statusline.sh

#!/bin/bash
# Single line: Model | tokens | %used | %remain | think | 5h bar @reset | 7d bar @reset | extra

set -f  # disable globbing

input=$(cat)

if [ -z "$input" ]; then
    printf "Claude"
    exit 0
fi

# ANSI colors matching oh-my-posh theme
blue='\033[38;2;0;153;255m'
orange='\033[38;2;255;176;85m'
green='\033[38;2;0;160;0m'
cyan='\033[38;2;46;149;153m'
red='\033[38;2;255;85;85m'
yellow='\033[38;2;230;200;0m'
white='\033[38;2;220;220;220m'
dim='\033[2m'
reset='\033[0m'

# Format token counts (e.g., 50k / 200k)
format_tokens() {
    local num=$1
    if [ "$num" -ge 1000000 ]; then
        awk "BEGIN {printf \"%.1fm\", $num / 1000000}"
    elif [ "$num" -ge 1000 ]; then
        awk "BEGIN {printf \"%.0fk\", $num / 1000}"
    else
        printf "%d" "$num"
    fi
}

# Format number with commas (e.g., 134,938)
format_commas() {
    printf "%'d" "$1"
}

# Return color escape based on usage percentage
# Usage: usage_color <pct>
usage_color() {
    local pct=$1
    if [ "$pct" -ge 90 ]; then echo "$red"
    elif [ "$pct" -ge 70 ]; then echo "$orange"
    elif [ "$pct" -ge 50 ]; then echo "$yellow"
    else echo "$green"
    fi
}

# ===== Extract data from JSON =====
model_name=$(echo "$input" | jq -r '.model.display_name // "Claude"')

# Context window
size=$(echo "$input" | jq -r '.context_window.context_window_size // 200000')
[ "$size" -eq 0 ] 2>/dev/null && size=200000

# Token usage
input_tokens=$(echo "$input" | jq -r '.context_window.current_usage.input_tokens // 0')
cache_create=$(echo "$input" | jq -r '.context_window.current_usage.cache_creation_input_tokens // 0')
cache_read=$(echo "$input" | jq -r '.context_window.current_usage.cache_read_input_tokens // 0')
current=$(( input_tokens + cache_create + cache_read ))

used_tokens=$(format_tokens $current)
total_tokens=$(format_tokens $size)

if [ "$size" -gt 0 ]; then
    pct_used=$(( current * 100 / size ))
else
    pct_used=0
fi
pct_remain=$(( 100 - pct_used ))

used_comma=$(format_commas $current)
remain_comma=$(format_commas $(( size - current )))

# Check reasoning effort
settings_path="$HOME/.claude/settings.json"
effort_level="medium"
if [ -n "$CLAUDE_CODE_EFFORT_LEVEL" ]; then
    effort_level="$CLAUDE_CODE_EFFORT_LEVEL"
elif [ -f "$settings_path" ]; then
    effort_val=$(jq -r '.effortLevel // empty' "$settings_path" 2>/dev/null)
    [ -n "$effort_val" ] && effort_level="$effort_val"
fi

# ===== Build single-line output =====
out=""
out+="${blue}${model_name}${reset}"

# Current working directory
cwd=$(echo "$input" | jq -r '.cwd // empty')
if [ -n "$cwd" ]; then
    display_dir="${cwd##*/}"
    git_branch=$(git -C "${cwd}" rev-parse --abbrev-ref HEAD 2>/dev/null)
    out+=" ${dim}|${reset} "
    out+="${cyan}${display_dir}${reset}"
    if [ -n "$git_branch" ]; then
        out+="${dim}@${reset}${green}${git_branch}${reset}"
        git_stat=$(git -C "${cwd}" diff --numstat 2>/dev/null | awk '{a+=$1; d+=$2} END {if (a+d>0) printf "+%d -%d", a, d}')
        [ -n "$git_stat" ] && out+=" ${dim}(${reset}${green}${git_stat%% *}${reset} ${red}${git_stat##* }${reset}${dim})${reset}"
    fi
fi

out+=" ${dim}|${reset} "
out+="${orange}${used_tokens}/${total_tokens}${reset} ${dim}(${reset}${green}${pct_used}%${reset}${dim})${reset}"
out+=" ${dim}|${reset} "
out+="effort: "
case "$effort_level" in
    low)    out+="${dim}low${reset}" ;;
    medium) out+="${orange}med${reset}" ;;
    *)      out+="${green}high${reset}" ;;
esac

# ===== Cross-platform OAuth token resolution (from statusline.sh) =====
# Tries credential sources in order: env var → macOS Keychain → Linux creds file → GNOME Keyring
get_oauth_token() {
    local token=""

    # 1. Explicit env var override
    if [ -n "$CLAUDE_CODE_OAUTH_TOKEN" ]; then
        echo "$CLAUDE_CODE_OAUTH_TOKEN"
        return 0
    fi

    # 2. macOS Keychain
    if command -v security >/dev/null 2>&1; then
        local blob
        blob=$(security find-generic-password -s "Claude Code-credentials" -w 2>/dev/null)
        if [ -n "$blob" ]; then
            token=$(echo "$blob" | jq -r '.claudeAiOauth.accessToken // empty' 2>/dev/null)
            if [ -n "$token" ] && [ "$token" != "null" ]; then
                echo "$token"
                return 0
            fi
        fi
    fi

    # 3. Linux credentials file
    local creds_file="${HOME}/.claude/.credentials.json"
    if [ -f "$creds_file" ]; then
        token=$(jq -r '.claudeAiOauth.accessToken // empty' "$creds_file" 2>/dev/null)
        if [ -n "$token" ] && [ "$token" != "null" ]; then
            echo "$token"
            return 0
        fi
    fi

    # 4. GNOME Keyring via secret-tool
    if command -v secret-tool >/dev/null 2>&1; then
        local blob
        blob=$(timeout 2 secret-tool lookup service "Claude Code-credentials" 2>/dev/null)
        if [ -n "$blob" ]; then
            token=$(echo "$blob" | jq -r '.claudeAiOauth.accessToken // empty' 2>/dev/null)
            if [ -n "$token" ] && [ "$token" != "null" ]; then
                echo "$token"
                return 0
            fi
        fi
    fi

    echo ""
}

# ===== LINE 2 & 3: Usage limits with progress bars (cached) =====
cache_file="/tmp/claude/statusline-usage-cache.json"
cache_max_age=60  # seconds between API calls
mkdir -p /tmp/claude

needs_refresh=true
usage_data=""

# Check cache — shared across all Claude Code instances to avoid rate limits
if [ -f "$cache_file" ]; then
    cache_mtime=$(stat -c %Y "$cache_file" 2>/dev/null || stat -f %m "$cache_file" 2>/dev/null)
    now=$(date +%s)
    cache_age=$(( now - cache_mtime ))
    if [ "$cache_age" -lt "$cache_max_age" ]; then
        needs_refresh=false
    fi
    usage_data=$(cat "$cache_file" 2>/dev/null)
fi

# Fetch fresh data if cache is stale
if $needs_refresh; then
    # Touch cache immediately so other instances don't also fetch
    touch "$cache_file" 2>/dev/null

    token=$(get_oauth_token)
    if [ -n "$token" ] && [ "$token" != "null" ]; then
        response=$(curl -s --max-time 10 \
            -H "Accept: application/json" \
            -H "Content-Type: application/json" \
            -H "Authorization: Bearer $token" \
            -H "anthropic-beta: oauth-2025-04-20" \
            -H "User-Agent: claude-code/2.1.34" \
            "https://api.anthropic.com/api/oauth/usage" 2>/dev/null)
        # Only cache valid usage responses (not error/rate-limit JSON)
        if [ -n "$response" ] && echo "$response" | jq -e '.five_hour' >/dev/null 2>&1; then
            usage_data="$response"
            echo "$response" > "$cache_file"
        fi
    fi
fi

# Cross-platform ISO to epoch conversion
# Converts ISO 8601 timestamp (e.g. "2025-06-15T12:30:00Z" or "2025-06-15T12:30:00.123+00:00") to epoch seconds.
# Properly handles UTC timestamps and converts to local time.
iso_to_epoch() {
    local iso_str="$1"

    # Try GNU date first (Linux) — handles ISO 8601 format automatically
    local epoch
    epoch=$(date -d "${iso_str}" +%s 2>/dev/null)
    if [ -n "$epoch" ]; then
        echo "$epoch"
        return 0
    fi

    # BSD date (macOS) - handle various ISO 8601 formats
    local stripped="${iso_str%%.*}"          # Remove fractional seconds (.123456)
    stripped="${stripped%%Z}"                 # Remove trailing Z
    stripped="${stripped%%+*}"               # Remove timezone offset (+00:00)
    stripped="${stripped%%-[0-9][0-9]:[0-9][0-9]}"  # Remove negative timezone offset

    # Check if timestamp is UTC (has Z or +00:00 or -00:00)
    if [[ "$iso_str" == *"Z"* ]] || [[ "$iso_str" == *"+00:00"* ]] || [[ "$iso_str" == *"-00:00"* ]]; then
        # For UTC timestamps, parse with timezone set to UTC
        epoch=$(env TZ=UTC date -j -f "%Y-%m-%dT%H:%M:%S" "$stripped" +%s 2>/dev/null)
    else
        epoch=$(date -j -f "%Y-%m-%dT%H:%M:%S" "$stripped" +%s 2>/dev/null)
    fi

    if [ -n "$epoch" ]; then
        echo "$epoch"
        return 0
    fi

    return 1
}

# Format ISO reset time to compact local time
# Usage: format_reset_time <iso_string> <style: time|datetime|date>
format_reset_time() {
    local iso_str="$1"
    local style="$2"
    { [ -z "$iso_str" ] || [ "$iso_str" = "null" ]; } && return

    # Parse ISO datetime and convert to local time (cross-platform)
    local epoch
    epoch=$(iso_to_epoch "$iso_str")
    [ -z "$epoch" ] && return

    # Format based on style
    # Try GNU date first (Linux), then BSD date (macOS)
    # Previous implementation piped BSD date through sed/tr, which always returned
    # exit code 0 from the last pipe stage, preventing the GNU date fallback from
    # ever executing on Linux.
    local formatted=""
    case "$style" in
        time)
            formatted=$(date -d "@$epoch" +"%H:%M" 2>/dev/null) || \
            formatted=$(date -j -r "$epoch" +"%H:%M" 2>/dev/null)
            ;;
        datetime)
            formatted=$(date -d "@$epoch" +"%b %-d, %H:%M" 2>/dev/null) || \
            formatted=$(date -j -r "$epoch" +"%b %-d, %H:%M" 2>/dev/null)
            ;;
        *)
            formatted=$(date -d "@$epoch" +"%b %-d" 2>/dev/null) || \
            formatted=$(date -j -r "$epoch" +"%b %-d" 2>/dev/null)
            ;;
    esac
    [ -n "$formatted" ] && echo "$formatted"
}

sep=" ${dim}|${reset} "

if [ -n "$usage_data" ] && echo "$usage_data" | jq -e '.five_hour' >/dev/null 2>&1; then
    # ---- 5-hour (current) ----
    five_hour_pct=$(echo "$usage_data" | jq -r '.five_hour.utilization // 0' | awk '{printf "%.0f", $1}')
    five_hour_reset_iso=$(echo "$usage_data" | jq -r '.five_hour.resets_at // empty')
    five_hour_reset=$(format_reset_time "$five_hour_reset_iso" "time")
    five_hour_color=$(usage_color "$five_hour_pct")

    out+="${sep}${white}5h${reset} ${five_hour_color}${five_hour_pct}%${reset}"
    [ -n "$five_hour_reset" ] && out+=" ${dim}@${five_hour_reset}${reset}"

    # ---- 7-day (weekly) ----
    seven_day_pct=$(echo "$usage_data" | jq -r '.seven_day.utilization // 0' | awk '{printf "%.0f", $1}')
    seven_day_reset_iso=$(echo "$usage_data" | jq -r '.seven_day.resets_at // empty')
    seven_day_reset=$(format_reset_time "$seven_day_reset_iso" "datetime")
    seven_day_color=$(usage_color "$seven_day_pct")

    out+="${sep}${white}7d${reset} ${seven_day_color}${seven_day_pct}%${reset}"
    [ -n "$seven_day_reset" ] && out+=" ${dim}@${seven_day_reset}${reset}"

    # ---- Extra usage ----
    extra_enabled=$(echo "$usage_data" | jq -r '.extra_usage.is_enabled // false')
    if [ "$extra_enabled" = "true" ]; then
        extra_pct=$(echo "$usage_data" | jq -r '.extra_usage.utilization // 0' | awk '{printf "%.0f", $1}')
        extra_used=$(echo "$usage_data" | jq -r '.extra_usage.used_credits // 0' | LC_NUMERIC=C awk '{printf "%.2f", $1/100}')
        extra_limit=$(echo "$usage_data" | jq -r '.extra_usage.monthly_limit // 0' | LC_NUMERIC=C awk '{printf "%.2f", $1/100}')
        # Validate: if values are empty or contain unexpanded variables, show simple "enabled" label
        if [ -n "$extra_used" ] && [ -n "$extra_limit" ] && [[ "$extra_used" != *'$'* ]] && [[ "$extra_limit" != *'$'* ]]; then
            extra_color=$(usage_color "$extra_pct")
            out+="${sep}${white}extra${reset} ${extra_color}\$${extra_used}/\$${extra_limit}${reset}"
        else
            out+="${sep}${white}extra${reset} ${green}enabled${reset}"
        fi
    fi
else
    # No valid usage data — show placeholders
    out+="${sep}${white}5h${reset} ${dim}-${reset}"
    out+="${sep}${white}7d${reset} ${dim}-${reset}"
fi

# Output single line
printf "%b" "$out"

exit 0