Use Conda for backend & sync-microservice setup on Windows

scripts/setup.ps1

@@ -112,6 +112,56 @@ if (-not (Test-Command cmake)) {
     Write-Host "CMake is already installed. Version: $(cmake --version)" -ForegroundColor Green
 }
 
+# --------------------------------------------------
+# Miniconda
+# --------------------------------------------------
+$condaRoot = "$env:USERPROFILE\miniconda3"
+$condaExe  = "$condaRoot\Scripts\conda.exe"
+
+if (-not (Test-Path $condaExe)) {
+    Write-Host "Installing Miniconda..." -ForegroundColor Yellow
+    $installer = "$env:TEMP\miniconda.exe"
+    Invoke-WebRequest `
+        -Uri "https://repo.anaconda.com/miniconda/Miniconda3-latest-Windows-x86_64.exe" `
+        -OutFile $installer
+
+    if ($LASTEXITCODE -ne 0 -or !(Test-Path $installer)) {
+        throw "Failed to download Miniconda installer"
+    }
+
+    Start-Process -Wait -FilePath $installer -ArgumentList `
+        "/InstallationType=JustMe",
+        "/AddToPath=0",
+        "/RegisterPython=0",
+        "/S",
+        "/D=$condaRoot"
+
+   if ($LASTEXITCODE -ne 0) {
+        throw "Miniconda installer exited with an error"
+    }
+
+    Remove-Item $installer
+
+    # Validate installation
+    if (-not (Test-Path $condaExe)) {
+        throw "Conda executable not found after Miniconda installation"
+    }
+
+    Write-Host "Miniconda installed successfully." -ForegroundColor Green
+}
+else {
+    Write-Host "Miniconda already installed. Skipping installation." -ForegroundColor Green
+}
+
+# --------------------------------------------------
+# Initialize Conda (THIS WAS MISSING BEFORE)
+# --------------------------------------------------
+$env:Path = "$condaRoot;$condaRoot\Scripts;$condaRoot\condabin;$env:Path"
+
+$condaBase = & $condaExe info --base
+& "$condaBase\shell\condabin\conda-hook.ps1"
+
+
 # ---- Set up the frontend ----
 Write-Host "Setting up frontend..." -ForegroundColor Yellow
 try {
@@ -131,19 +181,37 @@ try {
 # ---- Set up the backend using Python 3.12 ----
 Write-Host "Setting up backend..." -ForegroundColor Yellow
 try {
-    Set-Location .\backend\
-
-    # Create virtual environment
-    python -m venv .env
-
-    # Activate virtual environment and install dependencies
-    .\.env\Scripts\Activate.ps1
-    python -m pip install --upgrade pip
-    python -m pip install -r requirements.txt
-    deactivate
-
+
+     Set-Location .\backend\
+
+    Write-Host "Setting up backend Conda environment..." -ForegroundColor Cyan
+
+    # Remove existing environment (ignore if it does not exist)
+    conda remove -n backend_env --all -y
+    if ($LASTEXITCODE -ne 0) {
+        Write-Host "Environment did not exist or could not be removed, continuing..." -ForegroundColor Yellow
+    }
+
+    # Create fresh environment
+    conda create -n backend_env python=3.12 -y
+    if ($LASTEXITCODE -ne 0) {
+        throw "Failed to create Conda environment"
+    }
+
+    # Upgrade pip inside the environment
+    conda run -n backend_env python -m pip install --upgrade pip
+    if ($LASTEXITCODE -ne 0) {
+        throw "Failed to upgrade pip inside Conda environment"
+    }
+
+    # Install backend dependencies
+    conda run -n backend_env python -m pip install -r requirements.txt
+    if ($LASTEXITCODE -ne 0) {
+        throw "Failed to install backend dependencies"
+    }
+
     Set-Location ..
-    
+
     Write-Host "Backend setup completed successfully." -ForegroundColor Green
 } catch {
     Write-Host "Error setting up backend: $_" -ForegroundColor Red
@@ -155,17 +223,34 @@ Write-Host "Setting up sync-microservice..." -ForegroundColor Yellow
 try {
     Set-Location .\sync-microservice\
 
-    # Create virtual environment
-    python -m venv .sync-env
-
-    # Activate virtual environment and install dependencies
-    .\.sync-env\Scripts\Activate.ps1
-    python -m pip install --upgrade pip
-    python -m pip install -r requirements.txt
-    deactivate
-
+    Write-Host "Setting up sync-microservice Conda environment..." -ForegroundColor Cyan
+
+    # Remove existing environment (ignore if it does not exist)
+    conda remove -n sync_env --all -y
+    if ($LASTEXITCODE -ne 0) {
+        Write-Host "Environment did not exist or could not be removed, continuing..." -ForegroundColor Yellow
+    }
+
+    # Create fresh environment
+    conda create -n sync_env python=3.12 -y
+    if ($LASTEXITCODE -ne 0) {
+        throw "Failed to create Conda environment for sync-microservice"
+    }
+
+    # Upgrade pip inside the environment
+    conda run -n sync_env python -m pip install --upgrade pip
+    if ($LASTEXITCODE -ne 0) {
+        throw "Failed to upgrade pip in sync_env"
+    }
+
+    # Install dependencies inside the environment
+    conda run -n sync_env python -m pip install -r requirements.txt
+    if ($LASTEXITCODE -ne 0) {
+        throw "Failed to install sync-microservice dependencies"
+    }
+
     Set-Location ..
-    
+
     Write-Host "Sync-microservice setup completed successfully." -ForegroundColor Green
 } catch {
     Write-Host "Error setting up sync-microservice: $_" -ForegroundColor Red