#!/bin/bash
set -eo pipefail

declare -A php_version=(
	[default]='7.3'
)

declare -A cmd=(
	[apache]='apache2-foreground'
	[fpm]='php-fpm'
	[fpm-alpine]='php-fpm'
)

declare -A base=(
	[apache]='debian'
	[fpm]='debian'
	[fpm-alpine]='alpine'
)

declare -A extras=(
	[apache]='\nRUN set -ex;\\\n    a2enmod rewrite remoteip ;\\\n    {\\\n     echo RemoteIPHeader X-Real-IP ;\\\n     echo RemoteIPTrustedProxy 10.0.0.0/8 ;\\\n     echo RemoteIPTrustedProxy 172.16.0.0/12 ;\\\n     echo RemoteIPTrustedProxy 192.168.0.0/16 ;\\\n    } > /etc/apache2/conf-available/remoteip.conf;\\\n    a2enconf remoteip'
	[fpm]=''
	[fpm-alpine]=''
)

declare -A entrypoints=(
  [stable]='entrypoint.sh'
  [develop]='entrypoint-dev.sh'
)

apcu_version="$(
	git ls-remote --tags https://github.com/krakjoe/apcu.git \
		| cut -d/ -f3 \
		| grep -vE -- '-rc|-b' \
		| sed -E 's/^v//' \
		| sort -V \
		| tail -1
)"

memcached_version="$(
	git ls-remote --tags https://github.com/php-memcached-dev/php-memcached.git \
		| cut -d/ -f3 \
		| grep -vE -- '-rc|-b' \
		| sed -E 's/^[rv]//' \
		| sort -V \
		| tail -1
)"

redis_version="$(
	git ls-remote --tags https://github.com/phpredis/phpredis.git \
		| cut -d/ -f3 \
		| grep -viE '[a-z]' \
		| tr -d '^{}' \
		| sort -V \
		| tail -1
)"

imagick_version="$(
	git ls-remote --tags https://github.com/mkoppanen/imagick.git \
		| cut -d/ -f3 \
		| grep -viE '[a-z]' \
		| tr -d '^{}' \
		| sort -V \
		| tail -1
)"

declare -A pecl_versions=(
	[APCu]="$apcu_version"
	[memcached]="$memcached_version"
	[redis]="$redis_version"
	[imagick]="$imagick_version"
)

declare -A install_extras=(
    ['stable']='\nRUN set -ex; \\\n    curl -fsSL -o friendica.tar.gz \\\n        "https://github.com/friendica/friendica/archive/${FRIENDICA_VERSION}.tar.gz"; \\\n    tar -xzf friendica.tar.gz -C /usr/src/; \\\n    rm friendica.tar.gz; \\\n    mv -f /usr/src/friendica-${FRIENDICA_VERSION}/ /usr/src/friendica; \\\n    chmod 777 /usr/src/friendica/view/smarty3; \\\n    curl -fsSL -o friendica_addons.tar.gz \\\n        "https://github.com/friendica/friendica-addons/archive/${FRIENDICA_ADDONS}.tar.gz"; \\\n    mkdir -p /usr/src/friendica/proxy; \\\n    mkdir -p /usr/src/friendica/addon; \\\n    tar -xzf friendica_addons.tar.gz -C /usr/src/friendica/addon --strip-components=1; \\\n    rm friendica_addons.tar.gz; \\\n    /usr/src/friendica/bin/composer.phar install --no-dev -d /usr/src/friendica;'
    ['develop']=''
)

variants=(
	apache
	fpm
	fpm-alpine
)

versions=(
    2019.12
    2020.03-dev
)

travisEnv=
travisEnvAmd64=

function create_variant() {
	dockerName=${1,,}
	dir="$dockerName/$variant"

	# Create the version+variant directory with a Dockerfile.
	mkdir -p "$dir"

        template="Dockerfile-${base[$variant]}.template"
        echo "# DO NOT EDIT: created by update.sh from $template" > "$dir/Dockerfile"
	cat "$template" >> "$dir/Dockerfile"

    # Check which installation typ we need. If develop, the source will get downloaded by git.
    install_type='stable'
    if [[ "${1,,}" == *-dev ]] || [[ "${1,,}" == *-rc ]]; then
      install_type='develop'
    fi

	echo "updating $1 [$install_type] $variant"

	# Replace the variables.
	sed -ri -e '
		s/%%PHP_VERSION%%/'"${php_version[$version]-${php_version[default]}}"'/g;
		s/%%VARIANT%%/'"$variant"'/g;
		s/%%VERSION%%/'"$1"'/g;
		s/%%CMD%%/'"${cmd[$variant]}"'/g;
		s|%%VARIANT_EXTRAS%%|'"${extras[$variant]}"'|g;
		s|%%INSTALL_EXTRAS%%|'"${install_extras[$install_type]}"'|g;
		s/%%APCU_VERSION%%/'"${pecl_versions[APCu]}"'/g;
		s/%%IMAGICK_VERSION%%/'"${pecl_versions[imagick]}"'/g;
		s/%%MEMCACHED_VERSION%%/'"${pecl_versions[memcached]}"'/g;
		s/%%REDIS_VERSION%%/'"${pecl_versions[redis]}"'/g;
		s/%%ENTRYPOINT%%/'"${entrypoints[$install_type]}"'/g;
	' "$dir/Dockerfile"

	for name in entrypoint cron; do
		cp "docker-$name.sh" "$dir/$name.sh"
	done

	if [[ $install_type == "develop" ]]; then
	  cp "docker-entrypoint-dev.sh" "$dir/entrypoint-dev.sh"
	fi

	cp upgrade.exclude "$dir/"

	cp -rT .config "$dir/config"

    travisEnvAmd64='\n    - env: VERSION='"$dockerName"' VARIANT='"$variant"' ARCH=amd64'"$travisEnvAmd64"
	for arch in i386 amd64; do
		travisEnv='\n    - env: VERSION='"$dockerName"' VARIANT='"$variant"' ARCH='"$arch$travisEnv"
	done
}

find . -maxdepth 1 -type d -regextype sed -regex '\./[[:digit:]]\+\(\.\|\-\)[[:digit:]]\+\(-rc\|-dev\)\?' -exec rm -r '{}' \;

for version in "${versions[@]}"; do

		for variant in "${variants[@]}"; do

			create_variant "$version"
		done
done

# replace the fist '-' with ' '
travisEnv="$(echo "$travisEnv" | sed '0,/-/{s/-/ /}')"
travisEnvAmd64="$(echo "$travisEnvAmd64" | sed '0,/-/{s/-/ /}')"

# update .travis.yml
travisAmd64="$(awk -v 'RS=\n\n' '$1 == "-" && $2 == "stage:" && $3 == "test" && $4 == "images" && $5 == "(amd64)" { $0 = "    - stage: test images (amd64)'"$travisEnvAmd64"'" } { printf "%s%s", $0, RS }' .travis.yml)"
echo "$travisAmd64" > .travis.yml

travisFull="$(awk -v 'RS=\n\n' '$1 == "-" && $2 == "stage:" && $3 == "test" && $4 == "images" && $5 == "(full)" { $0 = "    - stage: test images (full)'"$travisEnv"'" } { printf "%s%s", $0, RS }' .travis.yml)"

echo "$travisFull" > .travis.yml