1#!/bin/sh
2# planning-with-files: set or display the active plan pointer.
3#
4# Usage:
5#   set-active-plan.sh <plan_id>   — pin .planning/.active_plan to plan_id
6#   set-active-plan.sh             — print the current active plan (if any)
7#
8# The active plan is stored in .planning/.active_plan and is read by
9# resolve-plan-dir.sh when no $PLAN_ID env var is set.
10 
11set -e
12 
13PLAN_ROOT="${PWD}/.planning"
14ACTIVE_FILE="${PLAN_ROOT}/.active_plan"
15 
16# No args → show current active plan
17if [ "${1:-}" = "" ]; then
18    if [ -f "${ACTIVE_FILE}" ]; then
19        plan_id="$(tr -d '\r\n' < "${ACTIVE_FILE}")"
20        if [ -n "${plan_id}" ] && [ -d "${PLAN_ROOT}/${plan_id}" ]; then
21            echo "Active plan: ${plan_id}"
22            echo "Path: ${PLAN_ROOT}/${plan_id}"
23        elif [ -n "${plan_id}" ]; then
24            echo "Active plan pointer: ${plan_id} (directory not found — stale pointer)"
25        else
26            echo "No active plan set."
27        fi
28    else
29        echo "No active plan set."
30    fi
31    exit 0
32fi
33 
34PLAN_ID="$1"
35PLAN_DIR="${PLAN_ROOT}/${PLAN_ID}"
36 
37if [ ! -d "${PLAN_DIR}" ]; then
38    echo "Error: plan directory not found: ${PLAN_DIR}" >&2
39    echo "Run: init-session.sh \"${PLAN_ID}\" to create it, or check .planning/ for available plans." >&2
40    exit 1
41fi
42 
43mkdir -p "${PLAN_ROOT}"
44printf "%s\n" "${PLAN_ID}" > "${ACTIVE_FILE}"
45 
46echo "Active plan set to: ${PLAN_ID}"
47echo "Path: ${PLAN_DIR}"
48echo ""
49echo "To pin this terminal session only:"
50echo "  export PLAN_ID=${PLAN_ID}"
51