feat(store): open encrypted SQLite, schema v1, settings

internal/store/schema.go

@@ -0,0 +1,71 @@
+package store
+
+const schemaVersion = 1
+
+// schemaSQL is the full v1 schema. All statements are idempotent via IF NOT EXISTS.
+const schemaSQL = `
+CREATE TABLE IF NOT EXISTS settings (
+  key   TEXT PRIMARY KEY,
+  value TEXT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS accounts (
+  id                      INTEGER PRIMARY KEY AUTOINCREMENT,
+  name                    TEXT UNIQUE NOT NULL,
+  mode                    TEXT NOT NULL CHECK (mode IN ('RO','RW')),
+  imap_host               TEXT NOT NULL,
+  imap_port               INTEGER NOT NULL,
+  imap_security           TEXT NOT NULL CHECK (imap_security IN ('tls','starttls')),
+  smtp_host               TEXT,
+  smtp_port               INTEGER,
+  smtp_security           TEXT,
+  auth_type               TEXT NOT NULL CHECK (auth_type IN ('password','oauth2')),
+  username                TEXT NOT NULL,
+  enc_password            BLOB,
+  enc_oauth_client_id     BLOB,
+  enc_oauth_client_secret BLOB,
+  enc_oauth_refresh_token BLOB,
+  whitelist_in_enabled    INTEGER NOT NULL DEFAULT 0,
+  whitelist_out_enabled   INTEGER NOT NULL DEFAULT 0,
+  subject_regex           TEXT,
+  process_backlog         INTEGER NOT NULL DEFAULT 0
+);
+
+CREATE TABLE IF NOT EXISTS whitelist_in (
+  account_id INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+  address    TEXT NOT NULL,
+  PRIMARY KEY (account_id, address)
+);
+
+CREATE TABLE IF NOT EXISTS whitelist_out (
+  account_id INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+  address    TEXT NOT NULL,
+  PRIMARY KEY (account_id, address)
+);
+
+CREATE TABLE IF NOT EXISTS folder_state (
+  account_id  INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+  folder      TEXT NOT NULL,
+  uidvalidity INTEGER NOT NULL,
+  floor_uid   INTEGER NOT NULL,
+  PRIMARY KEY (account_id, folder)
+);
+
+CREATE TABLE IF NOT EXISTS acked (
+  account_id  INTEGER NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+  folder      TEXT NOT NULL,
+  uidvalidity INTEGER NOT NULL,
+  uid         INTEGER NOT NULL,
+  PRIMARY KEY (account_id, folder, uid)
+);
+
+CREATE TABLE IF NOT EXISTS audit_log (
+  id      INTEGER PRIMARY KEY AUTOINCREMENT,
+  ts      TEXT NOT NULL,
+  account TEXT NOT NULL,
+  action  TEXT NOT NULL,
+  target  TEXT NOT NULL,
+  result  TEXT NOT NULL,
+  reason  TEXT
+);
+`