# =========================================================================
# STAGE 1: Build & Compile Tailwind CSS (Node.js + Yarn)
# =========================================================================
FROM node:20-alpine AS tailwind-builder
WORKDIR /src

# Copy package descriptors first to leverage Docker layer caching
COPY Tmt.SaqaTravel/package.json Tmt.SaqaTravel/yarn.lock ./Tmt.SaqaTravel/

# Install Node dependencies using Yarn with frozen lockfile for deterministic builds
WORKDIR /src/Tmt.SaqaTravel
RUN yarn install --frozen-lockfile

# Copy the minimum files required for Tailwind CSS compilation.
# Tailwind scans Razor components and pages to identify and compile used utility classes.
WORKDIR /src
COPY Tmt.SaqaTravel/Components/ ./Tmt.SaqaTravel/Components/
COPY Tmt.SaqaTravel/Styles/ ./Tmt.SaqaTravel/Styles/
COPY Tmt.SaqaTravel/tailwind.config.js* ./Tmt.SaqaTravel/

# Run the Tailwind CSS build script to output the compiled app.min.css inside wwwroot
WORKDIR /src/Tmt.SaqaTravel
RUN mkdir -p wwwroot && \
    (yarn run build || npx tailwindcss -i Styles/app.css -o wwwroot/app.min.css --minify)

# =========================================================================
# STAGE 2: Restore, Build, & Publish .NET 10 Application
# =========================================================================
FROM mcr.microsoft.com/dotnet/sdk:10.0 AS dotnet-builder

# Install Node.js & Yarn in the .NET builder stage to support MSBuild frontend compilation targets
RUN apt-get update && apt-get install -y curl && \
    curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && \
    apt-get install -y nodejs && \
    npm install -g yarn

WORKDIR /src

# Copy the XML-based solution (.slnx) and project file for package restoration
COPY Tmt.SaqaTravel.slnx ./
COPY Tmt.SaqaTravel/Tmt.SaqaTravel.csproj ./Tmt.SaqaTravel/

# Restore NuGet dependencies
RUN dotnet restore Tmt.SaqaTravel/Tmt.SaqaTravel.csproj

# Copy the full C# source code
COPY Tmt.SaqaTravel/ ./Tmt.SaqaTravel/

# Overwrite / insert the pre-compiled, minified Tailwind CSS stylesheet from Stage 1
COPY --from=tailwind-builder /src/Tmt.SaqaTravel/wwwroot/app.min.css ./Tmt.SaqaTravel/wwwroot/app.min.css

# Compile and publish the release-ready Blazor app (No AppHost, single-file DLL bundle)
WORKDIR /src/Tmt.SaqaTravel
RUN dotnet publish Tmt.SaqaTravel.csproj -c Release -o /app/publish /p:UseAppHost=false

# =========================================================================
# STAGE 3: Slim, Secure, and Lightweight Runtime Container
# =========================================================================
FROM mcr.microsoft.com/dotnet/aspnet:10.0-alpine AS final
WORKDIR /app

# Expose standard web traffic ports
EXPOSE 8080
EXPOSE 8081

# Copy the published C# binaries and static wwwroot files
COPY --from=dotnet-builder /app/publish .

# Configure ASP.NET Core URL bindings to listen on non-privileged port
ENV ASPNETCORE_URLS=http://+:8080
ENV ASPNETCORE_ENVIRONMENT=Production

# Leverage the default .NET non-root user ($APP_UID is 1654 in alpine) for secure container execution
USER $APP_UID

ENTRYPOINT ["dotnet", "Tmt.SaqaTravel.dll"]