fix: add missing migrations (for mysql database)

Signed-off-by: Naian <[email protected]>

.github/workflows/mediator.pr.yml

@@ -51,7 +51,7 @@ jobs:
       - name: Install prerequisites (sqlx)
         run: cargo install sqlx-cli
       - name: Setup database
-        run: DATABASE_URL=${MYSQL_URL} sqlx migrate run
+        run: DATABASE_URL=${MYSQL_URL} sqlx migrate run --source mediator/migrations
       - name: "Run mediator integration tests"
         run: |
           RUST_TEST_THREADS=1 cargo test --package mediator;

mediator/migrations/20230810132416_3-part-data-(accounts,_recipients,_messages).sql

@@ -0,0 +1,54 @@
+-- Add migration script here
+
+CREATE TABLE IF NOT EXISTS accounts (
+    -- metadata (total accounts registered until this account's creation)
+    seq_num SERIAL,
+    -- sequential time ordered uuid
+    -- https://dev.mysql.com/blog-archive/mysql-8-0-uuid-support/
+    account_id BINARY(16) DEFAULT (UUID_TO_BIN(UUID(),true)) NOT NULL UNIQUE,
+    -- for display purpose
+    account_name CHAR(36) GENERATED ALWAYS AS (BIN_TO_UUID(account_id)) VIRTUAL  NOT NULL,
+    -- mediator facing pubkey
+    -- UNIQUE constraint automatically creates index for fast unique checking; is reused for scanning
+    auth_pubkey VARCHAR(64) NOT NULL UNIQUE,
+    -- key used to sign messages to aries peer
+    our_signing_key VARCHAR(64) NOT NULL,
+    -- their complete did_doc, including routing keys etc (useful for wrapping messages in encryption envelope) 
+    did_doc JSON NOT NULL,
+    PRIMARY KEY(account_id)
+);
+
+
+CREATE TABLE IF NOT EXISTS recipients (
+    seq_num SERIAL,
+    account_id BINARY(16) NOT NULL,
+    recipient_key VARCHAR(64) NOT NULL UNIQUE,
+    -- UNIQUE constraint creates index to implement fast unique checking
+    -- so explicitly creating index is not needed (and will lead to duplicate index)
+    -- If removing UNIQUE above then activate the commented index below
+    -- INDEX(recipient_key)
+    PRIMARY KEY (account_id, recipient_key),
+    FOREIGN KEY (account_id) REFERENCES accounts(account_id)
+        ON DELETE CASCADE
+);
+
+
+CREATE TABLE IF NOT EXISTS messages (
+    seq_num SERIAL,
+    account_id BINARY(16) NOT NULL,
+    -- Allow nullable so that recipient_key remove key-updates are possible
+    -- without also removing associated messages
+    recipient_key VARCHAR(64) NULL, 
+    INDEX(account_id, recipient_key),
+    message_idb BINARY(16) DEFAULT (UUID_TO_BIN(UUID(),true)) NOT NULL UNIQUE,
+    -- Readable message id (for identifying message over wire)
+    message_id CHAR(36) GENERATED ALWAYS AS (BIN_TO_UUID(message_idb)) VIRTUAL,
+    -- 16MiB limit (medium blob)
+    message_data MEDIUMBLOB NOT NULL,
+    PRIMARY KEY (account_id, message_idb),
+    FOREIGN KEY (account_id) REFERENCES accounts(account_id)
+        ON DELETE CASCADE,
+    FOREIGN KEY (recipient_key) REFERENCES recipients(recipient_key)
+        ON DELETE SET NULL
+);
+