#!/bin/sh

if ! test -d meta; then
    echo "${0##*/}: fatal: directory 'meta' not found" >&2
    exit 2
fi

if ! test -d .git; then
    echo "${0##*/}: fatal: repo (.git) not found -- use 'initrepo' first" >&2
    exit 2
fi

name=$(cat meta/name)

. "$(dirname $0)"/libcomain

if test ! -d comain; then
    dief 2 "directory 'comain' not found"
fi

desc="$(head -1 meta/desc)"
site="$(head -1 meta/site)"
code="$(head -1 meta/code)"
git="$(head -1 meta/git)"
sp=$((52 - ${#name} - ${#site}))
sp="$(printf "%${sp}s")"
prefix=$(sanitize $name)
year=$(date +%Y)

run cat > h <<EOF
/* This file is part of $name$sp$site
 * Copyright (C) 2023 Olivier Brunel                          jjk@jjacky.com */
/* SPDX-License-Identifier: GPL-2.0-only */
EOF

git checkout -b dev
git checkout -b dev-wip
git add h
git commit -m '[wip] Add h'

run cp -a comain/meta/deps.tpl/limb meta/deps

run mkdir src/$name
run touch src/$name/+limb

sedesc()
{
    printf %s "$*" | sed -e 's/\//\\\//g'
}

sed_site="$(sedesc $site)"
sed_code="$(sedesc $code)"
sed_git="$(sedesc $git)"
sed_desc="$(sedesc $desc)"
sedtpl()
{
    if test $# -ne 2; then dief 2 "wrong sedtpl invocation"; fi
    run sed -e s/\$name/$name/g -e s/\$prefix/$prefix/g -e s/\$year/$year/g \
        -e s/\$site/$sed_site/g -e s/\$code/$sed_code/g -e s/\$git/$sed_git/g \
        -e s/\$desc/"$sed_desc"/g \
        "comain/tpl/$1" >> "$2"
}

cp h src/$name/$name.c
sedtpl main.c src/$name/$name.c
run rm project.mk
sedtpl project.mk project.mk
run mkdir src/doc
sedtpl main.md src/doc/$name.1.md
sedtpl gitignore .gitignore

git add . .gitignore
git commit --message="First commit"

git checkout dev
git cherry-pick dev-wip
git rebase --onto dev dev-wip~2 dev-wip

make
./configure

echo "done."