feat(repo): added minimal repo class

CHECKLIST.md

@@ -2,12 +2,12 @@
 
 - [x] Initialize Project
 - [x] Configure `build.gradle.kts` with dependencies
-- [ ] Set up testing framework
+- [x] Set up testing framework
 
 # Core
 
-- [ ] Create `Repository.kt` class
-- [ ] Implement `.notevc` directory initialization
+- [x] Create `Repository.kt` class
+- [x] Implement `.notevc` directory initialization
 - [ ] Create `ObjectStore.kt` for content storage 
 - [ ] Implement content hashing `HashUtils.kt`
 - [ ] Create `NoteSnapshot` data class

build.gradle.kts

@@ -1,25 +1,48 @@
+import java.time.Instant
+
 plugins {
     kotlin("jvm") version "2.2.21"
+    kotlin("plugin.serialization") version "2.2.21"
     application
+    id("com.github.gmazzo.buildconfig") version "4.1.2"
+    id("com.gradleup.shadow") version "9.2.2"
 }
 
 group = "io.notevc"
 version = "1.0.0"
 
+buildConfig {
+    buildConfigField("String", "VERSION", "\"${project.version}\"")
+    buildConfigField("String", "BUILD_TIME", "\"${Instant.now()}\"")
+    packageName("io.notevc")
+}
+
 repositories {
     mavenCentral()
 }
 
 dependencies {
+    val junitVersion = "5.10.0"
     implementation(kotlin("stdlib"))
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
+    
+    testImplementation("org.junit.jupiter:junit-jupiter-api:$junitVersion")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:$junitVersion")
 }
 
 application {
     mainClass.set("io.notevc.NoteVCKt")
 }
 
-tasks.jar {
-    manifest {
-        attributes["Main-Class"] = "io.notevc.NoteVCKt"
-    }
+tasks.withType<Test> {
+    useJUnitPlatform()
 }
+
+tasks.build {
+    dependsOn(tasks.shadowJar)
+}
+
+tasks.jar {
+    enabled = false
+}
+

src/main/kotlin/io/notevc/NoteVC.kt

@@ -1,5 +1,31 @@
 package io.notevc
 
-fun main() {
-    println("hello world")
+import io.notevc.core.Repository
+import io.notevc.commands.*
+
+fun main(args: Array<String>) {
+    // Args logic
+    when (args.firstOrNull()) {
+        "init" -> {
+            val initCommand = InitCommand()
+            val result = initCommand.execute(args.getOrNull(1))
+
+            result.fold(
+                onSuccess = { message -> println(message) },
+                onFailure = { error -> println("Error: ${error.message}") }
+            )
+        }
+
+        "commit" -> {
+            println("Not implemented yet")
+        }
+
+        "status" -> {
+            println("Not implemented yet")
+        }
+
+        "version", "--version", "-v" -> {
+            println("notevc version ${Repository.VERSION}")
+        }
+    }
 }

src/main/kotlin/io/notevc/commands/InitCommand.kt

@@ -1 +1,26 @@
 package io.notevc.commands
+
+import io.notevc.core.Repository
+import java.nio.file.Path
+
+class InitCommand {
+    fun execute(path: String?): Result<String> {
+        return try {
+            val repo = if (path != null) {
+                Repository.at(path).getOrElse { return Result.failure(it) }
+            } else Repository.current()
+
+            repo.init().fold(
+                onSuccess = {
+                    Result.success("Initialized notevc repository in ${repo.path.toAbsolutePath()}")
+                },
+                onFailure = {
+                    error -> Result.failure(error)
+                }
+            )
+        }
+        catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+}

src/main/kotlin/io/notevc/core/Repository.kt

@@ -1 +1,103 @@
 package io.notevc.core
+
+import java.nio.file.Path
+import java.nio.file.Paths
+import kotlin.io.path.*
+import io.notevc.BuildConfig
+import kotlinx.serialization.*
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.encodeToString
+import java.nio.file.Files
+import java.time.Instant
+
+class Repository private constructor(private val rootPath: Path) {
+    private val notevcDir = rootPath.resolve(NOTEVC_DIR)
+    val path: Path get() = rootPath
+    val isInitialized: Boolean get() = notevcDir.exists()
+
+    companion object {
+        // Factory methods - these create Repository instances
+        
+        // Create repository at a specified path
+        fun at(path: String): Result<Repository> {
+            return try {
+                val absolutePath = Path.of(path).toAbsolutePath()
+                when {
+                    !absolutePath.exists() -> Result.failure(Exception("Directory does not exist: $path"))
+                    !absolutePath.isDirectory() -> Result.failure(Exception("Path is not directory: $path"))
+                    !absolutePath.isWritable() -> Result.failure(Exception("Directory is not writable: $path"))
+                    else -> Result.success(Repository(absolutePath))
+                }
+            }
+            catch (e: Exception) {
+                Result.failure(e)
+            }
+        }
+
+        // Create repository at current directory
+        fun current(): Repository = Repository(Path.of(System.getProperty("user.dir")).toAbsolutePath())
+
+        // Find existing repository by walking up
+        fun find(): Repository? {
+            var current = Path.of(System.getProperty("user.dir")).toAbsolutePath()
+            while (current != null) {
+                if (current.resolve(NOTEVC_DIR).exists()) return Repository(current)
+                current = current.parent // Go up one level
+            }
+            return null // No repository found
+        }
+
+        // Constants
+        const val NOTEVC_DIR = ".notevc"
+        val VERSION = BuildConfig.VERSION
+        val BUILD_TIME = BuildConfig.BUILD_TIME
+
+    }
+
+    override fun toString(): String = "Repository(path=${rootPath.toAbsolutePath()}, initialized=$isInitialized)"
+
+    fun init(): Result<Unit> {
+        return try {
+            // Check if already initialized
+            if (isInitialized) return Result.failure(Exception("Repository already initialized at ${rootPath.toAbsolutePath()}"))
+
+            // Create .notevc directory structure
+            Files.createDirectories(notevcDir)
+            Files.createDirectories(notevcDir.resolve("objects"))
+
+            // Create initial metadata
+            val metadata = RepoMetadata(
+                version = VERSION,
+                created = Instant.now().toString(),
+                head = null
+            )
+
+            // Save metadata to .notevc/metadata.json
+            val metadataFile = notevcDir.resolve("metadata.json")
+            Files.writeString(metadataFile, Json.encodeToString(metadata))
+
+            // Create empty timeline
+            val timelineFile = notevcDir.resolve("timeline.json")
+            Files.writeString(timelineFile, "[]")
+
+            Result.success(Unit)
+        }
+        catch (e: Exception) {
+            Result.failure(e)
+        }
+    }
+}
+
+@Serializable
+data class RepoMetadata(
+    val version: String,
+    val created: String,
+    var head: String?
+)
+
+@Serializable
+data class RepoConfig(
+    val autoCommit: Boolean = false,
+    val compressionEnabled: Boolean = false,
+    val maxSnapshots: Int = 100
+)

src/main/kotlin/io/notevc/utils/FileUtils.kt

@@ -1 +1,3 @@
 package io.notevc.utils
+
+