#!/usr/bin/env nix-shell
#!nix-shell -i bash -p curl jq sta

# https://help.github.com/en/github/authenticating-to-github/creating-a-personal-access-token-for-the-command-line
TOKEN=
set -o pipefail

manual() {
	xdg-open "$(echo "$object" | jq -r '.url')"
	echo -n "Enter username: " >&2
	read username
	resp=$(curl -sS -H "Authorization: token $TOKEN" "https://api.github.com/users/$username")
	id=$(echo "$resp" | jq -r '.id')
	echo "For handle $handle, 'github' should be $username, 'githubId' should be $id :"
	echo "    githubId = $id;"
}

#git -C ~/src/nixpkgs log --follow --patch maintainers/maintainer-list.nix \
#  | rg -e '^index ([0-9a-f]+)\.\.([0-9a-f]+)|^commit ([0-9a-f]+)' -or '$1-$2-$3' \
#	| while IFS="-" read before after commit; do
#	  if [ -n "$commit" ]; then
#		  currentcommit="$commit"
#			echo "$currentcommit" >&2
#		else
#			echo "builtins.attrNames (let x = $(git -C ~/src/nixpkgs show "$before"); in if builtins.isFunction x then x {} else x)" > beforefile
#			echo "builtins.attrNames (let x = $(git -C ~/src/nixpkgs show "$after"); in if builtins.isFunction x then x {} else x)" > afterfile
#		  if ! keysbefore=$(nix-instantiate beforefile --eval --json --strict | jq '.[]' -r); then
#			  continue
#			fi
#		  if ! keysafter=$(nix-instantiate afterfile --eval --json --strict | jq '.[]' -r); then
#			  continue
#			fi
#			diff \
#				--new-line-format="%L" \
#				--old-line-format="" \
#				--unchanged-line-format="" \
#				<(echo "$keysbefore") <(echo "$keysafter") | while read user; do
#				echo "Handle $user was added in $currentcommit" >&2
#				echo "$user $currentcommit"
#			done
#
#		fi
#	done
#
#exit 0

#response=$(curl -sS -H "Authorization: token $TOKEN" https://api.github.com/users/$1)
#
#echo "    githubId = $(echo "$response" | jq -r '.id');" | tee /dev/stderr |  /nix/store/5ghdbn3lmbaqdj7dba0a5m1hb2949zwy-xclip-0.13/bin/xclip -selection clipboard
#exit 0
forHandle() {
  local handle=$1
  local github=$2
	echo -n "For handle $handle the previous github login was $github. " >&2
	commit=$(rg "^$handle (.*)$" -or '$1' maintainer-map | tail -1)
	#commit=$(git -C ~/src/nixpkgs log --follow -G "$\s*$handle[^a-zA-Z0-9_'-]^" --pretty=format:%H maintainers/maintainer-list.nix | tail -1)
	echo -n "Found commit $commit . " >&2

	query=$(cat <<-EOF
{
  repository(name: "nixpkgs", owner: "NixOS") {
    object(expression: "$commit") {
      ... on Commit {
        associatedPullRequests(first: 10) {
          nodes {
            author {
              ... on User {
                databaseId
                login
              }
            }
          }
        }
        author {
          user {
            databaseId
            login
          }
        }
				url
      }
    }
  }
}
	EOF
	)
	DATA=$(jq -n --arg query "$query" '{ query : $query }')
	response=$(curl -sS -H "Authorization: token $TOKEN" -d "$DATA" https://api.github.com/graphql)
	object=$(echo "$response" | jq '.data.repository.object')
  result=$(echo "$object" | jq '[ ( .author.user , .associatedPullRequests.nodes[].author) ] | map(select(. != null)) | unique[] | "\(.login) \(.databaseId)"' -r)
	if [ -z "$result" ]; then
	  count=0
	else
		count=$(echo "$result" | wc -l)
	fi
	if [ "$count" -eq 0 ]; then
		echo -e "\e[31mCouldn't figure out who the author is!\e[0m" >&2
		manual
	elif [ "$count" -eq 1 ]; then
		read login id <<< "$result"
		echo -n "Found author with login $login and id $id. " >&2
		if [ "$github" = "$login" ]; then
		  echo -e "\e[32mThis is the same as the one in the maintainer file\e[0m" >&2
			echo "For handle $handle, 'github' should be $login, 'githubId' should be $id :"
			echo "    githubId = $id;"
		else
		  echo -e "\e[31mThis is NOT the same as the one in the maintainer file!\e[0m" >&2
			manual
		fi
	else
		echo -e "\e[31mDifferent commit author than PR author!\e[0m" >&2
		manual
	fi
}

#forHandle DerGuteMoritz DerGuteMoritz
#forHandle Fresheyeball fresheyeball
#forHandle MP2E MP2E
#forHandle Mogria mogria
#forHandle MtP MtP76
#forHandle abbradar abbradar
#forHandle acairncross acairncross
#forHandle adamt adamtulinius
#forHandle aforemny aforemny
#forHandle ak alexanderkjeldaas
#forHandle alunduil alunduil
#forHandle ambrop72 ambrop72
#forHandle aminb aminb
#forHandle andreabedini andreabedini
#forHandle andres kosmikus
#forHandle andsild andsild
#forHandle antono antono
#forHandle auntie auntie
#forHandle averelld averelld
#forHandle backuitist backuitist
#forHandle badi badi
#forHandle berdario berdario
#forHandle bluescreen303 bluescreen303
#forHandle boothead boothead
#forHandle coconnor coreyoconnor
#forHandle cransom cransom
#forHandle davidrusu davidrusu
#forHandle desiderius desiderius
#forHandle dgonyeo dgonyeo
#forHandle doublec doublec
#forHandle dxf dingxiangfei2009
#forHandle edanaher edanaher
#forHandle emmanuelrosa emmanuelrosa
#forHandle ericsagnes ericsagnes
#forHandle ertes ertes
#forHandle fare fare
#forHandle fdns fdns
#forHandle fragamus fragamus
#forHandle freezeboy freezeboy
#forHandle garbas garbas
#forHandle gavin gavinrogers
#forHandle gridaphobe gridaphobe
#forHandle hkjn hkjn
#forHandle infinisil infinisil
#forHandle j03 johannesloetzsch
#forHandle jasoncarr jasoncarr0
#forHandle jeschli jeschli
#forHandle jfb tftio
#forHandle jitwit jitwit
#forHandle joamaki joamaki
#forHandle joepie91 joepie91
#forHandle jonathanmarler marler8997
#forHandle juliendehos juliendehos
#forHandle jyp jyp
#forHandle kampfschlaefer kampfschlaefer
#forHandle knairda KnairdA
#forHandle koral k0ral
#forHandle laikq laikq
#forHandle lassulus Lassulus
#forHandle lebastr lebastr
#forHandle leonardoce leonardoce
#forHandle lovek323 lovek323
#forHandle ltavard ltavard
#forHandle lumi lumi-me-not
#forHandle matthewbauer matthewbauer
#forHandle matti-kariluoma matti-kariluoma
#forHandle melsigl melsigl
#forHandle michaelpj michaelpj
#forHandle michelk michelk
#forHandle minijackson minijackson
#forHandle mirdhyn mirdhyn
#forHandle mkf mkf
#forHandle mmlb mmlb
#forHandle mpscholten mpscholten
#forHandle mredaelli mredaelli
#forHandle nand0p nand0p
#forHandle ngerstle ngerstle
#forHandle olynch olynch
#forHandle orbitz orbitz
#forHandle pcarrier pcarrier
#forHandle plchldr plchldr
#forHandle pmeunier P-E-Meunier
#forHandle polyrod polyrod
forHandle rafaelgg rafaelgg
#forHandle rickynils rickynils
#forHandle rob rbvermaa
#forHandle robberer robberer
#forHandle rvolosatovs rvolosatovs
#forHandle ryansydnor ryansydnor
#forHandle sander svanderburg
#forHandle scalavision scalavision
#forHandle schmittlauch schmittlauch
#forHandle scubed2 scubed2
#forHandle shazow shazow
#forHandle shlevy shlevy
#forHandle shmish111 shmish111
#forHandle sjmackenzie sjmackenzie
#forHandle sprock sprock
#forHandle srghma srghma
#forHandle taha tgharib
#forHandle tckmn tckmn
#forHandle tesq0 tesq0
#forHandle teto teto
#forHandle the-kenny the-kenny
#forHandle timbertson timbertson
#forHandle timma ktrsoft
#forHandle tnias tnias
#forHandle tscholak tscholak
#forHandle tvestelind tvestelind
#forHandle tweber thorstenweber83
#forHandle twey twey
#forHandle uwap uwap
#forHandle valeriangalliat valeriangalliat
#forHandle vcanadi vcanadi
#forHandle viric viric
#forHandle vizanto vizanto
#forHandle vmchale vmchale
#forHandle wscott wscott
#forHandle xnaveira xnaveira
#forHandle y0no y0no
#forHandle zalakain umazalakain