#!/bin/bash
# shellcheck disable=SC2015
set -euo pipefail

aspell -v > /dev/null && [ "$#" -eq 1 ] || {
    echo "Usage:
  $(basename "$0") check
or
  $(basename "$0") fix

Note: this script needs aspell to run"
    exit 1
}

action=$1

dict_dir="$(git rev-parse --show-toplevel)/$(dirname "$0")/dict"
echo "${dict_dir}"
dict="${dict_dir}/.aspell.en"

export fail=0

aspellcmd() {
    local mode
    mode="${1}"
    shift
    aspell --mode "${mode}" --camel-case --add-filter html --add-html-skip code -p "$dict" "$@"
}

check() {
    local mode file typos ntypos
    mode="$1"
    file="$2"

    echo "!! Spellchecking ${file}"
    typos="$(mktemp)"
    echo "!! Typos:"
    aspellcmd "$mode" list < "$file" |
        sort -u |
        tee "$typos"
    ntypos="$(wc -l "$typos")"
    rm "$typos"
    [ "$ntypos" = 0 ] || export fail=1
}

fix() {
    local mode file
    mode=$1
    file=$2

    aspellcmd "$mode" check "$file"
}

case $action in
    fix)
        for i in $(git ls-tree -r --name-only HEAD | grep -E '_schema.erl$'); do
            fix perl "$i"
        done
        # for i in $(git ls-tree -r --name-only HEAD | grep -E '.md$'); do
        #     fix markdown $i
        # done
    ;;
    *)
        check markdown _build/emqx/lib/emqx_dashboard/priv/www/static/config.md
esac


if [ $fail -eq 1 ]; then
    echo
    echo "!! Bad spelling in the documentation. Run script in fix mode to resolve problems."
    exit 1
fi