#!/bin/bash
input=$(cat)
cwd=$(echo "$input" | jq -r '.cwd')
model=$(echo "$input" | jq -r '.model.display_name // empty')
model_id=$(echo "$input" | jq -r '.model.id // empty')
five_pct=$(echo "$input" | jq -r '.rate_limits.five_hour.used_percentage // empty')
five_reset=$(echo "$input" | jq -r '.rate_limits.five_hour.resets_at // empty')
week_pct=$(echo "$input" | jq -r '.rate_limits.seven_day.used_percentage // empty')
week_reset=$(echo "$input" | jq -r '.rate_limits.seven_day.resets_at // empty')
ctx_pct=$(echo "$input" | jq -r '.context_window.used_percentage // empty')

branch=$(git -C "$cwd" --no-optional-locks symbolic-ref --short HEAD 2>/dev/null)

short_cwd="${cwd/#$HOME/\~}"
printf "\033[00;37m%s\033[00m" "$short_cwd"

[ -n "$branch" ] && printf " \033[00;37m[%s]\033[00m" "$branch"
[ -n "$model" ] && printf " \033[38;5;173m%s\033[00m" "$model"

# Форматирует оставшееся время до сброса лимита
fmt_remaining() {
  local reset_ts="$1"
  local now
  now=$(date +%s)
  local diff=$(( reset_ts - now ))
  [ "$diff" -le 0 ] && echo "скоро" && return
  local d=$(( diff / 86400 ))
  local h=$(( (diff % 86400) / 3600 ))
  local m=$(( (diff % 3600) / 60 ))
  if [ "$d" -gt 0 ]; then
    echo "${d}д${h}ч"
  elif [ "$h" -gt 0 ]; then
    echo "${h}ч${m}м"
  else
    echo "${m}м"
  fi
}

# Возвращает ANSI-цвет по проценту: зелёный <40%, жёлтый 40-60%, красный >=60%
pct_color() {
  local pct="$1"
  if [ "$pct" -lt 40 ]; then
    printf '\033[00;32m'
  elif [ "$pct" -lt 60 ]; then
    printf '\033[00;33m'
  else
    printf '\033[00;31m'
  fi
}

# --- Баланс DeepSeek ---
# Моментально показываем кэшированный баланс, в фоне обновляем через API.
if [[ "$model_id" == *deepseek* ]]; then
  cache_file="$HOME/.cache/ai-setup/deepseek_balance"
  if [ -f "$cache_file" ]; then
    balance=$(head -1 "$cache_file")
    [ -n "$balance" ] && printf " \033[00;35m\$%s\033[00m" "$balance"
  fi

  # Фоновое обновление баланса (не чаще раза в 30 секунд)
  refresh_ts="$HOME/.cache/ai-setup/deepseek_balance_refresh_ts"
  now=$(date +%s)
  last=$(cat "$refresh_ts" 2>/dev/null || echo 0)
  if [ $(( now - last )) -gt 30 ]; then
    key_file="$HOME/.config/ai-setup/deepseek_key"
    if [ -f "$key_file" ]; then
      echo "$now" > "$refresh_ts" 2>/dev/null
      (
        api_key=$(cat "$key_file")
        resp=$(curl -s --max-time 10 "https://api.deepseek.com/user/balance" \
          -H "Authorization: Bearer $api_key" \
          -H "Accept: application/json" 2>/dev/null)
        if [ -n "$resp" ]; then
          new_balance=$(echo "$resp" | python3 -c "
import sys, json
d = json.load(sys.stdin)
infos = d.get('balance_infos', [])
if infos:
    curr = infos[0].get('currency', '')
    total = infos[0].get('total_balance', '0')
    print(f'{total} {curr}')
" 2>/dev/null)
          if [ -n "$new_balance" ]; then
            echo "$new_balance" > "$cache_file"
          fi
        fi
      ) &
    fi
  fi
else
  # Рейт-лимиты для НЕ-DeepSeek провайдеров
  # Кеш специфичен для провайдера (по model_id) чтобы не смешивать claude/kimi/openrouter
  _cache_key=$(echo "${model_id:-unknown}" | sed 's/[^a-zA-Z0-9._-]/_/g')
  RATE_CACHE="$HOME/.cache/ai-setup/rate_limits_${_cache_key}.cache"
  mkdir -p "$HOME/.cache/ai-setup"

  # Если есть свежие данные - сохранить в кеш
  if [ -n "$five_pct" ] || [ -n "$week_pct" ]; then
    {
      echo "FIVE_PCT=${five_pct}"
      echo "FIVE_RESET=${five_reset}"
      echo "WEEK_PCT=${week_pct}"
      echo "WEEK_RESET=${week_reset}"
    } > "$RATE_CACHE"
  fi

  # Если нет данных - читать из кеша (старт сессии до первого запроса)
  if [ -z "$five_pct" ] && [ -z "$week_pct" ] && [ -f "$RATE_CACHE" ]; then
    # shellcheck source=/dev/null
    source "$RATE_CACHE" 2>/dev/null
    five_pct="${FIVE_PCT:-}"
    five_reset="${FIVE_RESET:-}"
    week_pct="${WEEK_PCT:-}"
    week_reset="${WEEK_RESET:-}"
  fi

  if [ -n "$five_pct" ] && [ -n "$five_reset" ]; then
    five_int=$(printf '%.0f' "$five_pct")
    remaining=$(fmt_remaining "$five_reset")
    color=$(pct_color "$five_int")
    printf " %s%s:%s%%\033[00m" "$color" "$remaining" "$five_int"
  fi
  if [ -n "$week_pct" ] && [ -n "$week_reset" ]; then
    week_int=$(printf '%.0f' "$week_pct")
    remaining=$(fmt_remaining "$week_reset")
    color=$(pct_color "$week_int")
    printf " %s%s:%s%%\033[00m" "$color" "$remaining" "$week_int"
  fi
fi

# ctx:0% при старте новой сессии (нет данных от API)
[ -z "$ctx_pct" ] && ctx_pct="0"

if [ -n "$ctx_pct" ]; then
  ctx_int=$(printf '%.0f' "$ctx_pct")
  color=$(pct_color "$ctx_int")
  printf " %sctx:%s%%\033[00m" "$color" "$ctx_int"

  # Звуковой сигнал при первом достижении 60%
  alert_file="$HOME/.cache/ai-setup/ctx_alert_state"
  if [ "$ctx_int" -ge 60 ]; then
    if [ ! -f "$alert_file" ] || [ "$(cat "$alert_file")" != "alerted" ]; then
      mkdir -p "$HOME/.cache/ai-setup"
      echo "alerted" > "$alert_file"
      (timeout 1s paplay /usr/share/sounds/freedesktop/stereo/alarm-clock-elapsed.oga 2>/dev/null; true) &
    fi
  elif [ "$ctx_int" -lt 50 ]; then
    rm -f "$alert_file" 2>/dev/null
  fi
fi
exit 0