const { Setting } = require('../../../../interfaces/');

const CONSTANTS = {
    INFRACTIONS: ['WARN', 'MUTE', 'KICK', 'SOFTBAN', 'BAN', 'VCMUTE', 'VCKICK', 'VCBAN'],
    TIMED: ['MUTE', 'BAN', 'VCMUTE', 'VCBAN']
};

class AutoModerationSetting extends Setting {

    constructor(client) {
        super(client, {
            name: 'autoModeration',
            module: 'moderation',
            aliases: ['automod'],
            resolve: 'GUILD',
            usage: `<method> <points|value> <action|value> [time]`,
            examples: [
                'automod on',
                'automod threshold 10 mute 3 hours',
                'automod length 10 2 hours',
                'automod useprevious on'
            ],
            default: {
                autoModeration: {
                    enabled: false,
                    thresholds: {

                    },
                    usePrevious: false // use previous threshold if no new threshold is exceeded
                }
            },
            archivable: true
        });  
    }

    async handle(message, args) {

        const setting = message.guild._settings[this.index];

        const [method, ...params] = args;
        let index = null,
            langParams = {};
        
        const { resolver } = this.client;

        if (resolver.resolveBoolean(method)) {
            setting.enabled = true;
            index = 'S_AUTOMOD_TOGGLE';
            langParams = { toggle: message.format('ON_OFF_TOGGLE', { toggle: true }, true) };
        } else if (resolver.resolveBoolean(method) === false) {
            setting.enabled = false;
            index = 'S_AUTOMOD_TOGGLE';
            langParams = { toggle: message.format('ON_OFF_TOGGLE', { toggle: false }, true) };
        } else if (method.toLowerCase() === 'threshold') {

            const points = parseInt(params.shift());
            if (isNaN(points) || points < 0 || points > 100) return { error: true, msg: message.format('S_AUTOMOD_INVALID_POINTS', {}) };
            
            const action = params.shift()?.toLowerCase();
            if (!action) return { error: true, msg: message.format('S_AUTOMOD_NOARG') };

            if (['delete', 'remove'].includes(action)) {
                const old = setting.thresholds[points];
                if (old) {
                    index = 'S_AUTOMOD_REMOVE_POINTS';
                    langParams = { type: old.type, points };
                    delete setting.thresholds[points];
                } else {
                    return { error: true, msg: message.format('S_AUTOMOD_REMOVE_NOPOINTS', { points }) };
                }
            } else {

                const infraction = resolver.resolveInfraction(action);
                if (!CONSTANTS.INFRACTIONS.includes(infraction)) return { error: true, msg: message.format('S_AUTOMOD_INVALID_TYPE', { infraction }) };
                const old = setting.thresholds[points];
                const timed = CONSTANTS.TIMED.includes(infraction);

                const _time = params.join(' ');
                const time = resolver.resolveTime(_time);

                if (old) {
                    index = timed && time ? 'S_AUTOMOD_OVERWRITE_POINTS_TIMED' : 'S_AUTOMOD_OVERWRITE_POINTS';
                    langParams = { type: infraction, points, oldType: old.type, time: resolver.timeAgo(time, true, true, true) };
                } else {
                    index = timed && time ? 'S_AUTOMOD_ADD_POINTS_TIMED' : 'S_AUTOMOD_ADD_POINTS';
                    langParams = { type: infraction, points, time: resolver.timeAgo(time, true, true, true) };
                }
                setting.thresholds[points] = { type: infraction };
                if (timed && time) setting.thresholds[points].length = time;

            }

        } else if (method.toLowerCase() === 'length') {

            const points = parseInt(params.shift());
            if (isNaN(points) || points < 0 || points > 100) return { error: true, msg: message.format('S_AUTOMOD_INVALID_POINTS', {}) };

            const action = params.shift()?.toLowerCase();
            if (!action) return { error: true, msg: message.format('S_AUTOMOD_NOARG') };

            if (!setting.thresholds[points]) return { error: true, msg: message.format('S_AUTOMOD_NOACTION') };

            if (['delete', 'remove'].includes(action)) {
                delete setting.thresholds[points].length;
                index = 'S_AUTOMOD_REMOVE_LENGTH';
                langParams = { type: setting.thresholds[points].type, points };
            } else {
                const [, , ..._time] = args;
                const time = resolver.resolveTime(_time.join(' '));
                if (!time) return { error: true, msg: message.format('ERR_INVALID_TIMESTRING') };
                setting.thresholds[points].length = time;
                index = 'S_AUTOMOD_LENGTH_SUCCESS';
            }

        } else if (['useprev', 'useprevious', 'previous'].includes(method.toLowerCase())) {

            const bool = resolver.resolveBoolean(params[0]);
            if (bool) setting.usePrevious = bool;
            else if (bool === false) setting.usePrevious = bool;
            else return { error: true, msg: message.format('ERR_BOOLEAN_RESOLVE', { resolveable: params[0] }) };

            index = 'S_AUTOMOD_USEPREV_TOGGLE';
            langParams = { toggle: message.format('ON_OFF_TOGGLE', { toggle: bool }, true) };

        }

        await message.guild._updateSettings({ [this.index]: setting });
        return { msg: message.format(index, langParams), error: false };

    }

    fields(guild) {
        const setting = guild._settings[this.index];
        const { resolver } = this.client;

        return [
            {
                name: "》 Status",
                value: guild.format('SETTING_STATUS', { bool: Boolean(setting.enabled) }, true),
                inline: true
            },
            {
                name: '》 Use previous threshold',
                value: guild.format('SETTING_STATUS', { bool: Boolean(setting.usePrevious) }, true),
                inline: true
            },
            {
                name: '》 Thresholds',
                value: Object.entries(setting.thresholds).reduce((acc, [points, action]) => {
                    acc.push(`**${points}:** \`${action.type}\`${action.length ? ', ' + resolver.timeAgo(action.length) : ''}`);
                    return acc;
                }, []).join('\n') || '`N/A`'
            }
        ];
    }

}

module.exports = AutoModerationSetting;