From f1d1bce20b8250f89d725b60dbedd13d8ce12bae Mon Sep 17 00:00:00 2001
From: Alexander Zhirov <alexander@zhirov.kz>
Date: Fri, 23 May 2025 20:47:53 +0300
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---
 source/snapd/config/config.d    | 93 +++++++++++++++++++++++++++++++++
 source/snapd/config/exception.d | 14 +++++
 source/snapd/config/package.d   |  4 ++
 3 files changed, 111 insertions(+)
 create mode 100644 source/snapd/config/config.d
 create mode 100644 source/snapd/config/exception.d
 create mode 100644 source/snapd/config/package.d

diff --git a/source/snapd/config/config.d b/source/snapd/config/config.d
new file mode 100644
index 0000000..5822758
--- /dev/null
+++ b/source/snapd/config/config.d
@@ -0,0 +1,93 @@
+module snapd.config.config;
+
+import std.json;
+import std.file;
+import std.path;
+import std.regex;
+import std.string;
+
+import snapd.config.exception;
+
+class SnapdConfig {
+	private string _git;
+	private string _project;
+	private string _email;
+
+	private bool isValidEmail(string email) {
+		auto emailPattern = ctRegex!r"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$";
+		return !matchFirst(email, emailPattern).empty;
+	}
+
+	this(string configFile) {
+		string jsonText;
+		JSONValue jsonData;
+
+		try {
+			jsonText = readText(configFile);
+			jsonData = parseJSON(jsonText);
+		} catch (Exception e) {
+			throw new SnapdConfigException(
+				"An error occurred while reading the configuration file:\n\t"
+				~ e.msg
+			);
+		}
+
+		if ("git" !in jsonData)
+			throw new SnapdConfigException(
+				"The configuration file is missing the \"git\" parameter"
+			);
+
+		_git = jsonData["git"].str;
+
+		if (!_git.length)
+			throw new SnapdConfigException(
+				"The \"git\" parameter must contain the path to the directory"
+			);
+
+		if (!_git.isAbsolute)
+			throw new SnapdConfigException(
+				"The \"git\" parameter must be an absolute path to the directory:\n\t"
+				~ _git
+			);
+
+		if ("project" !in jsonData)
+			throw new SnapdConfigException(
+				"The configuration file is missing the \"project\" parameter"
+			);
+
+		_project = jsonData["project"].str;
+
+		if (!_project.length)
+			throw new SnapdConfigException(
+				"The \"project\" parameter must contain the path to the directory"
+			);
+
+		if (!_project.isAbsolute)
+			throw new SnapdConfigException(
+				"The \"project\" parameter must be an absolute path to the directory:\n\t"
+				~ _project
+			);
+
+		if ("email" !in jsonData)
+			throw new SnapdConfigException(
+				"The configuration file is missing the \"email\" parameter"
+			);
+
+		_email = jsonData["email"].str;
+
+		if (!_email.length)
+			throw new SnapdConfigException(
+				"The \"email\" parameter must contain an email address"
+			);
+		
+		if (!isValidEmail(_email))
+			throw new SnapdConfigException(
+				"Invalid email address provided in the \"email\" parameter:\n\t"
+				~ _email
+			);
+	}
+
+	@property string git() const { return _git; }
+	@property string project() const { return _project; }
+	@property string email() const { return _email; }
+}
diff --git a/source/snapd/config/exception.d b/source/snapd/config/exception.d
new file mode 100644
index 0000000..1abc0e5
--- /dev/null
+++ b/source/snapd/config/exception.d
@@ -0,0 +1,14 @@
+module snapd.config.exception;
+
+import std.exception;
+import std.stdio : writeln;
+
+class SnapdConfigException : Exception {
+	this(string msg, string file = __FILE__, size_t line = __LINE__) {
+		super(msg, file, line);
+	}
+
+	void print() {
+		writeln(msg);
+	}
+}
diff --git a/source/snapd/config/package.d b/source/snapd/config/package.d
new file mode 100644
index 0000000..5dd2aed
--- /dev/null
+++ b/source/snapd/config/package.d
@@ -0,0 +1,4 @@
+module snapd.config;
+
+public import snapd.config.exception;
+public import snapd.config.config;