# --- Build ---
FROM oven/bun:latest AS build

WORKDIR /app

# Copy lockfile and package.json to cache dependencies
COPY package.json bun.lockb ./

# Install dependencies needed for the D2 installer
# oven/bun:latest is Debian-based, so we use apt-get
RUN apt-get update && apt-get install -y \
    curl \
    build-essential \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Install D2 and VERIFY immediately
# Adding 'd2 --version' ensures the build stops if the install failed
RUN curl -fsSL https://d2lang.com/install.sh | sh -s -- && d2 --version

# Install dependencies
RUN bun install --frozen-lockfile

# Copy the rest of your source code
COPY . .

# Build the static site
RUN bun run build

# --- Runtime ---
FROM nginx:stable-alpine AS runtime

# Copy the custom nginx configuration
COPY nginx.conf /etc/nginx/nginx.conf

# Copy the static files from the build stage
COPY --from=build /app/dist /usr/share/nginx/html

# Give read permissions to Nginx over D2 generated assets
RUN chmod -R 755 /usr/share/nginx/html/assets/d2

EXPOSE 8080