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

SOURCE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
TARGET_DIR="${MOSAIC_HOME:-$HOME/.config/mosaic}"

mkdir -p "$TARGET_DIR"

if command -v rsync >/dev/null 2>&1; then
  rsync -a --delete "$SOURCE_DIR/" "$TARGET_DIR/"
else
  rm -rf "$TARGET_DIR"/*
  cp -R "$SOURCE_DIR"/* "$TARGET_DIR"/
fi

chmod +x "$TARGET_DIR"/bin/*
chmod +x "$TARGET_DIR"/install.sh

echo "[mosaic-install] Installed framework to $TARGET_DIR"

echo "[mosaic-install] Linking runtime compatibility assets"
if ! "$TARGET_DIR/bin/mosaic-link-runtime-assets"; then
  echo "[mosaic-install] WARNING: runtime asset linking failed (framework install still complete)" >&2
fi

echo "[mosaic-install] Syncing universal skills"
if [[ "${MOSAIC_SKIP_SKILLS_SYNC:-0}" == "1" ]]; then
  echo "[mosaic-install] Skipping skills sync (MOSAIC_SKIP_SKILLS_SYNC=1)"
else
  if ! "$TARGET_DIR/bin/mosaic-sync-skills"; then
    echo "[mosaic-install] WARNING: skills sync failed (framework install still complete)" >&2
  fi
fi

echo "[mosaic-install] Migrating runtime-local skills to Mosaic links"
if ! "$TARGET_DIR/bin/mosaic-migrate-local-skills" --apply; then
  echo "[mosaic-install] WARNING: local skill migration failed (framework install still complete)" >&2
fi

echo "[mosaic-install] Running health audit"
if ! "$TARGET_DIR/bin/mosaic-doctor"; then
  echo "[mosaic-install] WARNING: doctor reported issues (run ~/.config/mosaic/bin/mosaic-doctor --fail-on-warn)" >&2
fi

# Ensure ~/.config/mosaic/bin is in PATH persistently
PATH_LINE="export PATH=\"$TARGET_DIR/bin:\$PATH\""

# Find the right shell profile
if [[ -n "${ZSH_VERSION:-}" ]] || [[ "$(basename "${SHELL:-}")" == "zsh" ]]; then
  SHELL_PROFILE="$HOME/.zshrc"
elif [[ -f "$HOME/.bashrc" ]]; then
  SHELL_PROFILE="$HOME/.bashrc"
elif [[ -f "$HOME/.profile" ]]; then
  SHELL_PROFILE="$HOME/.profile"
else
  SHELL_PROFILE="$HOME/.profile"
fi

if grep -qF "$TARGET_DIR/bin" "$SHELL_PROFILE" 2>/dev/null; then
  echo "[mosaic-install] PATH: $TARGET_DIR/bin already in $SHELL_PROFILE ✓"
else
  {
    echo ""
    echo "# Mosaic agent framework"
    echo "$PATH_LINE"
  } >> "$SHELL_PROFILE"
  echo "[mosaic-install] PATH: Added $TARGET_DIR/bin to $SHELL_PROFILE ✓"
  echo "[mosaic-install] Run 'source $SHELL_PROFILE' or open a new terminal to activate."
fi

if [[ ! -f "$TARGET_DIR/SOUL.md" ]]; then
  echo ""
  echo "[mosaic-install] Set up your agent identity by running: mosaic init"
  echo "[mosaic-install] This generates SOUL.md — the universal behavioral contract for all agent sessions."
fi