#!/usr/bin/env bash
set -e

REPO_RAW="https://raw.githubusercontent.com/elitex45/dualcode/main"
OPENCODE_DIR="$HOME/.config/opencode"
CLAUDE_MD="$HOME/.claude/CLAUDE.md"
SHELL_RC="$HOME/.zshrc"
[[ "$SHELL" == *"bash"* ]] && SHELL_RC="$HOME/.bashrc"

echo "Installing dualcode..."

mkdir -p "$OPENCODE_DIR"

curl -fsSL "$REPO_RAW/AGENTS.md" -o "$OPENCODE_DIR/AGENTS.md"
echo "✓ Installed AGENTS.md to $OPENCODE_DIR/AGENTS.md"

mkdir -p "$HOME/.claude"
touch "$CLAUDE_MD"

if grep -q "dualcode" "$CLAUDE_MD"; then
  echo "✓ CLAUDE.md already contains dualcode protocol, skipping"
else
  printf "\n---\n" >> "$CLAUDE_MD"
  curl -fsSL "$REPO_RAW/CLAUDE-append.md" >> "$CLAUDE_MD"
  echo "✓ Appended dualcode protocol to $CLAUDE_MD"
fi

if grep -q "create-project()" "$SHELL_RC" 2>/dev/null; then
  echo "✓ create-project already exists in $SHELL_RC, skipping"
else
  printf '\n# dualcode: create new project with linked AGENTS.md\n' >> "$SHELL_RC"
  printf 'create-project() {\n' >> "$SHELL_RC"
  printf '  if [ -z "$1" ]; then\n' >> "$SHELL_RC"
  printf '    echo "Usage: create-project <folder-name>"\n' >> "$SHELL_RC"
  printf '    return 1\n' >> "$SHELL_RC"
  printf '  fi\n' >> "$SHELL_RC"
  printf '  mkdir -p "$1"\n' >> "$SHELL_RC"
  printf '  cd "$1"\n' >> "$SHELL_RC"
  printf '  ln -s "%s/AGENTS.md" ./AGENTS.md\n' "$OPENCODE_DIR" >> "$SHELL_RC"
  printf '  echo "✓ Created $1 with linked AGENTS.md"\n' >> "$SHELL_RC"
  printf '}\n' >> "$SHELL_RC"
  echo "✓ Added create-project to $SHELL_RC"
  echo "  Run: source $SHELL_RC (or restart terminal)"
fi

echo ""
echo "✓ dualcode installed successfully."
echo ""
echo "Usage:"
echo "  1. Open Claude Code in any project folder"
echo "  2. Discuss what you want to build"
echo "  3. Say 'dualcode' to trigger planning and execution"
echo ""
echo "To start a new project:"
echo "  create-project <folder-name>"