
CREATE TABLE headers_commission_contributions (
	unit CHAR(44) NOT NULL, -- child unit that receives (and optionally redistributes) commission from parent units
	address CHAR(32) NOT NULL, -- address of the commission receiver: author of child unit or address named in earned_headers_commission_recipients
	amount BIGINT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (unit, address),
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX hccbyAddress ON headers_commission_contributions(address);

CREATE TABLE headers_commission_outputs (
	main_chain_index INT NOT NULL,
	address CHAR(32) NOT NULL, -- address of the commission receiver
	amount BIGINT NOT NULL,
	is_spent TINYINT NOT NULL DEFAULT 0,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (main_chain_index, address)
);
-- CREATE INDEX hcobyAddressSpent ON headers_commission_outputs(address, is_spent);
CREATE UNIQUE INDEX hcobyAddressMci ON headers_commission_outputs(address, main_chain_index);
CREATE UNIQUE INDEX hcobyAddressSpentMci ON headers_commission_outputs(address, is_spent, main_chain_index);

CREATE TABLE paid_witness_events (
	unit CHAR(44) NOT NULL,
	address CHAR(32) NOT NULL, -- witness address
--    witnessed_in_ball CHAR(44) NOT NULL, -- if expired, MC ball next after expiry. Or NULL?
	delay TINYINT NULL, -- NULL if expired
	PRIMARY KEY (unit, address),
	FOREIGN KEY (unit) REFERENCES units(unit),
	FOREIGN KEY (address) REFERENCES addresses(address)
);
CREATE INDEX pweIndexByAddress ON paid_witness_events(address);


CREATE TABLE witnessing_outputs (
	main_chain_index INT NOT NULL,
	address CHAR(32) NOT NULL,
	amount BIGINT NOT NULL,
	is_spent TINYINT NOT NULL DEFAULT 0,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (main_chain_index, address),
	FOREIGN KEY (address) REFERENCES addresses(address)
);
-- CREATE INDEX byWitnessAddressSpent ON witnessing_outputs(address, is_spent);
CREATE UNIQUE INDEX byWitnessAddressMci ON witnessing_outputs(address, main_chain_index);
CREATE UNIQUE INDEX byWitnessAddressSpentMci ON witnessing_outputs(address, is_spent, main_chain_index);


-- ---------------------------------------
-- Networking

CREATE TABLE dependencies (
	unit CHAR(44) NOT NULL,
	depends_on_unit CHAR(44) NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	UNIQUE (depends_on_unit, unit)
);
CREATE INDEX depbyUnit ON dependencies(unit);

CREATE TABLE unhandled_joints (
	unit CHAR(44) NOT NULL PRIMARY KEY,
	peer VARCHAR(100) NOT NULL,
	json TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE archived_joints (
	unit CHAR(44) NOT NULL PRIMARY KEY,
	reason TEXT CHECK (reason IN('uncovered', 'voided')) NOT NULL,
--    is_retrievable TINYINT NOT NULL,
	json TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);


CREATE TABLE known_bad_joints (
	joint CHAR(44) NULL UNIQUE,
	unit CHAR(44) NULL UNIQUE,
	json TEXT NOT NULL,
	error TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE joints (
	unit CHAR(44) NOT NULL PRIMARY KEY,
	json TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE unhandled_private_payments (
	unit CHAR(44) NOT NULL,
	message_index TINYINT NOT NULL,
	output_index TINYINT NOT NULL,
	json TEXT NOT NULL,
	peer VARCHAR(100) NOT NULL,
	linked TINYINT NOT NULL DEFAULT 0,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (unit, message_index, output_index)
);

-- ------------------
-- Catching up

CREATE TABLE hash_tree_balls (
	ball_index INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, -- in increasing level order
	ball CHAR(44) NOT NULL UNIQUE,
	unit CHAR(44) NOT NULL UNIQUE
);

CREATE TABLE catchup_chain_balls (
	member_index INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT, -- in increasing level order
	ball CHAR(44) NOT NULL UNIQUE
);


-- ------------------------
-- Peers

CREATE TABLE peer_hosts (
	peer_host VARCHAR(100) NOT NULL PRIMARY KEY, -- domain or IP
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	count_new_good_joints INT NOT NULL DEFAULT 0,
	count_invalid_joints INT NOT NULL DEFAULT 0,
	count_nonserial_joints INT NOT NULL DEFAULT 0
);

CREATE TABLE peers (
	peer VARCHAR(100) NOT NULL PRIMARY KEY, -- wss:// address
	peer_host VARCHAR(100) NOT NULL, -- domain or IP
	learnt_from_peer_host VARCHAR(100) NULL, -- domain or IP
	is_self TINYINT NOT NULL DEFAULT 0,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	FOREIGN KEY (learnt_from_peer_host) REFERENCES peer_hosts(peer_host),
	FOREIGN KEY (peer_host) REFERENCES peer_hosts(peer_host)
);
CREATE INDEX peersIndexByPeerHost ON peers(peer_host);
CREATE INDEX peersIndexByLearntHost ON peers(learnt_from_peer_host);

-- INSERT INTO peer_hosts (peer_host) VALUES('127.0.0.1');
-- INSERT INTO peers (peer_host, peer) VALUES('127.0.0.1', 'ws://127.0.0.1:8081');

CREATE TABLE peer_events (
	peer_host VARCHAR(100) NOT NULL, -- domain or IP
	event_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	event TEXT CHECK (event IN('new_good', 'invalid', 'nonserial', 'known_good', 'known_bad')) NOT NULL,
	FOREIGN KEY (peer_host) REFERENCES peer_hosts(peer_host)
);
CREATE INDEX peerEventsIndexByPeerHost ON peer_events(peer_host);

-- self advertised urls
-- only inbound peers can advertise their urls
CREATE TABLE peer_host_urls (
	peer_host VARCHAR(100) NOT NULL, -- IP
	url VARCHAR(100) NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	is_active TINYINT NULL DEFAULT 1,
	revocation_date TIMESTAMP NULL,
	UNIQUE  (peer_host, is_active),
	FOREIGN KEY (peer_host) REFERENCES peer_hosts(peer_host)
);






-- -----------------------
-- wallet tables

-- wallets composed of BIP44 keys, the keys live on different devices, each device knows each other's extended public key
CREATE TABLE wallets (
	wallet CHAR(44) NOT NULL PRIMARY KEY,
	account INT NOT NULL,
	definition_template TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	full_approval_date TIMESTAMP NULL,
	ready_date TIMESTAMP NULL -- when all members notified me that they saw the wallet fully approved
);

-- BIP44 addresses. Coin type and account are fixed and stored in credentials in localstorage.
-- derivation path is m/44'/0'/account'/is_change/address_index
CREATE TABLE my_addresses (
	address CHAR(32) NOT NULL PRIMARY KEY,
	wallet CHAR(44) NOT NULL,
	is_change TINYINT NOT NULL,
	address_index INT NOT NULL,
	definition TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	UNIQUE (wallet, is_change, address_index),
	FOREIGN KEY (wallet) REFERENCES wallets(wallet)
);

CREATE TABLE my_witnesses (
	address VARCHAR(32) NOT NULL PRIMARY KEY
);


-- --------------------
-- hub tables

CREATE TABLE devices (
	device_address CHAR(33) NOT NULL PRIMARY KEY,
	pubkey CHAR(44) NOT NULL,
	temp_pubkey_package TEXT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE device_messages (
	message_hash CHAR(44) NOT NULL PRIMARY KEY,
	device_address CHAR(33) NOT NULL, -- the device this message is addressed to
	message TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	FOREIGN KEY (device_address) REFERENCES devices(device_address)
);
CREATE INDEX deviceMessagesIndexByDeviceAddress ON device_messages(device_address);


-- --------------------
-- hub client tables

CREATE TABLE correspondent_devices (
	device_address CHAR(33) NOT NULL PRIMARY KEY,
	name VARCHAR(100) NOT NULL,
	pubkey CHAR(44) NOT NULL,
	hub VARCHAR(100) NOT NULL, -- domain name of the hub this address is subscribed to
	is_confirmed TINYINT NOT NULL DEFAULT 0,
	is_indirect TINYINT NOT NULL DEFAULT 0,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE pairing_secrets (
	pairing_secret VARCHAR(40) NOT NULL PRIMARY KEY,
	is_permanent TINYINT NOT NULL DEFAULT 0,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	expiry_date TIMESTAMP NOT NULL
);

CREATE TABLE extended_pubkeys (
	wallet CHAR(44) NOT NULL, -- no FK because xpubkey may arrive earlier than the wallet is approved by the user and written to the db
	extended_pubkey CHAR(112) NULL, -- base58 encoded, see bip32, NULL while pending
	device_address CHAR(33) NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	approval_date TIMESTAMP NULL,
	member_ready_date TIMESTAMP NULL, -- when this member notified us that he has collected all member xpubkeys
	PRIMARY KEY (wallet, device_address)
	-- own address is not present in correspondents
--    FOREIGN KEY byDeviceAddress(device_address) REFERENCES correspondent_devices(device_address)
);

CREATE TABLE wallet_signing_paths (
	wallet CHAR(44) NOT NULL, -- no FK because xpubkey may arrive earlier than the wallet is approved by the user and written to the db
	signing_path VARCHAR(255) NULL, -- NULL if xpubkey arrived earlier than the wallet was approved by the user
	device_address CHAR(33) NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (wallet, signing_path),
	FOREIGN KEY (wallet) REFERENCES wallets(wallet)
	-- own address is not present in correspondents
--    FOREIGN KEY byDeviceAddress(device_address) REFERENCES correspondent_devices(device_address)
);


-- addresses composed of several other addresses (such as ["and", [["address", "ADDRESS1"], ["address", "ADDRESS2"]]]), 
-- member addresses live on different devices, member addresses themselves may be composed of several keys
CREATE TABLE shared_addresses (
	shared_address CHAR(32) NOT NULL PRIMARY KEY,
	definition TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE pending_shared_addresses (
	definition_template_chash CHAR(32) NOT NULL PRIMARY KEY,
	definition_template TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);

CREATE TABLE pending_shared_address_signing_paths (
	definition_template_chash CHAR(32) NOT NULL,
	device_address CHAR(33) NOT NULL,
	signing_path TEXT NOT NULL, -- path from root to member address
	address CHAR(32) NULL, -- member address
	device_addresses_by_relative_signing_paths TEXT NULL, -- json
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	approval_date TIMESTAMP NULL,
	PRIMARY KEY (definition_template_chash, signing_path),
	-- own address is not present in correspondents
--    FOREIGN KEY byDeviceAddress(device_address) REFERENCES correspondent_devices(device_address),
	FOREIGN KEY (definition_template_chash) REFERENCES pending_shared_addresses(definition_template_chash)
);

CREATE TABLE shared_address_signing_paths (
	shared_address CHAR(32) NOT NULL,
	signing_path VARCHAR(255) NULL, -- full path to signing key which is a member of the member address
	address CHAR(32) NOT NULL, -- member address
	member_signing_path VARCHAR(255) NULL, -- path to signing key from root of the member address
	device_address CHAR(33) NOT NULL, -- where this signing key lives or is reachable through
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (shared_address, signing_path),
	FOREIGN KEY (shared_address) REFERENCES shared_addresses(shared_address)
	-- own address is not present in correspondents
--    FOREIGN KEY byDeviceAddress(device_address) REFERENCES correspondent_devices(device_address)
);


CREATE TABLE outbox (
	message_hash CHAR(44) NOT NULL PRIMARY KEY,
	`to` CHAR(33) NOT NULL, -- the device this message is addressed to, no FK because of pairing case
	message TEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	last_error TEXT NULL
);


-- light clients

CREATE TABLE watched_light_addresses (
	peer VARCHAR(100) NOT NULL,
	address CHAR(32) NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (peer, address)
);
CREATE INDEX wlabyAddress ON watched_light_addresses(address);

CREATE INDEX "bySequence" ON "units" ("sequence");

DROP TABLE IF EXISTS paid_witness_events;

CREATE TABLE IF NOT EXISTS push_registrations (
    registrationId TEXT, 
    device_address TEXT NOT NULL, 
    PRIMARY KEY (device_address)
);

CREATE TABLE chat_messages (
	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
	correspondent_address CHAR(33) NOT NULL,
	message LONGTEXT NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	is_incoming INTEGER(1) NOT NULL,
	type CHAR(15) NOT NULL DEFAULT 'text',
	FOREIGN KEY (correspondent_address) REFERENCES correspondent_devices(device_address) ON DELETE CASCADE
);
CREATE INDEX chatMessagesIndexByDeviceAddress ON chat_messages(correspondent_address, id);
ALTER TABLE correspondent_devices ADD COLUMN my_record_pref INTEGER DEFAULT 1;
ALTER TABLE correspondent_devices ADD COLUMN peer_record_pref INTEGER DEFAULT 1;

CREATE TABLE watched_light_units (
	peer VARCHAR(100) NOT NULL,
	unit CHAR(44) NOT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	PRIMARY KEY (peer, unit)
);
CREATE INDEX wlabyUnit ON watched_light_units(unit);

CREATE TABLE bots (
	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
	rank INTEGER NOT NULL DEFAULT 0,
	name VARCHAR(100) NOT NULL UNIQUE,
	pairing_code VARCHAR(200) NOT NULL,
	description LONGTEXT NOT NULL
);

CREATE TABLE asset_metadata (
	asset CHAR(44) NOT NULL PRIMARY KEY,
	metadata_unit CHAR(44) NOT NULL,
	registry_address CHAR(32) NULL, -- filled only on the hub
	suffix VARCHAR(20) NULL, -- added only if the same name is registered by different registries for different assets, equal to registry name
	name VARCHAR(20) NULL,
	decimals TINYINT NULL,
	creation_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
	UNIQUE (name, registry_address),
	FOREIGN KEY (asset) REFERENCES assets(unit),
	FOREIGN KEY (metadata_unit) REFERENCES units(unit)
--	FOREIGN KEY (registry_address) REFERENCES addresses(address) -- addresses is not always filled on light
);

CREATE TABLE sent_mnemonics (
	unit CHAR(44) NOT NULL,
	address CHAR(32) NOT NULL,
	mnemonic VARCHAR(107) NOT NULL,
	textAddress VARCHAR(120) NOT NULL,
	FOREIGN KEY (unit) REFERENCES units(unit)
);
CREATE INDEX sentByAddress ON sent_mnemonics(address);
CREATE INDEX sentByUnit ON sent_mnemonics(unit);

PRAGMA user_version=16;