#!/bin/bash
# build-persistent-devbox.sh
# Persistent Fedora Minimal-based devbox with SSH, Git, and GitOps secrets (immutable config files)

set -euo pipefail

IMG_NAME="analytics-backend-workspace"
SECURE=/opt/secure

ctr=$(buildah from registry.fedoraproject.org/fedora-minimal:40)

buildah run "$ctr" -- microdnf update -y
buildah run "$ctr" -- microdnf install -y \
  neovim git zsh tmux podman openssh-server \
  java-17-openjdk maven sudo shadow-utils gnupg attr &&
  microdnf clean all

buildah run "$ctr" -- useradd -ms /bin/zsh devuser
buildah run "$ctr" -- bash -c 'echo "devuser ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/devuser'

# SSH setup
buildah run "$ctr" -- mkdir -p /"$SECURE"/ssh
buildah copy "$ctr" ssh/config /"$SECURE"/ssh/config
buildah copy "$ctr" ssh/ssh_blocker.sh /"$SECURE"/ssh/ssh_blocker.sh
buildah run "$ctr" -- chmod 100 /"$SECURE"/ssh/ssh_blocker.sh
buildah run "$ctr" -- chmod 000 /"$SECURE"/ssh/config
buildah run "$ctr" -- chown -R root:root ssh/config /"$SECURE"/ssh_blocker.sh
buildah run "$ctr" -- chattr -R +i /"$SECURE"/ssh

# Neovim config (immutable)
buildah copy "$ctr" config/nvim /home/devuser/.config/nvim
buildah run "$ctr" -- chmod -R 600 /home/devuser/.config/nvim

# zsh and tmux config (immutable)
buildah copy "$ctr" ./zshrc /home/devuser/.zshrc
buildah run "$ctr" -- chattr +i /home/devuser/.zshrc
buildah run "$ctr" -- bash -c 'echo "set -g mouse on" > /home/devuser/.tmux.conf'
buildah run "$ctr" -- chattr +i /home/devuser/.tmux.conf

# Git config and secrets placeholder (immutable)
buildah run "$ctr" -- mkdir -p /home/devuser/.gnupg /home/devuser/.git-credentials
buildah copy "$ctr" ./gitconfig /home/devuser/.gitconfig
buildah copy "$ctr" ./gpg-key.asc /home/devuser/.gnupg/gpg-key.asc
buildah run "$ctr" -- chattr +i /home/devuser/.gitconfig
buildah run "$ctr" -- chattr +i /home/devuser/.gnupg/gpg-key.asc

buildah run "$ctr" -- chattr -R +i /home/devuser/.config
buildah run "$ctr" -- chown -R devuser:devuser /home/devuser
buildah run "$ctr" -- chattr -R +i /home/devuser

buildah config --user devuser "$ctr"
buildah config --workingdir /home/devuser "$ctr"
buildah config --env CONTAINER_HOST=unix:///run/podman/podman.sock "$ctr"
buildah config --env GIT_SSH=/usr/local/bin/git-ssh-wrapper.sh "$ctr"
buildah config --port 22 "$ctr"
buildah config --cmd "/home/devuser/start.sh" "$ctr"

buildah commit "$ctr" $IMG_NAME

echo "✅ $IMG_NAME built."