#!/usr/bin/env bash
set -euo pipefail

# install.sh — Peeta Tools installer (small & strict, no sudo)
#
# Usage:
#   curl -fsSL https://xxx.com/install.sh | bash
#
# Notes:
# - Installs CLI entrypoints into ~/.local/bin (no sudo)
# - Appends PATH export to ~/.zshrc / ~/.bashrc (idempotent)
# - For curl|bash: prints 2 lines to make current shell work immediately

REPO_URL="https://github.com/peeta-ai/peeta-tools.git"
INSTALL_ROOT="${HOME}/.peeta"
TOOLS_DIR="${INSTALL_ROOT}/tools"
BIN_DIR="${HOME}/.local/bin"
PATH_LINE='export PATH="$HOME/.local/bin:$PATH"'

log() { echo "[peeta-tools] $*"; }

log "Installing Peeta tools..."

mkdir -p "$INSTALL_ROOT"
mkdir -p "$BIN_DIR"

# clone / update
if [ -d "$TOOLS_DIR/.git" ]; then
  log "Repo already exists, updating..."
  git -C "$TOOLS_DIR" pull --ff-only
else
  log "Cloning repo..."
  git clone "$REPO_URL" "$TOOLS_DIR"
fi

# install bin/*
log "Installing CLI tools to $BIN_DIR"
for f in "$TOOLS_DIR/bin/"*; do
  [ -e "$f" ] || continue
  name="$(basename "$f")"
  ln -sf "$f" "$BIN_DIR/$name"
  chmod +x "$f"
  log "  - installed: $name"
done

# append PATH to rc files (idempotent by substring)
append_if_missing() {
  local rc="$1"
  [ -f "$rc" ] || touch "$rc"
  if grep -Fqs "$HOME/.local/bin" "$rc"; then
    return 0
  fi
  {
    echo
    echo "# Added by peeta-tools installer ($(date '+%Y-%m-%d %H:%M:%S'))"
    echo "$PATH_LINE"
  } >> "$rc"
}

# prefer current shell rc, but keep it simple: update both if present
if [ -f "$HOME/.zshrc" ]; then append_if_missing "$HOME/.zshrc"; fi
if [ -f "$HOME/.bashrc" ]; then append_if_missing "$HOME/.bashrc"; fi
# if neither exists, default to ~/.zshrc (your environment is zsh)
if [ ! -f "$HOME/.zshrc" ] && [ ! -f "$HOME/.bashrc" ]; then
  append_if_missing "$HOME/.zshrc"
  log "Updated: $HOME/.zshrc"
else
  log "Updated shell rc (if present): ~/.zshrc ~/.bashrc"
fi

log "Installation complete."
echo
echo "Available commands:"
for f in "$TOOLS_DIR/bin/"*; do
  [ -e "$f" ] || continue
  echo "  - $(basename "$f")"
done

echo
echo "Next steps:"
echo "  - Ensure Python 3.11, Poetry, and gcloud are installed"
echo "  - Run: peeta-agent-release -h"

# IMPORTANT: curl|bash cannot modify parent shell, always print this
echo
log "Current terminal not updated (expected for curl | bash)."
log "Run these in your current shell to use commands immediately:"
echo "  export PATH=\"\$HOME/.local/bin:\$PATH\""
echo "  hash -r"