#!/bin/env fish
begin
    set -l dir (status dirname)
    set -l user jellyfin
    set -l domain media
    set -l server "$domain" ""
    set -l servarr radarr sonarr lidarr prowlarr
    set -l flood flood
    set -l service $user
    source "$dir/../service.fish"

    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 port (getRandomPort)
        set -l servarrKeys
        initializeServiceInstallation $argv
        sudo cp "$dir/docker-compose.base.yml" "$root"
        sudo cp "$dir/.dockerignore" "$root"
        sudo cp "$dir/pvpn-cli.py" "$root"
        sudo cp "$dir/rtorrent.Dockerfile" "$root"
        sudo cp "$source" "$overrides"

        installDockerService $argv
    end

    function configureSW -V dir -V user -V domain -V service -V servarr -V flood
        set -l uid
        set -l gid
        set -l port
        set -l file (mktemp)
        set -l root (getServiceRoot $argv)
        set -l config "$root/docker-compose.base.yml"
        set -l overrides (getServiceOverrides $argv)
        set -l envKey "$(getServiceKey "$service").environment"
        configureDockerService $argv

        and sudo useradd \
            --system \
            --shell /bin/false \
            --comment 'Jellyfin server' \
            --create-home \
            $user

        set uid (id -u $user)
        set gid (id -g $user)

        for name in $service $flood
            set -l userKey "$(getServiceKey "$name").user"
            cp "$config" "$file"
            USER=$uid:$gid yq "$userKey = env(USER)" "$file" | sudo tee "$config" >/dev/null
        end

        for name in $servarr rtorrent
            set -l envKey "$(getServiceKey "$name").environment"
            sudo cp "$config" "$file"

            and yq "$envKey.PUID = $uid" "$file" |
                yq "$envKey.PGID = $gid" |
                sudo tee "$config" >/dev/null
        end

        cp "$overrides" "$file"
        URL="https://$(getServiceDomain "$domain" "")/" yq "$(getServiceKey "$service").environment.JELLYFIN_PublishedServerUrl = env(URL)" "$file" |
            sudo tee "$overrides" >/dev/null

        for dir in "$root"/data/{downloads,config/{,jellyfin,flood,radarr,sonarr,lidarr,prowlarr},media/{,movies,series,music}}
            sudo mkdir -p "$dir"
            and sudo chown -R $uid:$gid "$dir"
        end

        rm "$file"
    end

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

    function getServiceLocations -V servarr -V flood
        argparse -i "name=" -- $argv
        printf "%s\0" \
            "$_flag_name" / "" (
                for app in $servarr
                    printf "%s\n" "$app" "/$app" ""
                    printf "%s\n" "$app" "/$app/signalr" ""
                end) \
            flood "/flood/"
    end

    function getServiceLocationConfig -a domain s location -V service -V flood
        if [ "$s" = "$service" ]
            set -l argv $argv[4..]

            printf "%s\n" \
                "location = / {" \
                    'return 302 $scheme://$host/web/;' \
                "}"

            getServiceDefaultProxy $domain $s "$location" --comment "Proxy main Jellyfin traffic" $argv
            getServiceDefaultProxy $domain $s "= /web/" --path "/web/index.html" --comment "Proxy main Jellyfin traffic" $argv
            getServiceDefaultProxy $domain $s /socket --comment "Proxy Jellyfin Websockets traffic" $argv
        else if [ "$s" = "$flood" ]
            getServiceDefaultProxy $argv

            printf "%s\n" \
                "location = /flood {" \
                    'return 302 $scheme://$host$uri/$is_args$args;' \
                "}"
        else
            getServiceDefaultProxy $argv
        end
    end

    function getExtraLocationSettings -a domain s location -V service -V servarr
        set -l wsConfig (
            printf "%s\n" \
                '# Websocket' \
                "proxy_http_version 1.1;" \
                'proxy_set_header Upgrade $http_upgrade;' \
                'proxy_set_header Connection "upgrade";')

        if [ "$s" = "$service" ]
            if [ "$location" = / ]
                printf "%s\n" \
                    "# Disable buffering when the nginx proxy gets very resource heavy upon streaming" \
                    "proxy_buffering off;"
            else if [ "$location" = /socket ]
                echo "$wsConfig"
            end
        else if contains "$s" $servarr
            if string match --regex ".*/signalr^" "$location" >/dev/null
                echo "$wsConfig"
            end
        end
    end

    function getExtraBackupPatterns
        echo "^proton\.env\$"
    end

    runInstaller --force $argv
end