#!/usr/bin/env bash
# UserPromptSubmit hook — injects unread coord messages and (in dev mode) active locks.
SESSION="$(hostname)/claude-main"
API="http://172.16.3.30:8001"
SCRIPT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
MODE_FILE="${SCRIPT_DIR}/current-mode"

# --- Initialize mode file if missing -----------------------------------------
# The mode file is machine-local (gitignored) and required by this hook.
# If missing, create it with "general" as the default mode.
if [ ! -f "$MODE_FILE" ]; then
  echo "general" > "$MODE_FILE"
  echo "[INFO] Created .claude/current-mode with default mode: general" >&2
fi

# Read short username alias from identity.json (if present)
IDENTITY_FILE="${SCRIPT_DIR}/identity.json"
USER_ALIAS=""
if [ -f "$IDENTITY_FILE" ]; then
  USER_ALIAS=$(jq -r '.user // empty' "$IDENTITY_FILE" 2>/dev/null)
fi

# --- Unread messages ---------------------------------------------------------

# Query for messages addressed to full session ID
result=$(curl -s --connect-timeout 3 "${API}/api/coord/messages?to_session=${SESSION}&unread_only=true" 2>/dev/null)

# Also query for messages addressed to the short username alias (e.g. "howard")
result_alias=""
if [ -n "$USER_ALIAS" ] && [ "$USER_ALIAS" != "$SESSION" ]; then
  result_alias=$(curl -s --connect-timeout 3 "${API}/api/coord/messages?to_session=${USER_ALIAS}&unread_only=true" 2>/dev/null)
fi

# Merge both result sets (combine .messages arrays, recompute total)
if [ -n "$result_alias" ]; then
  alias_msgs=$(echo "$result_alias" | jq '.messages // []' 2>/dev/null)
  if [ -n "$alias_msgs" ] && [ "$alias_msgs" != "[]" ] && [ "$alias_msgs" != "null" ]; then
    if [ -n "$result" ]; then
      result=$(echo "$result" "$result_alias" | jq -s '{total: (.[0].total + .[1].total), messages: (.[0].messages + .[1].messages)}' 2>/dev/null)
    else
      result="$result_alias"
    fi
  fi
fi

if [ -n "$result" ]; then
  count=$(echo "$result" | jq '.total' 2>/dev/null)
  if [ -n "$count" ] && [ "$count" -gt 0 ]; then
    echo ""
    echo "============================================================"
    echo "UNREAD COORD MESSAGES ($count)"
    echo "============================================================"
    echo "$result" | jq -r '.messages[] | "FROM: \(.from_session)\nDATE: \(.created_at)\nSUBJECT: \(.subject)\n\nMESSAGE:\n\(.body)\n---"'
    echo "============================================================"
    echo ""

    # Fire a Windows toast so the user sees it even if not watching the terminal
    toast_body=$(echo "$result" | jq -r '[.messages[] | .from_session + ": " + .subject] | join(", ")' | tr -d '\r')
    notify_ps1=$(cygpath -w "${SCRIPT_DIR}/scripts/notify.ps1" 2>/dev/null || echo "${SCRIPT_DIR}/scripts/notify.ps1" | sed 's|^/\([a-zA-Z]\)/|\1:/|')
    powershell.exe -NonInteractive -NoProfile -Command \
      "& '$notify_ps1' -Title 'ClaudeTools: $count new message(s)' -Message '$toast_body'" \
      >/dev/null 2>&1 &

    # Mark all fetched messages as read immediately
    echo "$result" | jq -r '.messages[].id' | tr -d '\r' | while read -r id; do
      curl -s -X PUT "${API}/api/coord/messages/${id}/read" >/dev/null 2>&1
    done
  fi
fi

# --- Active locks (dev mode only) -------------------------------------------

current_mode=""
[ -f "$MODE_FILE" ] && current_mode=$(cat "$MODE_FILE" | tr -d '[:space:]')

if [ "$current_mode" = "dev" ]; then
  locks=$(curl -s --connect-timeout 3 "${API}/api/coord/locks" 2>/dev/null)
  if [ -n "$locks" ]; then
    lock_count=$(echo "$locks" | jq '.total' 2>/dev/null)
    if [ -n "$lock_count" ] && [ "$lock_count" -gt 0 ]; then
      echo ""
      echo "============================================================"
      echo "[WARNING] ACTIVE LOCKS ($lock_count) — check before editing"
      echo "============================================================"
      echo "$locks" | jq -r '.locks[] | "[DEV MODE] LOCK: \(.project_key) / \(.resource)\n  Held by: \(.session_id)\n  Reason:  \(.description // "none")\n  Expires: \(.expires_at // "unknown")\n---"'
      echo "============================================================"
      echo ""
    fi
  fi
fi

exit 0