#!/usr/bin/env bash

# Code modified from https://github.com/kamranahmedse/git-standup,
# under the MIT LICENSE.
if [[ $# -gt 3 ]] ; then
  >&2 printf "Usage: $0 [fullname] [since] [until]\nExample: $0 \"John Doe\" \"last Mon\" yesterday\n"
  exit 1
fi

git rev-parse --show-toplevel > /dev/null 2>&1
in_git_repo=$?

# Use colors, but only if connected to a terminal, and that terminal
# supports them.
if which tput >/dev/null 2>&1; then
  ncolors=$(tput colors)
fi
if [[ -t 1 ]] && [[ -n "$ncolors" ]] && [[ "$ncolors" -ge 8 ]] ; then
  RED="$(tput setaf 1)"
  GREEN="$(tput setaf 2)"
  YELLOW="$(tput setaf 3)"
  BLUE="$(tput setaf 4)"
  BOLD="$(tput bold)"
  NORMAL="$(tput sgr0)"
  BOLD=$(tput bold)
  UNDERLINE=$(tput smul)
  NORMAL=$(tput sgr0)
else
  RED=""
  GREEN=""
  YELLOW=""
  BLUE=""
  BOLD=""
  NORMAL=""
  BOLD=""
  UNDERLINE=""
  NORMAL=""
fi

# Only enable exit-on-error after the non-critical colorization stuff,
# which may fail on systems lacking tput or terminfo
set -e

AUTHOR=${1:-"$(git config user.name)"}
SINCE=${2:-yesterday}
UNTIL=${3:-today}


## In case it is the start of week, we need to
## show the commits since the last weekend
shopt -s nocasematch

GIT_LOG_COMMAND="git --no-pager log \
    --all
    --no-merges
    --since \"$SINCE\"
    --until \"$UNTIL\"
    --author=\"$AUTHOR\"
    --abbrev-commit
    --oneline
    --pretty=format:'%Cred%h%Creset - %s %Cgreen(%cr) %C(bold blue)<%an>%Creset'"

## For when the command has been run in a non-repo directory
if [[ $in_git_repo != 0 ]]; then

    ## Iterate through all the top level directories inside
    ## and look for any git repositories.
    for DIR in */ ; do

        cd "$DIR"

        ## Show the detail only if it is a git repository
        if [[ -d ".git" ]] ; then
            if GITOUT=$(eval ${GIT_LOG_COMMAND}); then
                ## Only output if there is some activity
                if [[ ! -z "$GITOUT" ]] ;  then
                    echo "${BOLD}${UNDERLINE}${YELLOW}$DIR${NORMAL}"
                    echo "$GITOUT"
                fi
            else
                echo "Repository under $DIR could not be queried. Missing initial commit?" >&2
            fi
        fi

        cd ..
    done
else
    eval ${GIT_LOG_COMMAND}
    echo "" ## To avoid that ugly # icon representing the end of line
fi