# =============================================================================
# Dockerfile.Spider - Multi-stage build for NScrapy Spider
# =============================================================================
# Build stage: compile the Spider / Shell library
# Runtime stage: run with .NET 10.0 runtime
#
# Usage:
#   docker build -f Dockerfile.Spider -t nscrapy-spider .
#   docker run nscrapy-spider
#
# Environment variables (override appsettings.json):
#   REDIS_ENABLED       - Enable Redis scheduler ("true" / "false")
#   REDIS_HOST          - Redis host address
#   REDIS_PORT          - Redis port (default: 6379)
#   REDIS_PASSWORD      - Redis password
#   REDIS_USESSL        - Use SSL for Redis ("true" / "false")
#   Scheduler__SchedulerType - Scheduler type (InMemoryScheduler / RedisScheduler)
# =============================================================================

# ---- Build Stage ----
FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
WORKDIR /src

# Copy solution and project files first (layer caching optimisation)
COPY NScrapy.sln                       ./
COPY NScrapy/NScrapy.Shell.csproj      NScrapy/
COPY NScrapy/NScrapy.csproj            NScrapy/ 2>/dev/null || true
COPY NScrapy.Engine/NScrapy.Engine.csproj  NScrapy.Engine/
COPY NScrapy.Infra/NScrapy.Infra.csproj   NScrapy.Infra/
COPY NScrapy.Scheduler/NScrapy.Scheduler.csproj  NScrapy.Scheduler/
COPY NScrapy.Spider/NScrapy.Spider.csproj    NScrapy.Spider/
COPY NScrapy.Project/NScrapy.Project.csproj  NScrapy.Project/
COPY NScrapy.Downloader/NScrapy.Downloader.csproj  NScrapy.Downloader/
COPY NScrapy.DownloaderShell/NScrapy.DownloaderShell.csproj  NScrapy.DownloaderShell/

# Restore all NuGet packages
RUN dotnet restore NScrapy/NScrapy.Shell.csproj
RUN dotnet restore NScrapy.Project/NScrapy.Project.csproj

# Copy source code
COPY NScrapy/              NScrapy/
COPY NScrapy.Engine/       NScrapy.Engine/
COPY NScrapy.Infra/        NScrapy.Infra/
COPY NScrapy.Scheduler/    NScrapy.Scheduler/
COPY NScrapy.Spider/       NScrapy.Spider/
COPY NScrapy.Project/      NScrapy.Project/
COPY NScrapy.Downloader/   NScrapy.Downloader/
COPY NScrapy.DownloaderShell/ NScrapy.DownloaderShell/

# Build NScrapy.Project (contains the Main entry point that uses NScrapy.Shell)
WORKDIR /src/NScrapy.Project
RUN dotnet build -c Release --no-restore -o /app/build

# Publish the Spider project
WORKDIR /src/NScrapy.Project
RUN dotnet publish -c Release --no-build -o /app/publish /p:UseAppHost=false

# ---- Runtime Stage ----
FROM mcr.microsoft.com/dotnet/runtime:10.0 AS runtime
WORKDIR /app

# Copy published output from build stage
COPY --from=build /app/publish .

# Copy log4net config so logging works inside the container
COPY NScrapy.Infra/log4net.config ./ 2>/dev/null || true

# Environment defaults
ENV DOTNET_RUNNING_IN_CONTAINER=true
ENV ASPNETCORE_URLS=http://+:80
ENV REDIS_ENABLED=false

# Entry point: run the Spider (NScrapy.Project contains Main)
ENTRYPOINT ["dotnet", "NScrapy.Project.dll"]