#!/usr/bin/env bash
# Comma plugin for Claude Code — one-line installer.
#
# Usage:
#   curl -fsSL https://commareports.com/install.sh | bash
#
# What this does:
#   1. Verifies the `claude` CLI is on PATH.
#   2. Adds the Comma marketplace (`comma/comma`).
#   3. Installs the `comma` plugin.
#   4. Prompts for a COMMA_API_TOKEN and writes ~/.config/comma/env.
#   5. Prints the env line you need to add to your shell profile.
#
# Safe by design:
#   - No sudo.
#   - No binary downloads. Only invokes `claude`, the CLI you already
#     have installed.
#   - Writes one file (~/.config/comma/env, 0600) and nothing else.

set -eu

MARKETPLACE="comma/comma"
PLUGIN="comma@comma"
CONFIG_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/comma"
ENV_FILE="$CONFIG_DIR/env"
SETTINGS_URL="https://commareports.com/settings#tokens"

bold() { printf '\033[1m%s\033[0m\n' "$*"; }
warn() { printf '\033[33m%s\033[0m\n' "$*" >&2; }
err()  { printf '\033[31m%s\033[0m\n' "$*" >&2; }

bold "Comma plugin for Claude Code"
echo

if ! command -v claude >/dev/null 2>&1; then
    err "claude CLI not found on PATH."
    err "Install Claude Code first: https://docs.anthropic.com/claude-code"
    exit 1
fi

if [ ! -d "$HOME/.claude" ]; then
    warn "~/.claude not found — Claude Code may not be initialized yet."
    warn "The install will still try; run 'claude' once afterward if it fails."
fi

echo "1/4  Adding marketplace $MARKETPLACE..."
if ! claude plugin marketplace add "$MARKETPLACE" 2>/dev/null; then
    warn "    (marketplace may already be added — continuing)"
fi

echo "2/4  Installing plugin $PLUGIN..."
if ! claude plugin install "$PLUGIN"; then
    err "plugin install failed. Try: claude plugin install $PLUGIN"
    exit 1
fi

echo "3/4  Configuring API token..."
mkdir -p "$CONFIG_DIR"
chmod 700 "$CONFIG_DIR"

# Skip the prompt if a token is already in env or in the env file —
# this lets re-runs (and CI) work without interactive input.
EXISTING_TOKEN=""
if [ -n "${COMMA_API_TOKEN:-}" ]; then
    EXISTING_TOKEN="$COMMA_API_TOKEN"
elif [ -f "$ENV_FILE" ] && grep -q '^COMMA_API_TOKEN=' "$ENV_FILE"; then
    EXISTING_TOKEN="$(grep '^COMMA_API_TOKEN=' "$ENV_FILE" | head -1 | cut -d= -f2-)"
fi

if [ -n "$EXISTING_TOKEN" ]; then
    echo "    Using existing token (set COMMA_API_TOKEN= to override)."
    TOKEN="$EXISTING_TOKEN"
else
    echo "    Get a token at: $SETTINGS_URL"
    echo "    It will start with: comma_sk_"
    if [ -t 0 ]; then
        printf "    Paste your token (input hidden): "
        # Read silently so the token isn't echoed.
        stty -echo 2>/dev/null || true
        IFS= read -r TOKEN || TOKEN=""
        stty echo 2>/dev/null || true
        echo
    else
        warn "    No TTY available — skipping token prompt."
        warn "    Set COMMA_API_TOKEN in your shell, or write it to $ENV_FILE manually."
        TOKEN=""
    fi
fi

if [ -n "$TOKEN" ]; then
    case "$TOKEN" in
        comma_sk_*) ;;
        *)
            warn "    Token doesn't start with comma_sk_ — saving anyway, but it may not work."
            ;;
    esac
    umask 077
    printf 'COMMA_API_TOKEN=%s\n' "$TOKEN" > "$ENV_FILE"
    chmod 600 "$ENV_FILE"
    echo "    Wrote $ENV_FILE"
fi

echo "4/4  Done."
echo
bold "Next step:"
echo "  Export the token in the shell that launches Claude Code:"
echo
echo "    # Add to ~/.zshrc, ~/.bashrc, or ~/.config/fish/config.fish:"
echo "    set -a; . $ENV_FILE; set +a"
echo
echo "  Or just:"
echo "    export COMMA_API_TOKEN=comma_sk_..."
echo
echo "Then restart Claude Code and try:"
echo "  /comma-publish     publish the last reply as a report"
echo "  /comma-search ...  search your reports"
echo "  /comma-link <id>   open a report by id"
echo