gen_report

#!/usr/bin/env bash

# Generate a report of all the commits I've made on a given day on all of the specified repositories.
# Usage: gen_report.sh <date>

# shellcheck disable=SC2207
repos=($(find ~/work/code -name .git -type d | sed 's/\/.git//'))
# My PC username is usually the same as what I sign my commits with
ME=$(whoami)

# If using macOS, use gdate instead of date
if [ "$(uname)" == "Darwin" ]; then
	shopt -s expand_aliases
	alias date="gdate"
fi

set -o errexit

# TODO: This function is horrible, not sure how to make it better though
function date_to_before_after {
	# Convert a date to that date at 00:00:00 and the next day at 00:00:00
	# if date is "week" or "last week", get the range of dates for that week instead
	set -o errexit
	local date=$*
	if [ "$date" == "week" ] || [ "$date" == "last week" ]; then
		parsedDate=$(date)
		# echo "parsedDate: $parsedDate" >&2
		if [ "$date" == "last week" ]; then
			parsedDate=$(date -d "$parsedDate - 7 days")
		fi
		# echo "parsedDate: $parsedDate" >&2
		# Get last monday if parsedDate is not a monday
		if [ "$(date -d "$parsedDate" +%u)" -ne 1 ]; then
			while [ "$(date -d "$parsedDate" +%u)" -ne 1 ]; do
				parsedDate=$(date -d "$parsedDate - 1 day")
			done
		fi
		before=$(date -d "$parsedDate" +%Y-%m-%dT00:00:00)
		after=$(date -d "$parsedDate + 6 days" +%Y-%m-%dT00:00:00) # +7 gives the next monday
		echo "$before $after"
		echo "Running in week mode between $(date -d "$before" +%m-%d) and $(date -d "$after" +%m-%d)" >&2
		return
	fi
	parsedDate=$(date -d "$date")
	before=$(date -d "$parsedDate" +%Y-%m-%dT00:00:00)
	after=$(date -d "$parsedDate + 1 day" +%Y-%m-%dT00:00:00)
	echo "$before $after"
}

date=$*
before_after=$(date_to_before_after "$date")
before=$(echo "$before_after" | cut -d ' ' -f 1)
after=$(echo "$before_after" | cut -d ' ' -f 2)

# Get all commits made by me on the given day, and highlight the commit message based on the commit type.
# This assumes that the commit message is of the form: <type>(<scope>): <message> as specified by conventionalcommits.org
# It also assumes that you have hl somewhere in your path
for repo in "${repos[@]}"; do
	cd "$repo"
	# Tested with git 2.39.2
	work=$(git --no-pager log --oneline --pretty=oneline --author="$ME" --decorate --color=always | head | hl cyan 'fix\(?.*?\)?: ' | hl green 'feat\(?.*?\)?: ' | hl blue 'chore\(?.*?\)?: ' | hl yellow 'docs\(?.*?\)?: ' | hl magenta 'test\(?.*?\)?: ' | hl magenta 'refactor\(?.*?\)?: ' | hl red 'revert\(?.*?\)?: ' | hl red "Merge branch" | hl red "Merge pull request" | hl red "Merge remote-tracking branch" | hl red "Merge branch" | hl red "Merge pull request" | hl red "Merge remote-tracking branch")
	if [ -n "$work" ]; then
		git remote -v
		echo "Repo: $(git remote -v | head -n 1 | awk '{print $2}' | sed 's/.*\///' | sed 's/\.git//')"
		echo -e "$work"
		echo # Blank line
		exit 0
	fi
done