#!/bin/sh

# hugo cli frontend
# needs: sh, fzf, grep, cat, cut tr, date (bsd date...), hugo, vim
# deployments are handled using a Makefile (bring your own...)

cd "$HOME/blog"

# extra options appended to the menu
_extra="---
deploy-test * Test Deployment
deploy-prod * Prod Deployment
maintenance * Maintenance Mode
new * New Post
quit * Quit Main Menu"

# main loop
while [ -z "$_quit" ]
do

# parse csv, build and show list
_selection=$(hugo list all \
    | grep -Ev ^path\|_index \
    | while read _line
do
    # csv fields:
    # 1: path
    # 2: slug
    # 3: title
    # 4: date
    # 5: expiryDate
    # 6: publishDate
    # 7: draft
    # 8: permalink
    # 9: kind
    # 10: section 
    _file="$(echo $_line | cut -d"," -f1)"
    _title="$(echo $_line | cut -d"," -f3)"
    _draft=$(echo $_line | cut -d"," -f7)
    _draft_fmt=$([ "$_draft" == "true" ] && echo "(draft)")
    _date="$(echo $_line | cut -d"," -f4)"
    _date_fmt=$(date -f "%Y-%m-%dT%H:%M:%S" -j "$_date" +"%Y-%m-%d %H:%M")

    echo "$_file * $_date_fmt | $_title $_draft_fmt"

done | (sort -t" " -k 2; echo "$_extra") \
     | fzf -e --tac +s --with-nth 2.. \
     | cut -d" " -f1)

### functions
_new() {
    unset _newquit
    while [ -z "$_newquit" ]
    do
    unset _newtitle
    unset _filename

    echo "Enter Post Title"
    echo -n ": "
    read _newtitle
    if [ -n "$_newtitle" ]
    then
        # Welcome to my awful filename generator / sanitizer.
        # Improvements are welcome!
        _filename=$(echo "$_newtitle" \
            | tr -d '?!%$:\\' \
            | tr ' ./' '_' \
            | tr -s '_' \
            | tr '[:upper:]' '[:lower:]' \
            | sed 's/_$//g;s/^_//g')
    fi
    if [ -n "$_filename" ]
    then
        echo "Creating:"
        echo "File: content/posts/$_filename.md"
        echo "Title: $_newtitle"
        echo -n "Ok? [Y/n]: "
        read _ok
        case "$_ok" in
            [nN]) ;;
            *) hugo new content --editor=vim "content/posts/$_filename.md"
               _newquit=1
               ;;
        esac
    else
        echo "No title entered. Returning to menu."
        _newquit=1
        sleep 1
    fi
done
}
_edit_entry() {
    unset _quitmenu
    while [ -z "$_quitmenu" ]
    do
        clear
        _f="${_newname:-$1}"
        echo "--- $_f:"
        echo
        head -15 "$_f"
        echo "---"
        echo
        echo "Filename: $(basename "$_f")"
        echo "Options: [E]dit, [D]elete, [R]ename, [T]oggle draft, [Q]uit Edit Menu"
        echo -n ": "
        read _opt
        case $_opt in
            [dD]) mkdir -p .trash; mv -f "$_f" .trash/
                  _quitmenu=1 ;;
            [qQ]) return ;;
            [tT]) grep -qE '^draft.*=.*false' "$_f" \
                    && sed -i 's/^draft.*=.*false/draft = true/' "$_f" \
                    || sed -i 's/^draft.*=.*true/draft = false/' "$_f" ;;
            [rR]) echo "old: $(basename "$_f")"
               echo -n "new: "
               read _newname;
               echo -n "ok? [Y/n]: "
               read _ok
               case "$_ok" in
                   [nN]) unset _newname ;;
                   *) _newname="content/posts/$_newname"
                      mv -vf "$_f" "$_newname"
                      ;;
               esac
               ;;
            *) vim "$_f" ;;
           [qQ]) _quitmenu=1 ;;
        esac
    done
}

case "$_selection" in
    new) _new ;;
    ---) ;;
    deploy-test) make update ;;
    deploy-prod) make prod ;;
    maintenance) make maintenance ;;
    quit) _quit=1; echo "Good bye." ;;
    *) [ -n "$_selection" ] \
         && _edit_entry "$_selection" \
         || _quit=1 ;;
esac
done