<?php

namespace SimpleAnalytics;

use SimpleAnalytics\Settings\{Page, Tab};
use SimpleAnalytics\Actions\AddInactiveComment;
use SimpleAnalytics\Actions\AddNoScriptTag;
use SimpleAnalytics\Actions\AddPluginSettingsLink;
use SimpleAnalytics\Scripts\AnalyticsScript;
use SimpleAnalytics\Scripts\AutomatedEventsScript;
use SimpleAnalytics\Scripts\InactiveScript;

final class Plugin
{
    use PluginLifecycle;

    protected function onBoot(): void
    {
        if (is_admin()) {
            $this->defineAdminPage();
            AddPluginSettingsLink::register();
        }
    }

    public function onActivation(): void
    {
        $this->addOptions();
    }

    public function onUninstall(): void
    {
        $this->deleteOptions();
    }

    public function onInit(): void
    {
        $shouldCollect = (new TrackingPolicy)->shouldCollectAnalytics();
        $this->addScripts($shouldCollect);
        if (! $shouldCollect) {
            AddInactiveComment::register();
        }
        if ($shouldCollect && Setting::boolean(SettingName::NOSCRIPT)) {
            AddNoScriptTag::register();
        }
    }

    /**
     * Register plugin options and autoload them.
     *
     * @note Eliminates any unnecessary database lookups by preloading on each request.
     * @note Thanks to option autoloading, we don't need to use one serialized option, but several.
     *       This allows the usage of native hooks and filters and reduces the chance of data corruption.
     */
    protected function addOptions(): void
    {
        // Add options with default values
        add_option(SettingName::ENABLED, '1', null, true);

        // Add all remaining options
        $optionNames = array_diff(SettingName::cases(), [SettingName::ENABLED]);
        foreach ($optionNames as $name) {
            add_option($name, null, null, true);
        }

        // Legacy. Update the option introduced in a previous release to use autoloading.
        update_option(SettingName::CUSTOM_DOMAIN, get_option(SettingName::CUSTOM_DOMAIN), true);
    }

    protected function deleteOptions(): void
    {
        foreach (SettingName::cases() as $name) {
            delete_option($name);
        }
    }

    protected function addScripts(bool $collect): void
    {
        $scripts = new ScriptManager;

        if ($collect) {
            $scripts->add(new AnalyticsScript);
        } elseif (is_user_logged_in()) {
            $scripts->add(new InactiveScript);
        }

        if (Setting::boolean(SettingName::AUTOMATED_EVENTS)) {
            $scripts->add(new AutomatedEventsScript);
        }

        $scripts->register();
    }

    protected function defineAdminPage(): void
    {
        Page::title('Simple Analytics')
            ->slug('simpleanalytics')
            ->tab('General', function (Tab $tab) {
                $tab->input(SettingName::CUSTOM_DOMAIN, 'Custom Domain')
                    ->placeholder('Enter your custom domain or leave it empty.')
                    ->description('E.g. api.example.com. Leave empty to use the default domain (most users).')
                    ->docs('https://docs.simpleanalytics.com/bypass-ad-blockers');
            })
            ->tab('Ignore Rules', function (Tab $tab) {
                $tab->icon(get_icon('eye-slash'));

                $tab->input(SettingName::IGNORE_PAGES, 'Ignore Pages')
                    ->description('Comma separated list of pages to ignore. E.g. /contact, /about')
                    ->placeholder('Example: /page1, /page2, /category/*')
                    ->docs('https://docs.simpleanalytics.com/ignore-pages');

                $tab->callout('IP and role exclusion only works when there is no page caching.');

                $tab->multiCheckbox(SettingName::EXCLUDED_ROLES, 'Exclude User Roles')
                    ->options(function () {
                        return wp_roles()->get_names();
                    });

                $tab->ipList(SettingName::EXCLUDED_IP_ADDRESSES, 'Exclude IP Addresses')
                    ->placeholder("127.0.0.1\n192.168.0.1")
                    ->description('IP addresses to exclude from tracking.');
            })
            ->tab('Advanced', function (Tab $tab) {
                $tab->icon(get_icon('cog'));

                $tab->checkbox(SettingName::COLLECT_DNT, 'Collect Do Not Track')
                    ->description('If you want to collect visitors with Do Not Track enabled, turn this on.')
                    ->docs('https://docs.simpleanalytics.com/dnt');

                $tab->checkbox(SettingName::HASH_MODE, 'Hash mode')
                    ->description('If your website uses hash (#) navigation, turn this on. On most WordPress websites this is not relevant.')
                    ->docs('https://docs.simpleanalytics.com/hash-mode');

                $tab->checkbox(SettingName::MANUAL_COLLECT, 'Manually collect page views')
                    ->description('In case you don’t want to auto collect page views, but via `sa_pageview` function in JavaScript.')
                    ->docs('https://docs.simpleanalytics.com/trigger-custom-page-views#use-custom-collection-anyway');

                $tab->checkbox(SettingName::NOSCRIPT, 'Support no JavaScript mode')
                    ->description('Collect analytics from visitors with disabled or no JavaScript.');

                $tab->input(SettingName::ONLOAD_CALLBACK, 'Onload Callback')
                    ->description('JavaScript function to call when the script is loaded.')
                    ->placeholder('Example: sa_event("My event")')
                    ->docs('https://docs.simpleanalytics.com/trigger-custom-page-views#use-custom-collection-anyway');

                $tab->input(SettingName::HOSTNAME, 'Overwrite domain name')
                    ->description('Override the domain that is sent to Simple Analytics. Useful for multi-domain setups.')
                    ->placeholder('Example: example.com')
                    ->docs('https://docs.simpleanalytics.com/overwrite-domain-name');

                $tab->input(SettingName::SA_GLOBAL, 'Global variable name')
                    ->description('Change the global variable name of Simple Analytics. Default is `sa_event`.')
                    ->placeholder('Example: ba_event')
                    ->docs('https://docs.simpleanalytics.com/events#the-variable-sa_event-is-already-used');
            })
            ->tab('Events', function (Tab $tab) {
                $tab->title('Automated events')
                    ->icon(get_icon('events'))
                    ->description("It will track outbound links, email addresses clicks,
                                            and amount of downloads for common files (pdf, csv, docx, xIsx).
                                            Events will appear on your events page on simpleanalytics.com");

                $tab->checkbox(SettingName::AUTOMATED_EVENTS, 'Collect automated events');

                $tab->input(SettingName::EVENT_COLLECT_DOWNLOADS, 'Auto collect downloads')
                    ->placeholder('Example: outbound,emails,downloads')
                    ->docs('https://docs.simpleanalytics.com/automated-events');

                $tab->input(SettingName::EVENT_EXTENSIONS, 'Download file extensions')
                    ->description('Comma separated list of file extensions to track as downloads. E.g. pdf, zip')
                    ->placeholder('Example: pdf, zip')
                    ->docs('https://docs.simpleanalytics.com/automated-events');

                $tab->checkbox(SettingName::EVENT_USE_TITLE, 'Use titles of page')
                    ->description('Use the title of the page as the event name. Default is the URL.')
                    ->docs('https://docs.simpleanalytics.com/automated-events');

                $tab->checkbox(SettingName::EVENT_FULL_URLS, 'Use full URLs')
                    ->description('Use full URLs instead of the path. Default is the path.')
                    ->docs('https://docs.simpleanalytics.com/automated-events');

                $tab->input(SettingName::EVENT_SA_GLOBAL, 'Override global')
                    ->description('Override the global variable name of Simple Analytics. Default is `sa_event`.')
                    ->placeholder('Example: ba_event')
                    ->docs('https://docs.simpleanalytics.com/events#the-variable-sa_event-is-already-used');
            })
            ->register();
    }
}