# ANSI formatting function
omz_format() {
  [[ $# -gt 0 ]] || return
  printf "\033[%sm" "$*"
}

# Disable formatting if stdout is not a terminal
[[ -t 1 ]] || omz_format() { :; }

# Check for Zsh
if [[ -z "$ZSH_VERSION" ]]; then
  display_error() {
    printf "%sError:%s %s\n" "$(omz_format 1 31)" "$(omz_format 22)" "$1"
  }

  display_error "Oh My Zsh can't be loaded from: $SHELL. Run zsh instead."
  display_error "Process tree:"
  ps -o ppid,pid,command -p $$ 2>/dev/null || ps -o ppid,pid,comm | awk "NR == 1 || index(\"$$\", \$2) != 0"
  return 1
fi

# Check emulation mode
if [[ "$(emulate)" != zsh ]]; then
  printf "%sError:%s Oh My Zsh can't be loaded in \`%s\` emulation mode.\n" "$(omz_format 1 31)" "$(omz_format 22)" "$(emulate)"
  return 1
fi

# Set ZSH path if not defined
: ${ZSH:=${${(%):-%x}:a:h}}

# Set custom and cache directories
: ${ZSH_CUSTOM:=$ZSH/custom}
: ${ZSH_CACHE_DIR:=$ZSH/cache}

# Ensure cache directory is writable
if [[ ! -w "$ZSH_CACHE_DIR" ]]; then
  ZSH_CACHE_DIR="${XDG_CACHE_HOME:-$HOME/.cache}/oh-my-zsh"
fi

# Create cache and completions directories
mkdir -p "$ZSH_CACHE_DIR/completions"
fpath=("$ZSH_CACHE_DIR/completions" $fpath)

# Load necessary Zsh functions
autoload -U compaudit compinit zrecompile

# Plugin handling
is_plugin() {
  local base_dir=$1 name=$2
  [[ -f $base_dir/plugins/$name/$name.plugin.zsh ]] || [[ -f $base_dir/plugins/$name/_$name ]]
}

# Add plugins to fpath
for plugin in $plugins; do
  if is_plugin "$ZSH_CUSTOM" "$plugin"; then
    fpath=("$ZSH_CUSTOM/plugins/$plugin" $fpath)
  elif is_plugin "$ZSH" "$plugin"; then
    fpath=("$ZSH/plugins/$plugin" $fpath)
  else
    echo "[oh-my-zsh] plugin '$plugin' not found"
  fi
done

# Figure out the SHORT hostname
if [[ "$OSTYPE" = darwin* ]]; then
  # macOS's $HOST changes with dhcp, etc. Use ComputerName if possible.
  SHORT_HOST=$(scutil --get ComputerName 2>/dev/null) || SHORT_HOST="${HOST/.*/}"
else
  SHORT_HOST="${HOST/.*/}"
fi

# Save the location of the current completion dump file.
if [[ -z "$ZSH_COMPDUMP" ]]; then
  ZSH_COMPDUMP="${ZDOTDIR:-$HOME}/.zcompdump-${SHORT_HOST}-${ZSH_VERSION}"
fi

# Construct zcompdump OMZ metadata
zcompdump_revision="#omz revision: $(builtin cd -q "$ZSH"; git rev-parse HEAD 2>/dev/null)"
zcompdump_fpath="#omz fpath: $fpath"

# Delete the zcompdump file if OMZ zcompdump metadata changed
if ! command grep -q -Fx "$zcompdump_revision" "$ZSH_COMPDUMP" 2>/dev/null \
   || ! command grep -q -Fx "$zcompdump_fpath" "$ZSH_COMPDUMP" 2>/dev/null; then
  command rm -f "$ZSH_COMPDUMP"
  zcompdump_refresh=1
fi

if [[ "$ZSH_DISABLE_COMPFIX" != true ]]; then
  source "$ZSH/lib/compfix.zsh"
  # Load only from secure directories
  compinit -i -d "$ZSH_COMPDUMP"
  # If completion insecurities exist, warn the user
  handle_completion_insecurities &|
else
  # If the user wants it, load from all found directories
  compinit -u -d "$ZSH_COMPDUMP"
fi

# Append zcompdump metadata if missing
if (( $zcompdump_refresh )) \
  || ! command grep -q -Fx "$zcompdump_revision" "$ZSH_COMPDUMP" 2>/dev/null; then
  # Use `tee` in case the $ZSH_COMPDUMP filename is invalid, to silence the error
  # See https://github.com/ohmyzsh/ohmyzsh/commit/dd1a7269#commitcomment-39003489
  tee -a "$ZSH_COMPDUMP" &>/dev/null <<EOF

$zcompdump_revision
$zcompdump_fpath
EOF
fi
unset zcompdump_revision zcompdump_fpath zcompdump_refresh

# zcompile the completion dump file if the .zwc is older or missing.
if command mkdir "${ZSH_COMPDUMP}.lock" 2>/dev/null; then
  zrecompile -q -p "$ZSH_COMPDUMP"
  command rm -rf "$ZSH_COMPDUMP.zwc.old" "${ZSH_COMPDUMP}.lock"
fi

_omz_source() {
  local context filepath="$1"

  # Construct zstyle context based on path
  case "$filepath" in
  lib/*) context="lib:${filepath:t:r}" ;;         # :t = lib_name.zsh, :r = lib_name
  plugins/*) context="plugins:${filepath:h:t}" ;; # :h = plugins/plugin_name, :t = plugin_name
  esac

  local disable_aliases=0
  zstyle -T ":omz:${context}" aliases || disable_aliases=1

  # Back up alias names prior to sourcing
  local -A aliases_pre galiases_pre
  if (( disable_aliases )); then
    aliases_pre=("${(@kv)aliases}")
    galiases_pre=("${(@kv)galiases}")
  fi

  # Source file from $ZSH_CUSTOM if it exists, otherwise from $ZSH
  if [[ -f "$ZSH_CUSTOM/$filepath" ]]; then
    source "$ZSH_CUSTOM/$filepath"
  elif [[ -f "$ZSH/$filepath" ]]; then
    source "$ZSH/$filepath"
  fi

  # Unset all aliases that don't appear in the backed up list of aliases
  if (( disable_aliases )); then
    if (( #aliases_pre )); then
      aliases=("${(@kv)aliases_pre}")
    else
      (( #aliases )) && unalias "${(@k)aliases}"
    fi
    if (( #galiases_pre )); then
      galiases=("${(@kv)galiases_pre}")
    else
      (( #galiases )) && unalias "${(@k)galiases}"
    fi
  fi
}

# Load all of the lib files in ~/oh-my-zsh/lib that end in .zsh
# TIP: Add files you don't want in git to .gitignore
for lib_file ("$ZSH"/lib/*.zsh); do
  _omz_source "lib/${lib_file:t}"
done
unset lib_file

# Load all of the plugins that were defined in ~/.zshrc
for plugin ($plugins); do
  _omz_source "plugins/$plugin/$plugin.plugin.zsh"
done
unset plugin

# Load all of your custom configurations from custom/
for config_file ("$ZSH_CUSTOM"/*.zsh(N)); do
  source "$config_file"
done
unset config_file

# Load the theme
is_theme() {
  local base_dir=$1
  local name=$2
  builtin test -f $base_dir/$name.zsh-theme
}

if [[ -n "$ZSH_THEME" ]]; then
  if is_theme "$ZSH_CUSTOM" "$ZSH_THEME"; then
    source "$ZSH_CUSTOM/$ZSH_THEME.zsh-theme"
  elif is_theme "$ZSH_CUSTOM/themes" "$ZSH_THEME"; then
    source "$ZSH_CUSTOM/themes/$ZSH_THEME.zsh-theme"
  elif is_theme "$ZSH/themes" "$ZSH_THEME"; then
    source "$ZSH/themes/$ZSH_THEME.zsh-theme"
  else
    echo "[oh-my-zsh] theme '$ZSH_THEME' not found"
  fi
fi

# set completion colors to be the same as `ls`, after theme has been loaded
[[ -z "$LS_COLORS" ]] || zstyle ':completion:*' list-colors "${(s.:.)LS_COLORS}"