#!/bin/env fish
begin
    set -l dir (status dirname)
    set -l user git
    set -l domain git
    set -l server "$domain" ""
    set -l service "forgejo"
    source "$dir/../service.fish"

    function getSSHPortKey -V service
        echo "$(getServiceKey "$service").ports[1]"
    end

    function installSW -V dir -V domain -V server -V service
        set -l root (getServiceRoot $argv)
        set -l overrides (getServiceOverrides $argv)
        set -l source "$dir/$(basename "$overrides")"
        set -l pw (nix-shell -p keepassxc --run "keepassxc-cli generate --length 32")
        set -l port (getRandomPort)
        initializeServiceInstallation $argv
        sudo cp "$dir/docker-compose.base.yml" "$root"

        set port (yq (getSSHPortKey) "$source" | mutatePort "$port")

        DOMAIN=(getServiceDomain $server) PW=$pw DB=Git USER=forgejo PW=$pw begin
            set -l gitEnv "$(getServiceKey "$service").environment"
            set -l actEnv "$(getServiceKey "runner").environment"
            set -l dbEnv "$(getServiceKey "db").environment"

            PORT=$port yq "$(getSSHPortKey) = env(PORT)" "$source" |
                yq "$gitEnv.FORGEJO__server__DOMAIN = env(DOMAIN)" |
                yq "$gitEnv.FORGEJO__database__NAME = env(DB)" |
                yq "$gitEnv.FORGEJO__database__USER = env(USER)" |
                yq "$gitEnv.FORGEJO__database__PASSWD = env(PW)" |
                yq "$dbEnv.MARIADB_DATABASE = env(DB)" |
                yq "$dbEnv.MARIADB_USER = env(USER)" |
                yq "$dbEnv.MARIADB_PASSWORD = env(PW)" |
                URL="https://$DOMAIN/" yq "$actEnv.GITEA_INSTANCE_URL = env(URL)" |
                sudo tee "$overrides" >/dev/null
        end

        installDockerService $argv
    end

    function configureSW -V dir -V user -V service
        set -l uid
        set -l gid
        set -l port
        set -l file (mktemp)
        set -l root (getServiceRoot $argv)
        set -l home /srv/git
        set -l sshDir "$home/.ssh"
        set -l keyFile "$sshDir/id_rsa"
        set -l dir "$root/data"
        set -l bin /usr/local/bin/forgejo
        set -l config "$root/docker-compose.base.yml"
        set -l overrides (getServiceOverrides $argv)
        set -l envKey "$(getServiceKey "$service").environment"
        configureDockerService $argv
        cp "$config" "$file"

        and sudo useradd \
            --system \
            --shell /bin/bash \
            --comment 'Git Version Control' \
            $user

        set uid (id -u $user)
        set gid (id -g $user)
        and sudo usermod -d "$home" "$user"

        and yq "$envKey.USER_UID = $uid" "$file" |
            yq "$envKey.USER_GID = $gid" |
            sudo tee "$config" >/dev/null

        rm "$file"

        and sudo mkdir -p "$dir"
        and sudo mkdir -p "$home"
        and sudo chown -R $uid:$gid "$dir"
        and sudo chown -R $uid:$gid "$home"
        and sudo -u "#$uid" mkdir -p "$sshDir"
        and sudo -u "#$uid" ssh-keygen -t rsa -b 4096 -C "Forgejo Host Key" -f "$keyFile" -N ""
        and sudo -u "#$uid" cat "$keyFile.pub" | sudo -u "#$uid" tee -a "$sshDir/authorized_keys"
        and sudo chmod 600 "$sshDir/authorized_keys"

        set port (yq (getSSHPortKey) "$overrides" | extractPort)

        begin
            printf "%s\n" \
                "#!/bin/sh" \
                "ssh -p $port -o StrictHostKeyChecking=no git@127.0.0.1 \"SSH_ORIGINAL_COMMAND=\\\"\$SSH_ORIGINAL_COMMAND\\\" \$0 \$@\""
        end | sudo tee "$bin" >/dev/null

        sudo chmod +x "$bin"
        sudo ln -s "$bin" "$(dirname "$bin")/gitea"
    end

    function getServiceServers -V server
        printf "%s\0" $server
    end

    function getServiceLocations
        argparse -i "name=" -- $argv
        printf "%s\0" "$_flag_name" /
    end

    runInstaller --force $argv
end