loopdb: withdrawal table and queries

Author: hieblmi

loopdb/sqlc/migrations/000015_static_address_withdrawals.down.sql

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+DROP TABLE IF EXISTS withdrawals;
+DROP TABLE IF EXISTS withdrawal_deposits;

loopdb/sqlc/migrations/000015_static_address_withdrawals.up.sql

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+-- withdrawals stores finalized static address withdrawals.
+CREATE TABLE IF NOT EXISTS withdrawals (
+    -- id is the auto-incrementing primary key for a withdrawal.
+    id INTEGER PRIMARY KEY,
+
+    -- withdrawal_id is the unique identifier for the withdrawal.
+    withdrawal_id BLOB NOT NULL UNIQUE,
+
+    -- withdrawal_tx_id is the transaction tx id of the withdrawal.
+    withdrawal_tx_id TEXT UNIQUE,
+
+    -- total_deposit_amount is the total amount of the deposits in satoshis.
+    total_deposit_amount BIGINT NOT NULL,
+
+    -- withdrawn_amount is the total amount of the withdrawal. It amounts
+    -- to the total amount of the deposits minus the fees and optional change.
+    withdrawn_amount BIGINT,
+
+    -- change_amount is the optional change that the user selected.
+    change_amount BIGINT,
+
+    -- initiation_time is the creation of the withdrawal.
+    initiation_time TIMESTAMP NOT NULL,
+
+    -- confirmation_height is the block height at which the withdrawal was first
+    -- confirmed.
+    confirmation_height BIGINT
+);
+
+CREATE TABLE IF NOT EXISTS withdrawal_deposits (
+    -- id is the auto-incrementing primary key.
+    id INTEGER PRIMARY KEY,
+
+    -- withdrawal_id references the withdrawals table.
+    withdrawal_id BLOB NOT NULL REFERENCES withdrawals(withdrawal_id),
+
+    -- deposit_id references the deposits table.
+    deposit_id BLOB NOT NULL REFERENCES deposits(deposit_id),
+
+    -- Ensure that each deposit is used only once per withdrawal.
+    UNIQUE(deposit_id, withdrawal_id)
+);

loopdb/sqlc/models.go

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+-- name: CreateWithdrawal :exec
+INSERT INTO withdrawals (
+    withdrawal_id,
+    total_deposit_amount,
+    initiation_time
+) VALUES (
+     $1, $2, $3
+ );
+
+-- name: CreateWithdrawalDeposit :exec
+INSERT INTO withdrawal_deposits (
+    withdrawal_id,
+    deposit_id
+) VALUES (
+     $1, $2
+);
+
+-- name: GetWithdrawalIDByDepositID :one
+SELECT withdrawal_id
+FROM withdrawal_deposits
+WHERE deposit_id = $1;
+
+-- name: UpdateWithdrawal :exec
+UPDATE withdrawals
+SET
+    withdrawal_tx_id = $2,
+    withdrawn_amount = $3,
+    change_amount = $4,
+    confirmation_height = $5
+WHERE
+    withdrawal_id = $1;
+
+-- name: GetWithdrawalDeposits :many
+SELECT
+    deposit_id
+FROM
+    withdrawal_deposits
+WHERE
+    withdrawal_id = $1;
+
+-- name: GetAllWithdrawals :many
+SELECT
+    *
+FROM
+    withdrawals
+ORDER BY
+    initiation_time DESC;