#!/bin/bash

# omarchy:summary=Set and launch the default coding agent
# omarchy:args=[pi|omp|opencode|ori|claude|codex|grok|agy|hermes|copilot|crush]
# omarchy:examples=omarchy default agent | omarchy default agent codex | omarchy default agent claude

installing=false
if [[ ${1:-} == "--install" ]]; then
  installing=true
  shift
fi

agent_file="$HOME/.config/omarchy/defaults/agent"

if (($# == 0)); then
  if [[ -f $agent_file ]]; then
    read -r agent <"$agent_file"
  fi

  # Silent when unset rather than defaulting: Omarchy picks no agent for you, so
  # the menu leaves every entry unchecked until one is chosen.
  [[ -n ${agent:-} ]] && echo "$agent"
  exit 0
fi

case "$1" in
pi) agent="pi"; name="Pi" ;;
omp | oh-my-pi) agent="omp"; name="Oh My Pi"; agent_package="github:can1357/oh-my-pi" ;;
opencode | open-code) agent="opencode"; name="OpenCode" ;;
ori | openrouter) agent="ori"; name="Ori"; agent_package="github:OpenRouterLabs/ori-releases" ;;
claude | claude-code) agent="claude"; name="Claude Code" ;;
codex) agent="codex"; name="Codex" ;;
crush) agent="crush"; name="Crush" ;;
grok) agent="grok"; name="Grok"; agent_package="npm:@xai-official/grok" ;;
agy | antigravity | antigravity-cli | gemini | gemini-cli) agent="agy"; name="Antigravity"; agent_package="antigravity-cli" ;;
hermes) agent="hermes"; name="Hermes"; agent_installer="omarchy-install-hermes-cli" ;;
copilot | github-copilot) agent="copilot"; name="GitHub Copilot" ;;
*)
  echo "Usage: omarchy-default-agent <pi|omp|opencode|ori|claude|codex|grok|agy|hermes|copilot|crush>"
  exit 1
  ;;
esac

agent_package=${agent_package:-$agent}

# Hermes reaches mise through its own installer rather than straight from
# here: it needs its interpreter pinned, and a bare `mise use` has nowhere to
# say so. See omarchy-install-hermes-cli.
if [[ -n ${agent_installer:-} ]]; then
  # Not omarchy-cmd-present: the stub is on PATH from first boot and says
  # nothing about whether Hermes is installed behind it. Treating a cold stub
  # as installed skips the floating terminal and runs the minute-long install
  # inside the menu action instead.
  agent_present() { "$agent_installer" --check; }
  agent_install() { "$agent_installer" --now; }
else
  agent_present() { mise where "$agent_package" &>/dev/null; }
  agent_install() { mise use -g "$agent_package"; }
fi

if [[ $installing == "false" ]] && ! agent_present; then
  exec omarchy-launch-floating-terminal-with-presentation omarchy-default-agent --install "$agent"
fi

if ! agent_install; then
  if [[ $installing == "true" ]]; then
    echo "Could not install $name with mise" >&2
  else
    echo "Could not set $name as the default coding agent" >&2
  fi
  exit 1
fi

mkdir -p "$(dirname "$agent_file")"
printf '%s\n' "$agent" >"$agent_file"

if [[ $installing == "true" ]]; then
  printf '\033[2J\033[3J\033[H'
  exec omarchy-agent --inline
else
  exec omarchy-agent
fi