#!/usr/bin/env bash
set -euo pipefail
source "$(dirname "${BASH_SOURCE[0]}")/_common.sh"

ok() { c_green "  ✓ $1"; }
bad() { c_red "  ✗ $1"; }
warn() { c_yellow "  ! $1"; }

echo "Research-Link-AI dev-health"

# Python
if command -v python >/dev/null 2>&1; then ok "python: $(python --version 2>&1)"; else bad "python not found"; fi

# Package manager
if command -v pip >/dev/null 2>&1; then ok "pip available"; else warn "pip not found"; fi
command -v uv >/dev/null 2>&1 && ok "uv available (optional)" || true

# Backend import health
if python -c "import researchlink.api.app" >/dev/null 2>&1; then
  ok "backend imports cleanly"
else
  bad "backend import failed — run: pip install -e ."
fi

# Node (only if a frontend project exists)
if [ -f "$FRONTEND_DIR/package.json" ]; then
  if command -v node >/dev/null 2>&1; then ok "node: $(node --version)"; else bad "node required for frontend but not found"; fi
  [ -d "$FRONTEND_DIR/node_modules" ] && ok "frontend deps installed" || warn "frontend deps missing — run: (cd frontend && npm install)"
else
  c_dim "  frontend: served by backend (no Node required)"
fi

# .env
[ -f "$ROOT/.env" ] && ok ".env present" || warn ".env missing — 'make start' will create it from .env.example"

# Ports
port_in_use "127.0.0.1" "$BACKEND_PORT" && warn "backend port ${BACKEND_PORT} busy" || ok "backend port ${BACKEND_PORT} free"
if [ -f "$FRONTEND_DIR/package.json" ]; then
  port_in_use "127.0.0.1" "$FRONTEND_PORT" && warn "frontend port ${FRONTEND_PORT} busy" || ok "frontend port ${FRONTEND_PORT} free"
fi
echo "Access URL: ${BACKEND_URL}/  (advertised host: ${ADV_HOST}, bind: ${BIND_HOST})"

# LLM provider readiness
echo "LLM mode: $LLM_MODE (model: $LLM_MODEL)"
if is_external_mode; then
  [ "$(key_configured)" = "yes" ] && ok "API key configured for $LLM_MODE" || bad "API key missing for $LLM_MODE — set it in .env"
else
  ok "offline / local mode — no API key required"
fi