#!/usr/bin/env zsh
#local return_code="%(?..%{$fg[red]%}%? ↵%{$reset_color%})"

setopt promptsubst

autoload -U add-zsh-hook

PROMPT_SUCCESS_COLOR=$FG[117]
PROMPT_FAILURE_COLOR=$FG[124]
PROMPT_VCS_INFO_COLOR=$FG[242]
PROMPT_PROMPT=$FG[077]
GIT_DIRTY_COLOR=$FG[133]
GIT_CLEAN_COLOR=$FG[118]
GIT_PROMPT_INFO=$FG[012]

PROMPT='╭─%{$PROMPT_SUCCESS_COLOR%}%~%{$reset_color%} %{$GIT_PROMPT_INFO%}$(rvm_prompt_info) $(git_time_since_commit)$(git_prompt_info)%{$GIT_DIRTY_COLOR%}$(git_prompt_status) %{$reset_color%}%{$PROMPT_PROMPT%}
╰─ᐅ%{$reset_color%} '

#RPS1="${return_code}"

ZSH_THEME_GIT_PROMPT_PREFIX="("
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$GIT_PROMPT_INFO%})"
ZSH_THEME_GIT_PROMPT_DIRTY=" %{$GIT_DIRTY_COLOR%}✘"
ZSH_THEME_GIT_PROMPT_CLEAN=" %{$GIT_CLEAN_COLOR%}✔"

ZSH_THEME_GIT_PROMPT_ADDED="%{$FG[082]%}✚%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_MODIFIED="%{$FG[166]%}✹%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DELETED="%{$FG[160]%}✖%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_RENAMED="%{$FG[220]%}➜%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_UNMERGED="%{$FG[082]%}═%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_UNTRACKED="%{$FG[190]%}✭%{$reset_color%}"
#
# Colors vary depending on time lapsed.
ZSH_THEME_GIT_TIME_SINCE_COMMIT_SHORT="%{$fg[green]%}"
ZSH_THEME_GIT_TIME_SHORT_COMMIT_MEDIUM="%{$fg[yellow]%}"
ZSH_THEME_GIT_TIME_SINCE_COMMIT_LONG="%{$fg[red]%}"
ZSH_THEME_GIT_TIME_SINCE_COMMIT_NEUTRAL="%{$fg[cyan]%}"
# Determine if we are using a gemset.
function rvm_gemset() {
    GEMSET=`rvm gemset list | grep '=>' | cut -b4-`
    if [[ -n $GEMSET ]]; then
        echo "%{$fg[yellow]%}$GEMSET%{$reset_color%}|"
    fi 

}


function minutes_since_last_commit {
    now=`date +%s`
    last_commit=`git log --pretty=format:'%at' -1`
    seconds_since_last_commit=$((now-last_commit))
    minutes_since_last_commit=$((seconds_since_last_commit/60))
    echo $minutes_since_last_commit
}
# Determine the time since last commit. If branch is clean,
# use a neutral color, otherwise colors will vary according to time.
function git_time_since_commit() {
    if git rev-parse --git-dir > /dev/null 2>&1; then
        # Only proceed if there is actually a commit.
        if [[ $(git log 2>&1 > /dev/null | grep -c "^fatal: bad default revision") == 0 ]]; then
            # Get the last commit.
            last_commit=`git log --pretty=format:'%at' -1 2> /dev/null`
            now=`date +%s`
            seconds_since_last_commit=$((now-last_commit))

            # Totals
            MINUTES=$((seconds_since_last_commit / 60))
            HOURS=$((seconds_since_last_commit/3600))
           
            # Sub-hours and sub-minutes
            DAYS=$((seconds_since_last_commit / 86400))
            SUB_HOURS=$((HOURS % 24))
            SUB_MINUTES=$((MINUTES % 60))
            
            if [[ -n $(git status -s 2> /dev/null) ]]; then
                if [ "$MINUTES" -gt 30 ]; then
                    COLOR="$ZSH_THEME_GIT_TIME_SINCE_COMMIT_LONG"
                elif [ "$MINUTES" -gt 10 ]; then
                    COLOR="$ZSH_THEME_GIT_TIME_SHORT_COMMIT_MEDIUM"
                else
                    COLOR="$ZSH_THEME_GIT_TIME_SINCE_COMMIT_SHORT"
                fi
            else
                COLOR="$ZSH_THEME_GIT_TIME_SINCE_COMMIT_NEUTRAL"
            fi

            if [ "$HOURS" -gt 24 ]; then
                echo "|$COLOR${DAYS}d${SUB_HOURS}h${SUB_MINUTES}m%{$reset_color%}|"
            elif [ "$MINUTES" -gt 60 ]; then
                echo "|$COLOR${HOURS}h${SUB_MINUTES}m%{$reset_color%}|"
            else
                echo "|$COLOR${MINUTES}m%{$reset_color%}|"
            fi
        fi
    fi
}