setup

#!/bin/bash

set -uo pipefail

errors=()

# Run nix-env but keep the console output compact.
# - Raw nix fetch/build logs are swallowed (kept in a logfile for diagnostics).
# - On a TTY: a single status line is refreshed with the current package.
# - Otherwise (e.g. `devpod up` logs): one concise line per package.
# - Always ends with a ✅/❌ summary.
install_nix_packages() {
  local log sep sb="" rc fetched built
  log=$(mktemp "${TMPDIR:-/tmp}/nix-install.XXXXXX.log")
  if [ -t 1 ]; then sep='\r\033[K'; else sep='\n'; fi
  command -v stdbuf > /dev/null 2>&1 && sb="stdbuf -oL -eL"

  $sb nix-env -f "$HOME/.config/nixpkgs/install.nix" -iA myPackages --impure 2>&1 \
    | tee "$log" \
    | while IFS= read -r line; do
        case "$line" in
          *"copying path '/nix/store/"*)
            n=${line#*store/}; n=${n%%\'*}; n=${n#*-}
            printf "${sep}  \xe2\xac\x87  %-48.48s" "$n"
            ;;
          *"building '/nix/store/"*)
            n=${line#*store/}; n=${n%%.drv*}; n=${n#*-}
            printf "${sep}  \xf0\x9f\x94\xa8 %-48.48s" "$n"
            ;;
        esac
      done
  rc=${PIPESTATUS[0]}

  fetched=$(grep -c "copying path '/nix/store/" "$log" 2> /dev/null || echo 0)
  built=$(grep -c "building '/nix/store/" "$log" 2> /dev/null || echo 0)

  if [ "$rc" -eq 0 ]; then
    printf "${sep}  \xe2\x9c\x85 Nix packages installed (%s fetched, %s built)\n" "$fetched" "$built"
    rm -f "$log"
  else
    printf "${sep}  \xe2\x9d\x8c Nix install failed (%s fetched, %s built before error)\n" "$fetched" "$built"
    grep -iE "error:|failed" "$log" | sed 's/^/       /' | tail -15
    echo "       Full log kept at: $log"
    errors+=("nix-env install failed — see $log or run 'nix-env -f ~/.config/nixpkgs/install.nix -iA myPackages --impure' manually")
  fi
  return "$rc"
}

LOCAL_BIN="$HOME/.local/bin"
GPGID=0x03BC4AD253B82986
mkdir -p $LOCAL_BIN

# If $HOME/.local/bin not in path, add it
if [ -d "$LOCAL_BIN" ] && [[ ":$PATH:" != *":$LOCAL_BIN:"* ]]; then
  PATH="${PATH:+"$PATH:"}$LOCAL_BIN"
fi

# Setup gpg
if ! gpg --receive-keys $GPGID 2>&1; then
  errors+=("GPG key retrieval failed — run 'gpg --receive-keys $GPGID' manually")
fi

# Install and initialize chezmoi in one go
if ! command -v chezmoi > /dev/null; then
  chezmoi_log=$(mktemp "${TMPDIR:-/tmp}/chezmoi-init.XXXXXX.log")
  if sh -c "$(curl -fsLS get.chezmoi.io)" -- -b $LOCAL_BIN init --apply git@github.com:nimser/private-dotfiles-devcontainer.git --exclude=encrypted 2>&1 | tee "$chezmoi_log"; then
    echo "🥁 Only non-encrypted files where applied. Please run 'chezmoi apply --include=encrypted' if needed."
    rm -f "$chezmoi_log"
  else
    # A non-zero exit here is usually a post-apply hook failure (e.g. one
    # package failing to install via mise), not chezmoi itself. Name the
    # actual culprit when we can find one, instead of blaming chezmoi.
    failed_tools=$(grep -oP '(?<=Failed to install ).*?(?=: )' "$chezmoi_log" | sort -u)
    if [ -n "$failed_tools" ]; then
      while IFS= read -r tool; do
        errors+=("package install failed: $tool — dotfiles were still applied; see $chezmoi_log or retry with 'mise install'")
      done <<< "$failed_tools"
    else
      errors+=("chezmoi init/apply reported an error — see $chezmoi_log or check network connection")
    fi
  fi
fi

# Install nix for dependencies that don't have a binary on github (would use mise otherwise)
# and  detect install path from nix feature instead for devcontainers
for f in /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh /etc/profile.d/nix.sh ~/.nix-profile/etc/profile.d/nix.sh; do
  if [ -f "$f" ]; then
    source "$f"
    break
  fi
done

# Fallback: aggressively hunt for nix-env anywhere under /nix or ~/.nix-profile
if ! command -v nix-env &>/dev/null; then
  for d in /nix/var/nix/profiles/default/bin ~/.nix-profile/bin; do
    if [ -x "$d/nix-env" ]; then
      export PATH="$PATH:$d"
      break
    fi
  done
  # Last resort: find the binary wherever it lives
  if ! command -v nix-env &>/dev/null; then
    nix_env_path=$(find /nix /root/.nix-profile "$HOME/.nix-profile" -name nix-env -type f 2>/dev/null | head -1 || true)
    if [ -n "$nix_env_path" ] && [ -x "$nix_env_path" ]; then
      export PATH="$PATH:$(dirname "$nix_env_path")"
    fi
  fi
fi

if ! command -v nix-env &>/dev/null && [ ! -d "/nix" ]; then
  echo "🥁 nix-env command not found. Attempting to install Nix..."
  if sh <(curl -L https://nixos.org/nix/install) --daemon --yes 2>&1; then
    if [ -f /etc/profile.d/nix.sh ]; then source /etc/profile.d/nix.sh; fi
  else
    errors+=("Nix installation failed — reinstall shell or source /etc/profile.d/nix.sh")
  fi
fi

if command -v nix-env &>/dev/null; then
  if [ -f $HOME/.config/nixpkgs/config.nix ]; then
    # Set system type if not provided via cli
    export SYSTEM_TYPE=${SYSTEM_TYPE:-server}
    export NIX_REMOTE=""
    # Install all packages defined in install.nix (compact, filtered output)
    install_nix_packages || true
  else
    echo "💥 WARNING: Nix configuration file not found"
    echo "Ensure chezmoi has run and deployed it correctly."
    errors+=("Nix config not found at ~/.config/nixpkgs/config.nix — check chezmoi apply")
  fi
else
  echo "⚠️  nix-env not available after install attempt — skipping nix package install"
  echo "   Restart your shell or run: source /etc/profile.d/nix.sh && nix-env -f $HOME/.config/nixpkgs/install.nix -iA myPackages --impure"
  errors+=("nix-env not available — packages from install.nix were not installed")
fi

# Summary
if [ "${#errors[@]}" -gt 0 ]; then
  echo ""
  echo "╔════════════════════════════════════════════════════════╗"
  echo "║  ⚠️  Setup completed with errors                       ║"
  echo "╠════════════════════════════════════════════════════════╣"
  for err in "${errors[@]}"; do
    echo "║  ❌ $err"
  done
  echo "╚════════════════════════════════════════════════════════╝"
  echo ""
  echo "   🏁 Setup continues — workspace will still be usable. Fix the above at your convenience."
  echo ""
fi

echo "✅ Finished setting up dotfiles"
exit 0