#________ colorscheme _______
source "%val{config}/colorscheme.kak"

#________ options ___________
# keep status bar in the default place
set-option -add global ui_options terminal_status_on_top=false

# set an invisible padding char
set-option -add global ui_options terminal_padding_char= 

# always keep two lines and two columns displayed around the cursor
set-option global scrolloff 2,2

# assistant
set-option -add global ui_options terminal_assistant=cat

# __________ commands __________
define-command -override lf-open \
  -docstring 'pick a file with lf' %{
  terminal /bin/sh -c %{
    # Local variables
    kak_buffile=$1 kak_session=$2 kak_client=$3

    # Create temporary file for selection
    lf_tmp=$(mktemp "${TMPDIR:-/tmp}"/lf-open.XXXXXXXXXX)

    # Get working directory of current buffer
    kak_pwd=$(dirname "${kak_buffile}")

    # Pick a file with lf
    $(lf -selection-path "${lf_tmp}" "${kak_pwd}")

    # Get first line of selection file (ignoring multiple selections)
    filename=$(head -n 1 "${lf_tmp}")

    # Only echo a command back if there was a selection
    if [ -n "$filename" ]; then
      # Construct the command to pass to kakoune
      kak_cmd="evaluate-commands -client $kak_client edit $filename"

      # Echo the command back to the parent session
      echo $kak_cmd | kak -p $kak_session
    fi
  } -- %val{buffile} %val{session} %val{client}
}

define-command -override todo \
  -docstring 'edit todo list' %{
  edit '~/areas/meta/todo'
}

define-command -override guix-todo \
  -docstring 'edit todo list' %{
  edit '~/projects/code/org/guix-todo/todo.org'
}

declare-option str radix '~/projects/code/scm/radix'
define-command -override radix \
  -docstring 'edit files in the radix git repository' %{
  execute-keys ":e %opt{radix}/"
}

declare-option str radix_modules "%opt{radix}/radix"
define-command -override modules \
  -docstring 'edit radix modules' %{
  execute-keys ":e %opt{radix_modules}/"
}

declare-option str radix_services "%opt{radix_modules}/services"
define-command -override services \
  -docstring 'edit radix services' %{
  execute-keys ":e %opt{radix_services}/"
}

declare-option str radix_packages "%opt{radix_modules}/packages"
define-command -override packages \
  -docstring 'edit radix packages' %{
  execute-keys ":e %opt{radix_packages}/"
}

declare-option str radix_home_services "%opt{radix_modules}/home/services"
define-command -override home-services \
  -docstring 'edit radix home services' %{
  execute-keys ":e %opt{radix_home_services}/"
}

declare-option str zero '~/projects/code/scm/zero'
define-command -override zero \
  -docstring 'edit files in the zero git repository' %{
  execute-keys ":e %opt{zero}/"
}

declare-option str home "%opt{zero}/home-environments"
define-command -override home \
  -docstring 'edit home declaration' %{
  execute-keys ":e %opt{home}/"
}

declare-option str system "%opt{zero}/operating-systems"
define-command -override system \
  -docstring 'edit system declaration' %{
  execute-keys ":e %opt{system}/"
}

declare-option str home_files "%opt{home}/%sh{whoami}/files"
define-command -override files \
  -docstring 'edit dotfiles' %{
  execute-keys ":e %opt{home_files}/"
}

define-command -override colorscheme-config \
  -docstring 'edit colorscheme configuration file' %{
  edit "%opt{home_files}/.config/kak/autoload/colorscheme.kak"
}

define-command -override config \
  -docstring 'edit kakoune main configuration file' %{
  edit "%opt{home_files}/.config/kak/kakrc"
}

define-command -override rss \
  -docstring 'edit rss feeds file' %{
  edit "%opt{home_files}/.config/newsraft/feeds"
}

define-command -override remind \
  -docstring 'edit reminders' %{
  execute-keys ': e /home/radio/.local/share/reminders/'
}

define-command -override open-buffer-picker \
  -docstring 'open-buffer-picker: Opens buffer picker.' %{
  prompt buffer: -buffer-completion %{ buffer %val{text} }
}

define-command -override toggle-readonly \
  -docstring 'changes buffer readonly option current state' %{
   set-option buffer readonly %sh{ "$kak_opt_readonly" && echo false || echo true }
}

define-command -override qalc \
  -params .. %{echo %sh{qalc ${@}}} \
  -docstring 'compute equation with Qalculate!'
complete-command qalc shell-script-candidates %{
  { echo $(qalc --list-functions | head -n -3)
    echo $(qalc --list-variables | head -n -3) } | tr ' ' '\n' | sort | uniq
}

define-command diff-buffers -override -params 2 \
  -docstring 'show the diff of two buffers'%{
  evaluate-commands %sh{
    file1=$(mktemp)
    file2=$(mktemp)
    echo "
      evaluate-commands -buffer '$1' write -force $file1
      evaluate-commands -buffer '$2' write -force $file2
      edit! -scratch *diff-buffers*
      set buffer filetype diff
      set-register | 'diff -u $file1 $file2; rm $file1 $file2'
      execute-keys !<ret>gg
    "
  }
}
complete-command diff-buffers buffer

# __________ hidden commands __________
define-command -override -hidden edit-from-here %{
  execute-keys ":edit %sh{dirname $kak_buffile}/"
} # edit a file, searching from current file's directory

define-command -override -hidden spawn-terminal-here %{
  set-register b "%sh{pwd}"
  change-directory "%sh{dirname $kak_buffile}"
  evaluate-commands "terminal %sh{echo $SHELL}"
  change-directory "%reg{b}"
} # Spawn a terminal in the current buffer's file directory

# __________ mappings __________

## buffer navigation
try %{ declare-user-mode buffer }
map global normal <esc> ': enter-user-mode buffer<ret>' \
  -docstring 'enter buffer user mode'

map global buffer h ': buffer-previous<ret>' \
  -docstring 'move to the previous buffer in the list'

map global buffer l ': buffer-next<ret>' \
  -docstring 'move to the next buffer in the list'

map global buffer q ': delete-buffer<ret>' \
  -docstring 'delete current buffer'

map global buffer Q ': delete-buffer!<ret>' \
  -docstring 'delete current buffer (force)'

map global goto b '<a-;>: pick-buffers<ret>' \
  -docstring 'buffer'

## git operations
try %{ declare-user-mode git }
map global user g ': enter-user-mode git<ret>' \
  -docstring 'enter git user mode'

map global git l ': git log<ret>' \
  -docstring 'log'

map global git c ': git commit<ret>' \
  -docstring 'commit'

map global git d ': git diff<ret>' \
  -docstring 'diff'

map global git s ': git status<ret>' \
  -docstring 'status'

map global git h ': git show-diff<ret>' \
  -docstring 'show diff'

map global git H ': git-hide-diff<ret>' \
  -docstring 'hide diff'

## open selection operations
try %{ declare-user-mode open-sel }
map global user o ': enter-user-mode open-sel<ret>' \
  -docstring 'enter open-sel user mode'

map global open-sel b '$ $BROWSER $kak_reg_dot & disown<ret>' \
  -docstring "on %sh{echo $BROWSER}"

map global open-sel i '$ imv $kak_reg_dot & disown<ret>' \
  -docstring 'on imv'

map global open-sel s '$ sioyek $kak_reg_dot & disown<ret>' \
  -docstring 'on sioyek'

map global open-sel m '$ mpv $kak_reg_dot & disown<ret>' \
  -docstring 'on mpv'

## surrounding operations
map global object <ret> 'c\n,\n<ret>'\
  -docstring 'newlines'
map global object <space> 'c<space>,<space><ret>'\
  -docstring 'spaces'

### operations relative to current file's directory
map global user <ret> ': spawn-terminal-here<ret>' \
  -docstring "open a new terminal within the current file's directory"

map global user e ": edit-from-here<ret>" \
  -docstring "edit a file, searching from current file's directory"

### comments
map global user c ': comment-line<ret>' \
  -docstring 'comment-line'

map global user C ': comment-block<ret>' \
  -docstring 'comment-block'

map global user d ': lf-open<ret>' \
  -docstring 'pick a file with lf'

### entering user modes
map global user s ': enter-user-mode surround<ret>' \
  -docstring 'enter surround user mode'

map global user l ': enter-user-mode lsp<ret>' \
  -docstring 'enter lsp user mode'

### remind
map global user r ': remind<ret>' \
  -docstring 'edit reminders'

# __________ hooks __________
hook -group config global BufCreate 'kakrc' %{
  set-option buffer filetype kak
} # set kakrc's filetype to kak

hook global BufCreate '\*scratch\*' %{
  execute-keys '%<a-d>'
  add-highlighter buffer/ wrap -indent -word -marker '↩'
  add-highlighter buffer/ show-whitespaces -indent '' -tab '→'
} # remove the *scratch* message, and set highlighters

hook global BufCreate .* %{
  add-highlighter buffer/ number-lines -relative -hlcursor
} # set relative line numbers and visual line break

hook global BufWritePost ".*/.config/kak/kakrc" %{
  source "%val{buffile}"
} # source kakrc on save

hook global BufWritePost "%val{config}/colorscheme.kak" %{
  source "%val{config}/colorscheme.kak"
  evaluate-commands palette-gutter
} # automatically source colorscheme.kak on save

hook global BufOpenFile "%val{config}/colorscheme.kak" %{
  evaluate-commands palette-gutter
} # display faces in the colorscheme file

hook global BufOpenFile .* %{
  add-highlighter buffer/ wrap -word -marker '↩'
  add-highlighter buffer/ show-whitespaces -indent '' -tab '→'
} # set highlighters for file buffers

hook global BufOpenFile .*\.typ %{
  set-option buffer filetype typst
}

hook global InsertCompletionShow .* %{
  map window insert <tab> <c-n>
  map window insert <s-tab> <c-p>
}
hook global InsertCompletionHide .* %{
  map window insert <tab> <c-n>
  map window insert <s-tab> <c-p>
} # use tab for completion movement

try %{ declare-option str line_comment_token '' }
hook -group config global BufSetOption filetype=kak %{
  set-option buffer indentwidth 2
  set-option buffer line_comment_token '#'
} # Kakscript comment tokens

hook -group config global BufSetOption filetype=scheme %{
  set-option buffer indentwidth 2
  set-option buffer line_comment_t ';;'
  set-option buffer block_comment_tokens '#|' '|#'
} # Scheme comment tokens

hook -group config global BufSetOption filetype=(c|cpp) %{
  set-option window formatcmd 'clazy'
  set-option buffer line_comment_token '//'
  set-option buffer block_comment_tokens '/*' '*/'
} # C and C++ comment tokens

hook -group config global BufSetOption filetype=(sh|dash) %{
  set-option window formatcmd 'shfmt'
  set-option window lintcmd 'shellharden'
  set-option buffer line_comment_token '#'
  set-option buffer block_comment_tokens "<<'####'" '###'
} # Shell comment tokens

hook -group config global BufSetOption filetype=zig %{
  set-option buffer line_comment_token '//'
} # Zig comment tokens

hook global WinSetOption filetype=kak %{
  hook global NormalIdle .* %{
    evaluate-commands -save-regs 'a' %{
      try %{
        execute-keys -draft <a-i>w"ay
        evaluate-commands %sh{ (
          color="${kak_reg_a}"
          inverted_color=$(echo "${color}" | perl -pe 'tr/0123456789abcdefABCDEF/fedcba9876543210543210/')
          printf "%s\n" "evaluate-commands -client $kak_client %{ try %{
                     echo -markup %{{rgb:${inverted_color},rgb:${color}+b} #${color} }
                   }}" | kak -p $kak_session
          ) >/dev/null 2>&1 </dev/null &
        }
      }
    }
  }
}

# __________ plugins __________
source "%val{config}/plugins/plug.kak/rc/plug.kak"
plug "andreyorst/plug.kak" noload # manually installed plugin manager

# configure this
plug "occivink/kakoune-phantom-selection" #  work on multiple selections, one at a time

plug "maximbaz/surround.kak" # easily surround selections with parentesis or quotes

plug "https://gitlab.com/Screwtapello/kakoune-texinfo" # read info pages inside kakoune

plug "https://gitlab.com/Screwtapello/kakoune-state-save" config %{
  hook global KakBegin .* %{
    evaluate-commands 'state-save-reg-load colon'
    evaluate-commands 'state-save-reg-load pipe'
    evaluate-commands 'state-save-reg-load slash'
  }

  hook global KakEnd .* %{
    evaluate-commands 'state-save-reg-save colon'
    evaluate-commands 'state-save-reg-save pipe'
    evaluate-commands 'state-save-reg-save slash'
  }
} # save and restore state between sessions

# plug "https://codeberg.org/anemofilia/relapath.kak" demand relapath %{
#   alias global cd relapath-change-directory
#   alias global e relapath-edit
#   alias global e! relapath-edit-bang
# 
#   alias global change-directory relapath-change-directory
#   alias global edit relapath-edit
#   alias global edit! relapath-edit-bang
#   alias global rename-buffer relapath-rename-buffer
# 
#   relapath-modelinefmt-replace global
# } # no dereference symlinks

plug 'delapouite/kakoune-buffers' # ease navigation between opened buffers.

plug "https://gitlab.com/Screwtapello/kakoune-texinfo.git" # texinfo

plug "jpcornwell/kakoune-sokoban" # sokoban because yes

plug "lePerdu/kakboard" config %{
  hook global WinCreate .* %{ kakboard-enable }
} # sync clipboards

plug "JJK96/kakoune-rainbow"
set-option global rainbow_opening "[[(]"
declare-option str-list rainbow_faces "rgb:a790d3" "rgb:6cdae0" "rgb:ff7f50" \
                                      "rgb:ffea8c" "rgb:83dcaf" "rgb:eba4d4" \
                                      "rgb:8b5be7"
# add coloring to matching parenthesis

plug "alexherbo2/auto-pairs.kak" config %{
  set-option global auto_pairs ( ) { } [ ] '"' '"' "'" "'" ` `
  hook -group config global BufSetOption filetype=latex %{
    set-option buffer auto_pairs ( ) [ ] { } '"' '"' $ $
  }
  hook -group config global BufSetOption filetype=scheme %{
    set-option buffer auto_pairs ( ) [ ] { } '"' '"'
  }
  hook -group config global BufSetOption filetype=typst %{
    set-option buffer auto_pairs ( ) [ ] { } '"' '"' $ $ * *
  }
  evaluate-commands enable-auto-pairs
}  # auto-pairing of characters

plug "Delapouite/kakoune-palette" config %{
  hook global BufOpenFile .*colorscheme.kak %{
    evaluate-commands palette-gutter
  }
} # preview face colors in kakoune

# __________ lsp __________
eval %sh{kak-lsp --kakoune -s $kak_session}
hook global BufSetOption filetype=(c|cpp|css|haskell|html|json|scheme|sh|latex|zig) %{
  add-highlighter buffer/ column 80 StatusLine
  hook global BufSetOption filetype=scheme %{
    set-option buffer lsp_cmd 'guile-lsp-server'
  }
  lsp-enable-window
}

# latex
set-option -add global lsp_server_configuration texlab.build.onSave=true
set-option -add global lsp_server_configuration texlab.build.forwardSearchAfter=true
set-option -add global lsp_server_configuration texlab.build.args=["-pdf","-new-viewer-","-pdflatex\=pdflatex","-silent","-shell-escape","%f"]