83 lines
2.6 KiB
Swift
83 lines
2.6 KiB
Swift
import Dependencies
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import DependenciesMacros
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import FileClient
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import Foundation
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public extension DependencyValues {
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/// Perform operations with configuration files.
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var configurationClient: ConfigurationClient {
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get { self[ConfigurationClient.self] }
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set { self[ConfigurationClient.self] = newValue }
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}
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}
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/// Handles interactions with configuration files.
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@DependencyClient
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public struct ConfigurationClient: Sendable {
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/// Find a configuration file in the given directory or in current working directory.
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public var find: @Sendable (URL?) async throws -> ConfigruationFile?
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/// Load a configuration file.
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public var load: @Sendable (ConfigruationFile) async throws -> Configuration
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/// Write a configuration file.
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public var write: @Sendable (Configuration, ConfigruationFile) async throws -> Void
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/// Find a configuration file and load it if found.
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public func findAndLoad(_ url: URL? = nil) async throws -> Configuration {
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guard let url = try await find(url) else {
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throw ConfigurationClientError.configurationNotFound
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}
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return try await load(url)
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}
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}
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extension ConfigurationClient: DependencyKey {
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public static let testValue: ConfigurationClient = Self()
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public static var liveValue: ConfigurationClient {
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.init(
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find: { try await findConfiguration($0) },
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load: { try await $0.load() ?? .mock },
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write: { try await $1.write($0) }
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)
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}
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}
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private func findConfiguration(_ url: URL?) async throws -> ConfigruationFile? {
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@Dependency(\.fileClient) var fileClient
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var url: URL! = url
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if url == nil {
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url = try await URL(filePath: fileClient.currentDirectory())
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}
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// Check if url is a valid configuration url.
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var configurationFile = ConfigruationFile(url: url)
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if let configurationFile { return configurationFile }
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guard try await fileClient.isDirectory(url.cleanFilePath) else {
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throw ConfigurationClientError.invalidConfigurationDirectory(path: url.cleanFilePath)
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}
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// Check for toml file.
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let tomlUrl = url.appending(path: "\(ConfigurationClient.Constants.defaultFileNameWithoutExtension).toml")
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configurationFile = ConfigruationFile(url: tomlUrl)
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if let configurationFile { return configurationFile }
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// Check for json file.
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let jsonUrl = url.appending(path: "\(ConfigurationClient.Constants.defaultFileNameWithoutExtension).json")
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configurationFile = ConfigruationFile(url: jsonUrl)
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if let configurationFile { return configurationFile }
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// Couldn't find valid configuration file.
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return nil
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}
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enum ConfigurationClientError: Error {
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case configurationNotFound
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case invalidConfigurationDirectory(path: String)
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}
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