#!/bin/env fish
begin
    set -l dir (status dirname)
    set -l turn turn
    set -l domain cloud ""
    set -l service web
    set -l office collabora
    set -l officeDomain office ""
    set -l server $service $domain

    set -l services \
        $server \
        $office $officeDomain

    source "$dir/../service.fish"

    function installSW -V dir -V domain -V service -V turn -V office -V officeDomain
        set -l genPW __generatePW

        function $genPW -a length
            if [ -z "$length" ]
                set length 32
            end

            nix-shell -p keepassxc --run "keepassxc-cli generate --length $length"
        end

        set -l file (mktemp)
        set -l root (getServiceRoot $argv)
        set -l source "$dir/docker-compose.core.yml"
        set -l core "$root/$(basename "$source")"
        set -l domain (getServiceDomain $domain)
        set -l overrides (getServiceOverrides $argv)
        set -l overridesSource "$dir/$(basename "$overrides")"
        set -l turnKey "$(getServiceKey "$turn")"
        set -l portKey "$turnKey.ports[1]"
        set -l officeEnv "$(getServiceKey "$office").environment"
        set -l dbPW ($genPW)
        set -l turnPW ($genPW)
        set -l turnPort
        set -l redisPW ($genPW)
        set -l nextcloudPW ($genPW 64)

        initializeServiceInstallation $argv
        sudo cp -r "$dir"/{cache.Dockerfile,cloud.Dockerfile,docker-compose.{base,core}.yml,.dockerignore,fpm,nginx,php.ini} "$root"

        begin
            printf "%s\n" \
                "MYSQL_DATABASE=Nextcloud" \
                "MYSQL_USER=nextcloud" \
                "MYSQL_PASSWORD=$dbPW"
        end | sudo tee "$root/db.env" >/dev/null

        echo "REDIS_HOST_PASSWORD=$redisPW" | sudo tee "$root/cache.env" >/dev/null

        begin
            printf "%s\n" \
                "NEXTCLOUD_ADMIN_USER=admin" \
                "NEXTCLOUD_ADMIN_PASSWORD=$nextcloudPW" \
                "NEXTCLOUD_TRUSTED_DOMAINS=$domain" \
                "OVERWRITEPROTOCOL=https" \
                "OVERWRITEHOST=$domain" \
                "OVERWRITECLIURL=https://$domain"
        end | sudo tee "$root/nextcloud.env" >/dev/null

        PROTO="https" DOMAIN="$domain" begin
            set -l key "$turnKey.command"

            PW="--static-auth-secret=$turnPW" \
                DOMAIN="--realm=$domain" \
                yq "$key |= . + [env(PW), env(DOMAIN)]" "$overridesSource" |
                DOMAIN=(getServiceDomain $officeDomain) yq "$officeEnv.server_name = env(DOMAIN)" |
                URL="https://$(string escape --style regex "$DOMAIN"):443" yq "$officeEnv.aliasgroup1 = env(URL)" |
                sudo tee "$overrides" >/dev/null
        end

        installDockerService $argv
        set turnPort (yq (getServicePortKey "$turn") "$overrides" | extractPort)
        set turnPort (yq "$portKey" "$overrides" | mutatePort "$turnPort")

        cp "$overrides" "$file"
        PORT="$turnPort" yq "$portKey = env(PORT)" "$file" | sudo tee "$overrides" >/dev/null
        rm "$file"
    end

    function configureSW -V dir
        configureDockerService $argv
    end

    function getServiceServers -V services
        for i in (seq 1 3 (count $services))
            printf "%s\0" $services[(math $i + 1)] $services[(math $i + 2)]
        end
    end

    function getServiceLocations -V services -V office -a index
        set -l i (math (math (math $index - 1) / 2 "*" 3) + 1)
        set -l name $services[$i]

        if [ "$name" != "$office" ]
            printf "%s\0" "$name" / ""
        else
            printf "%s\0" \
                "$name" "^~ /browser" "static files" \
                "$name" "^~ /hosting/discovery" "WOPI discovery URL" \
                "$name" "^~ /hosting/capabilities" Capabilities \
                "$name" "~ ^/cool/(.*)/ws\$" "main websocket" \
                "$name" "~ ^/(c|l)ool" "download, presentation and image upload" \
                "$name" "^~ /cool/adminws" "Admin Console websocket"
        end
    end

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

            if [ "$s" = "$service" ]
                printf "%s\n" \
                    "server_tokens off;" \
                    "" \
                    "client_max_body_size 512M;" \
                    "client_body_timeout 300s;" \
                    "fastcgi_buffers 64 4K;" \
                    "" \
                    "# enable gzip but do not remove ETag headers" \
                    "gzip on;" \
                    "gzip_vary on;" \
                    "gzip_comp_level 4;" \
                    "gzip_min_length 256;" \
                    "gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;" \
                    "gzip_types application/atom+xml text/javascript application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/wasm application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;" \
                    "" \
                    "# Pagespeed is not supported by Nextcloud, so if your server is built" \
                    "# with the `ngx_pagespeed` module, uncomment this line to disable it." \
                    "#pagespeed off;" \
                    "" \
                    "# The settings allows you to optimize the HTTP2 bandwidth." \
                    "# See https://blog.cloudflare.com/delivering-http-2-upload-speed-improvements/" \
                    "# for tuning hints" \
                    "client_body_buffer_size 512k;"
            end
        end
    end

    function getExtraLocationSettings -a domain s location -V service
        if string match --regex '^(~ \^|\^~ )/cool/(.*)ws\$?$' "$location" >/dev/null
            printf "%s\n" \
                '# Websocket' \
                "proxy_http_version 1.1;" \
                'proxy_set_header Upgrade $http_upgrade;' \
                'proxy_set_header Connection "upgrade";'
        end
    end

    function getExtraBackupPatterns
        echo "^(cache|db|nextcloud)\.env\$"
    end

    runInstaller --force $argv
end