#!/usr/bin/env bash
# Bake the theme and its parts into the pages that use them.
#
# Usage:
#   ./ctrl/theme.sh             # bake — rewrite every generated block
#   ./ctrl/theme.sh check       # fail if any page is stale; changes nothing
#   ./ctrl/theme.sh new [title] # a scaffold page to start from
#   ./ctrl/theme.sh run FILE [--list|--check] [--only NAME]
#                               # every page a run file lists, each with a contract
#   ./ctrl/theme.sh parts       # what can be added, and the markup that adds it
#   ./ctrl/theme.sh export [name...]   # the contract for a subset, as one doc
#
# `export` is for handing a vetted LLM what it needs to write an ad-hoc page —
# the chosen parts, their markup, and the tokens resolved to literal values, so
# the document stands alone. Naming parts is the point: hand over everything and
# you get back a page built from Vue components that cannot run standalone.
#
#   ./ctrl/theme.sh export panel split > /tmp/contract.md
#
# Call the script directly when piping; `make` echoes its recipe to stdout.
# For whole-repo context this is the wrong tool — station/tools/distill already
# flattens a tree to one budgeted document.
#
# A page that says `background: var(--bg)` and never gets `--bg` is UNSTYLED,
# not merely unbranded — the declaration is invalid at computed-value time. That
# is why every page carries a baked default, and why `check` is worth running.
#
# This exists because bake.py was reachable by no command at all: not from the
# Makefile, not from ctrl/, not from build.py. A drift check nobody runs is a
# drift check that reports nothing, and the evidence was already on disk —
# histgen's page linked /theme.css for months, was missing from the old
# hardcoded page list, and so was never baked once.
set -e

# Where the caller stood. A run file is named relative to there, and the cd below
# would otherwise make `run ./theme.toml` mean a different file.
CALLER_DIR="$PWD"

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT_DIR="$(dirname "$SCRIPT_DIR")"
cd "$ROOT_DIR/soleprint"

PYTHON="${PYTHON:-python3}"

case "${1:-bake}" in
    bake)  exec "$PYTHON" common/theme/bake.py ;;
    check) exec "$PYTHON" common/theme/bake.py --check ;;
    parts)
        exec "$PYTHON" common/theme/bake.py --parts
        ;;
    run)
        # A run file: every page a project has, its context, and a contract per
        # page for the LLM. See soleprint/common/theme/theme.example.toml.
        shift
        args=() file="" prev=""
        for a in "$@"; do
            if [[ -z "$file" && "$a" != -* && "$prev" != "--only" ]]; then
                file="$(cd "$CALLER_DIR" && realpath -m -- "$a")"
                args+=("$file")
            else
                args+=("$a")
            fi
            prev="$a"
        done
        exec "$PYTHON" common/theme/bake.py --run "${args[@]}"
        ;;
    new)
        shift
        exec "$PYTHON" common/theme/bake.py --new "$@"
        ;;
    export)
        shift
        exec "$PYTHON" common/theme/bake.py --export "$@"
        ;;
    *)
        echo "Unknown: $1" >&2
        echo "Usage: ./ctrl/theme.sh [new [title]|parts|bake|check|export [name...]|run FILE]" >&2
        exit 1
        ;;
esac