ff2784b862
Existing site databases created before the primary/backup data connections feature lack the backup_configuration and failover_retry_count columns. Added TryAddColumnAsync migration that runs on startup after table creation.
603 lines
25 KiB
C#
603 lines
25 KiB
C#
using Microsoft.Data.Sqlite;
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using Microsoft.Extensions.Logging;
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namespace ScadaLink.SiteRuntime.Persistence;
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/// <summary>
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/// Direct SQLite persistence for site-local deployment state.
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/// Stores deployed instance configurations (as JSON) and static attribute overrides.
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/// This is NOT EF Core — uses Microsoft.Data.Sqlite directly for lightweight site storage.
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/// </summary>
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public class SiteStorageService
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{
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private readonly string _connectionString;
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private readonly ILogger<SiteStorageService> _logger;
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public SiteStorageService(string connectionString, ILogger<SiteStorageService> logger)
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{
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_connectionString = connectionString;
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_logger = logger;
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}
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/// <summary>
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/// Creates the SQLite tables if they do not exist.
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/// Called once on site startup.
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/// </summary>
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public async Task InitializeAsync()
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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CREATE TABLE IF NOT EXISTS deployed_configurations (
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instance_unique_name TEXT PRIMARY KEY,
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config_json TEXT NOT NULL,
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deployment_id TEXT NOT NULL,
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revision_hash TEXT NOT NULL,
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is_enabled INTEGER NOT NULL DEFAULT 1,
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deployed_at TEXT NOT NULL
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);
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CREATE TABLE IF NOT EXISTS static_attribute_overrides (
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instance_unique_name TEXT NOT NULL,
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attribute_name TEXT NOT NULL,
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override_value TEXT NOT NULL,
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updated_at TEXT NOT NULL,
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PRIMARY KEY (instance_unique_name, attribute_name)
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);
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CREATE TABLE IF NOT EXISTS shared_scripts (
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name TEXT PRIMARY KEY,
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code TEXT NOT NULL,
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parameter_definitions TEXT,
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return_definition TEXT,
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updated_at TEXT NOT NULL
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);
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CREATE TABLE IF NOT EXISTS external_systems (
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name TEXT PRIMARY KEY,
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endpoint_url TEXT NOT NULL,
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auth_type TEXT NOT NULL,
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auth_configuration TEXT,
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method_definitions TEXT,
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updated_at TEXT NOT NULL
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);
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CREATE TABLE IF NOT EXISTS database_connections (
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name TEXT PRIMARY KEY,
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connection_string TEXT NOT NULL,
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max_retries INTEGER NOT NULL DEFAULT 3,
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retry_delay_ms INTEGER NOT NULL DEFAULT 1000,
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updated_at TEXT NOT NULL
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);
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CREATE TABLE IF NOT EXISTS notification_lists (
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name TEXT PRIMARY KEY,
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recipient_emails TEXT NOT NULL,
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updated_at TEXT NOT NULL
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);
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CREATE TABLE IF NOT EXISTS data_connection_definitions (
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name TEXT PRIMARY KEY,
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protocol TEXT NOT NULL,
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configuration TEXT,
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backup_configuration TEXT,
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failover_retry_count INTEGER NOT NULL DEFAULT 3,
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updated_at TEXT NOT NULL
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);
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CREATE TABLE IF NOT EXISTS smtp_configurations (
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name TEXT PRIMARY KEY,
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server TEXT NOT NULL,
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port INTEGER NOT NULL,
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auth_mode TEXT NOT NULL,
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from_address TEXT NOT NULL,
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username TEXT,
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password TEXT,
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oauth_config TEXT,
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updated_at TEXT NOT NULL
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);
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";
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await command.ExecuteNonQueryAsync();
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// Schema migrations — add columns that may not exist on older databases
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await MigrateSchemaAsync(connection);
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_logger.LogInformation("Site SQLite storage initialized at {ConnectionString}", _connectionString);
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}
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private async Task MigrateSchemaAsync(SqliteConnection connection)
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{
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// Add backup_configuration and failover_retry_count to data_connection_definitions
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// (added in primary/backup data connections feature)
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await TryAddColumnAsync(connection, "data_connection_definitions", "backup_configuration", "TEXT");
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await TryAddColumnAsync(connection, "data_connection_definitions", "failover_retry_count", "INTEGER NOT NULL DEFAULT 3");
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}
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private async Task TryAddColumnAsync(SqliteConnection connection, string table, string column, string type)
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{
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try
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{
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await using var cmd = connection.CreateCommand();
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cmd.CommandText = $"ALTER TABLE {table} ADD COLUMN {column} {type}";
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await cmd.ExecuteNonQueryAsync();
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_logger.LogInformation("Migrated: added column {Column} to {Table}", column, table);
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}
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catch (SqliteException ex) when (ex.Message.Contains("duplicate column"))
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{
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// Column already exists — no action needed
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}
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}
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// ── Deployed Configuration CRUD ──
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/// <summary>
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/// Returns all deployed instance configurations from SQLite.
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/// </summary>
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public async Task<List<DeployedInstance>> GetAllDeployedConfigsAsync()
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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SELECT instance_unique_name, config_json, deployment_id, revision_hash, is_enabled, deployed_at
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FROM deployed_configurations";
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var results = new List<DeployedInstance>();
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await using var reader = await command.ExecuteReaderAsync();
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while (await reader.ReadAsync())
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{
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results.Add(new DeployedInstance
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{
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InstanceUniqueName = reader.GetString(0),
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ConfigJson = reader.GetString(1),
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DeploymentId = reader.GetString(2),
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RevisionHash = reader.GetString(3),
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IsEnabled = reader.GetInt64(4) != 0,
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DeployedAt = reader.GetString(5)
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});
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}
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return results;
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}
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/// <summary>
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/// Stores or updates a deployed instance configuration. Uses UPSERT semantics.
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/// </summary>
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public async Task StoreDeployedConfigAsync(
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string instanceName,
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string configJson,
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string deploymentId,
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string revisionHash,
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bool isEnabled)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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INSERT INTO deployed_configurations (instance_unique_name, config_json, deployment_id, revision_hash, is_enabled, deployed_at)
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VALUES (@name, @json, @depId, @hash, @enabled, @deployedAt)
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ON CONFLICT(instance_unique_name) DO UPDATE SET
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config_json = excluded.config_json,
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deployment_id = excluded.deployment_id,
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revision_hash = excluded.revision_hash,
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is_enabled = excluded.is_enabled,
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deployed_at = excluded.deployed_at";
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command.Parameters.AddWithValue("@name", instanceName);
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command.Parameters.AddWithValue("@json", configJson);
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command.Parameters.AddWithValue("@depId", deploymentId);
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command.Parameters.AddWithValue("@hash", revisionHash);
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command.Parameters.AddWithValue("@enabled", isEnabled ? 1 : 0);
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command.Parameters.AddWithValue("@deployedAt", DateTimeOffset.UtcNow.ToString("O"));
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await command.ExecuteNonQueryAsync();
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_logger.LogDebug("Stored deployed config for {Instance}, deploymentId={DeploymentId}", instanceName, deploymentId);
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}
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/// <summary>
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/// Removes a deployed instance configuration and its static overrides.
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/// </summary>
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public async Task RemoveDeployedConfigAsync(string instanceName)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var transaction = await connection.BeginTransactionAsync();
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await using (var cmd = connection.CreateCommand())
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{
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cmd.Transaction = (SqliteTransaction)transaction;
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cmd.CommandText = "DELETE FROM static_attribute_overrides WHERE instance_unique_name = @name";
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cmd.Parameters.AddWithValue("@name", instanceName);
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await cmd.ExecuteNonQueryAsync();
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}
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await using (var cmd = connection.CreateCommand())
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{
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cmd.Transaction = (SqliteTransaction)transaction;
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cmd.CommandText = "DELETE FROM deployed_configurations WHERE instance_unique_name = @name";
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cmd.Parameters.AddWithValue("@name", instanceName);
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await cmd.ExecuteNonQueryAsync();
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}
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await transaction.CommitAsync();
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_logger.LogInformation("Removed deployed config and overrides for {Instance}", instanceName);
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}
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/// <summary>
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/// Sets the enabled/disabled state of a deployed instance.
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/// </summary>
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public async Task SetInstanceEnabledAsync(string instanceName, bool isEnabled)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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UPDATE deployed_configurations
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SET is_enabled = @enabled
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WHERE instance_unique_name = @name";
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command.Parameters.AddWithValue("@enabled", isEnabled ? 1 : 0);
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command.Parameters.AddWithValue("@name", instanceName);
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var rows = await command.ExecuteNonQueryAsync();
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if (rows == 0)
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{
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_logger.LogWarning("SetInstanceEnabled: instance {Instance} not found", instanceName);
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}
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}
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// ── Static Attribute Override CRUD ──
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/// <summary>
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/// Returns all static attribute overrides for an instance.
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/// </summary>
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public async Task<Dictionary<string, string>> GetStaticOverridesAsync(string instanceName)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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SELECT attribute_name, override_value
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FROM static_attribute_overrides
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WHERE instance_unique_name = @name";
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command.Parameters.AddWithValue("@name", instanceName);
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var results = new Dictionary<string, string>();
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await using var reader = await command.ExecuteReaderAsync();
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while (await reader.ReadAsync())
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{
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results[reader.GetString(0)] = reader.GetString(1);
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}
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return results;
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}
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/// <summary>
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/// Sets or updates a single static attribute override for an instance.
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/// </summary>
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public async Task SetStaticOverrideAsync(string instanceName, string attributeName, string value)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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INSERT INTO static_attribute_overrides (instance_unique_name, attribute_name, override_value, updated_at)
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VALUES (@name, @attr, @val, @updatedAt)
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ON CONFLICT(instance_unique_name, attribute_name) DO UPDATE SET
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override_value = excluded.override_value,
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updated_at = excluded.updated_at";
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command.Parameters.AddWithValue("@name", instanceName);
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command.Parameters.AddWithValue("@attr", attributeName);
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command.Parameters.AddWithValue("@val", value);
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command.Parameters.AddWithValue("@updatedAt", DateTimeOffset.UtcNow.ToString("O"));
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await command.ExecuteNonQueryAsync();
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}
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/// <summary>
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/// Clears all static attribute overrides for an instance.
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/// Called on redeployment to reset overrides.
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/// </summary>
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public async Task ClearStaticOverridesAsync(string instanceName)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = "DELETE FROM static_attribute_overrides WHERE instance_unique_name = @name";
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command.Parameters.AddWithValue("@name", instanceName);
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await command.ExecuteNonQueryAsync();
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_logger.LogDebug("Cleared static overrides for {Instance}", instanceName);
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}
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// ── WP-33: Shared Script CRUD ──
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/// <summary>
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/// Stores or updates a shared script. Uses UPSERT semantics.
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/// </summary>
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public async Task StoreSharedScriptAsync(string name, string code, string? parameterDefs, string? returnDef)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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INSERT INTO shared_scripts (name, code, parameter_definitions, return_definition, updated_at)
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VALUES (@name, @code, @paramDefs, @returnDef, @updatedAt)
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ON CONFLICT(name) DO UPDATE SET
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code = excluded.code,
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parameter_definitions = excluded.parameter_definitions,
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return_definition = excluded.return_definition,
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updated_at = excluded.updated_at";
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command.Parameters.AddWithValue("@name", name);
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command.Parameters.AddWithValue("@code", code);
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command.Parameters.AddWithValue("@paramDefs", (object?)parameterDefs ?? DBNull.Value);
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command.Parameters.AddWithValue("@returnDef", (object?)returnDef ?? DBNull.Value);
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command.Parameters.AddWithValue("@updatedAt", DateTimeOffset.UtcNow.ToString("O"));
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await command.ExecuteNonQueryAsync();
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_logger.LogDebug("Stored shared script '{Name}'", name);
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}
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/// <summary>
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/// Returns all stored shared scripts.
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/// </summary>
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public async Task<List<StoredSharedScript>> GetAllSharedScriptsAsync()
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = "SELECT name, code, parameter_definitions, return_definition FROM shared_scripts";
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var results = new List<StoredSharedScript>();
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await using var reader = await command.ExecuteReaderAsync();
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while (await reader.ReadAsync())
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{
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results.Add(new StoredSharedScript
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{
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Name = reader.GetString(0),
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Code = reader.GetString(1),
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ParameterDefinitions = reader.IsDBNull(2) ? null : reader.GetString(2),
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ReturnDefinition = reader.IsDBNull(3) ? null : reader.GetString(3)
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});
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}
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return results;
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}
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// ── WP-33: External System CRUD ──
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/// <summary>
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/// Stores or updates an external system definition.
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/// </summary>
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public async Task StoreExternalSystemAsync(
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string name, string endpointUrl, string authType, string? authConfig, string? methodDefs)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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INSERT INTO external_systems (name, endpoint_url, auth_type, auth_configuration, method_definitions, updated_at)
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VALUES (@name, @url, @authType, @authConfig, @methodDefs, @updatedAt)
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ON CONFLICT(name) DO UPDATE SET
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endpoint_url = excluded.endpoint_url,
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auth_type = excluded.auth_type,
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auth_configuration = excluded.auth_configuration,
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method_definitions = excluded.method_definitions,
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updated_at = excluded.updated_at";
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command.Parameters.AddWithValue("@name", name);
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command.Parameters.AddWithValue("@url", endpointUrl);
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command.Parameters.AddWithValue("@authType", authType);
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command.Parameters.AddWithValue("@authConfig", (object?)authConfig ?? DBNull.Value);
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command.Parameters.AddWithValue("@methodDefs", (object?)methodDefs ?? DBNull.Value);
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command.Parameters.AddWithValue("@updatedAt", DateTimeOffset.UtcNow.ToString("O"));
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await command.ExecuteNonQueryAsync();
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}
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// ── WP-33: Database Connection CRUD ──
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/// <summary>
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/// Stores or updates a database connection definition.
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/// </summary>
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public async Task StoreDatabaseConnectionAsync(
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string name, string connectionString, int maxRetries, TimeSpan retryDelay)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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INSERT INTO database_connections (name, connection_string, max_retries, retry_delay_ms, updated_at)
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VALUES (@name, @connStr, @maxRetries, @retryDelayMs, @updatedAt)
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ON CONFLICT(name) DO UPDATE SET
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connection_string = excluded.connection_string,
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max_retries = excluded.max_retries,
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retry_delay_ms = excluded.retry_delay_ms,
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updated_at = excluded.updated_at";
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command.Parameters.AddWithValue("@name", name);
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command.Parameters.AddWithValue("@connStr", connectionString);
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command.Parameters.AddWithValue("@maxRetries", maxRetries);
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command.Parameters.AddWithValue("@retryDelayMs", (long)retryDelay.TotalMilliseconds);
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command.Parameters.AddWithValue("@updatedAt", DateTimeOffset.UtcNow.ToString("O"));
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await command.ExecuteNonQueryAsync();
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}
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// ── WP-33: Notification List CRUD ──
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/// <summary>
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/// Stores or updates a notification list.
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/// </summary>
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public async Task StoreNotificationListAsync(string name, IReadOnlyList<string> recipientEmails)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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INSERT INTO notification_lists (name, recipient_emails, updated_at)
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VALUES (@name, @emails, @updatedAt)
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ON CONFLICT(name) DO UPDATE SET
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recipient_emails = excluded.recipient_emails,
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updated_at = excluded.updated_at";
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command.Parameters.AddWithValue("@name", name);
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command.Parameters.AddWithValue("@emails", System.Text.Json.JsonSerializer.Serialize(recipientEmails));
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command.Parameters.AddWithValue("@updatedAt", DateTimeOffset.UtcNow.ToString("O"));
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await command.ExecuteNonQueryAsync();
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}
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// ── WP-33: SMTP Configuration CRUD ──
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/// <summary>
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/// Stores or updates an SMTP configuration.
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/// </summary>
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public async Task StoreSmtpConfigurationAsync(
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string name, string server, int port, string authMode, string fromAddress,
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string? username, string? password, string? oauthConfig)
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{
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await using var connection = new SqliteConnection(_connectionString);
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await connection.OpenAsync();
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await using var command = connection.CreateCommand();
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command.CommandText = @"
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INSERT INTO smtp_configurations (name, server, port, auth_mode, from_address, username, password, oauth_config, updated_at)
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VALUES (@name, @server, @port, @authMode, @fromAddress, @username, @password, @oauthConfig, @updatedAt)
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ON CONFLICT(name) DO UPDATE SET
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server = excluded.server,
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port = excluded.port,
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auth_mode = excluded.auth_mode,
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from_address = excluded.from_address,
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username = excluded.username,
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password = excluded.password,
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oauth_config = excluded.oauth_config,
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updated_at = excluded.updated_at";
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command.Parameters.AddWithValue("@name", name);
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command.Parameters.AddWithValue("@server", server);
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command.Parameters.AddWithValue("@port", port);
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command.Parameters.AddWithValue("@authMode", authMode);
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command.Parameters.AddWithValue("@fromAddress", fromAddress);
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command.Parameters.AddWithValue("@username", (object?)username ?? DBNull.Value);
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command.Parameters.AddWithValue("@password", (object?)password ?? DBNull.Value);
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command.Parameters.AddWithValue("@oauthConfig", (object?)oauthConfig ?? DBNull.Value);
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command.Parameters.AddWithValue("@updatedAt", DateTimeOffset.UtcNow.ToString("O"));
|
|
|
|
await command.ExecuteNonQueryAsync();
|
|
}
|
|
|
|
// ── Data Connection Definition CRUD ──
|
|
|
|
/// <summary>
|
|
/// Stores or updates a data connection definition (OPC UA endpoint, etc.).
|
|
/// </summary>
|
|
public async Task StoreDataConnectionDefinitionAsync(
|
|
string name, string protocol, string? configJson, string? backupConfigJson = null, int failoverRetryCount = 3)
|
|
{
|
|
await using var connection = new SqliteConnection(_connectionString);
|
|
await connection.OpenAsync();
|
|
|
|
await using var command = connection.CreateCommand();
|
|
command.CommandText = @"
|
|
INSERT INTO data_connection_definitions (name, protocol, configuration, backup_configuration, failover_retry_count, updated_at)
|
|
VALUES (@name, @protocol, @config, @backupConfig, @failoverRetryCount, @updatedAt)
|
|
ON CONFLICT(name) DO UPDATE SET
|
|
protocol = excluded.protocol,
|
|
configuration = excluded.configuration,
|
|
backup_configuration = excluded.backup_configuration,
|
|
failover_retry_count = excluded.failover_retry_count,
|
|
updated_at = excluded.updated_at";
|
|
|
|
command.Parameters.AddWithValue("@name", name);
|
|
command.Parameters.AddWithValue("@protocol", protocol);
|
|
command.Parameters.AddWithValue("@config", (object?)configJson ?? DBNull.Value);
|
|
command.Parameters.AddWithValue("@backupConfig", (object?)backupConfigJson ?? DBNull.Value);
|
|
command.Parameters.AddWithValue("@failoverRetryCount", failoverRetryCount);
|
|
command.Parameters.AddWithValue("@updatedAt", DateTimeOffset.UtcNow.ToString("O"));
|
|
|
|
await command.ExecuteNonQueryAsync();
|
|
_logger.LogDebug("Stored data connection definition '{Name}' (protocol={Protocol})", name, protocol);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns all stored data connection definitions.
|
|
/// </summary>
|
|
public async Task<List<StoredDataConnectionDefinition>> GetAllDataConnectionDefinitionsAsync()
|
|
{
|
|
await using var connection = new SqliteConnection(_connectionString);
|
|
await connection.OpenAsync();
|
|
|
|
await using var command = connection.CreateCommand();
|
|
command.CommandText = "SELECT name, protocol, configuration, backup_configuration, failover_retry_count FROM data_connection_definitions";
|
|
|
|
var results = new List<StoredDataConnectionDefinition>();
|
|
await using var reader = await command.ExecuteReaderAsync();
|
|
while (await reader.ReadAsync())
|
|
{
|
|
results.Add(new StoredDataConnectionDefinition
|
|
{
|
|
Name = reader.GetString(0),
|
|
Protocol = reader.GetString(1),
|
|
ConfigurationJson = reader.IsDBNull(2) ? null : reader.GetString(2),
|
|
BackupConfigurationJson = reader.IsDBNull(3) ? null : reader.GetString(3),
|
|
FailoverRetryCount = reader.GetInt32(4)
|
|
});
|
|
}
|
|
|
|
return results;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Represents a deployed instance configuration as stored in SQLite.
|
|
/// </summary>
|
|
public class DeployedInstance
|
|
{
|
|
public string InstanceUniqueName { get; init; } = string.Empty;
|
|
public string ConfigJson { get; init; } = string.Empty;
|
|
public string DeploymentId { get; init; } = string.Empty;
|
|
public string RevisionHash { get; init; } = string.Empty;
|
|
public bool IsEnabled { get; init; }
|
|
public string DeployedAt { get; init; } = string.Empty;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Represents a shared script stored locally in SQLite (WP-33).
|
|
/// </summary>
|
|
public class StoredSharedScript
|
|
{
|
|
public string Name { get; init; } = string.Empty;
|
|
public string Code { get; init; } = string.Empty;
|
|
public string? ParameterDefinitions { get; init; }
|
|
public string? ReturnDefinition { get; init; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Represents a data connection definition stored locally in SQLite.
|
|
/// </summary>
|
|
public class StoredDataConnectionDefinition
|
|
{
|
|
public string Name { get; init; } = string.Empty;
|
|
public string Protocol { get; init; } = string.Empty;
|
|
public string? ConfigurationJson { get; init; }
|
|
public string? BackupConfigurationJson { get; init; }
|
|
public int FailoverRetryCount { get; init; } = 3;
|
|
}
|