const Setting = require('./Setting.js');
const validInfractions = ['WARN', 'MUTE', 'KICK', 'BAN', 'SOFTBAN'];

module.exports = class FilterSetting extends Setting {

    async _action(message, args, setting, { _wordWatcher } = {}) {

        const { resolver } = this.client;
        const submethod = args.shift().toLowerCase();
        const resolved = await resolver.resolveMethod([submethod], {
            allowedMethods: ['add', 'remove', 'edit', 'list', 'reset']
        });
        if (!resolved) return { error: true, msg: message.format('ERR_INVALID_METHOD', { method: submethod }) };

        let result = null,
            index = null;
        if (resolved.method === 'add') {
            if (setting.actions.length >= 5 && _wordWatcher) return {
                error: true,
                msg: message.format('S_WORDWATCHER_ACTION_LIMIT')
            };
            result = await this._createAction(message, setting, { _wordWatcher });
            index = 'S_FILTER_ACTION_ADD';
        } else if (resolved.method === 'edit') {
            result = await this._editAction(message, setting);
            index = 'S_FILTER_ACTION_EDIT';
        } else if (resolved.method === 'remove') {
            result = await this._removeAction(message, setting);
            index = 'S_FILTER_ACTION_REMOVE';
        } else if (resolved.method === 'list') {
            this._listActions(message, setting);
            return;
        } else if (resolved.method === 'reset') {
            result = {};
            setting.actions = [];
            index = 'S_FILTER_ACTION_RESET';
        }

        if (result.error) return result;

        //setting.actions.push(result);
        //console.log(result);
        return {
            index,
            type: result.type,
            duration: result.duration ? resolver.timeAgo(result.duration) : 'INF',
            points: result.points || message.format('ON_OFF_TOGGLE', { toggle: false }, true),
            force: message.format('ON_OFF_TOGGLE', { toggle: result.force }, true),
            prune: message.format('ON_OFF_TOGGLE', { toggle: result.prune }, true),
            trigger: result.trigger instanceof Array ? '||' + result.trigger.join(', ') + '||' : '`' + result.trigger + '`'
        };
    }

    async _createAction(message, setting, { _wordWatcher }) {

        const actionObject = { type: null, duration: null, points: null, expiration: null, force: false, prune: false };

        const valid = [...validInfractions];
        if (_wordWatcher) valid.push('DELETE'); //Used for wordwatcher quick actions to just delete the flagged message
        let response = await message.prompt(message.format('S_FILTER_ACTION_ADD_START', { valid: valid.join('`, `'), wordwatcher: _wordWatcher ? message.format('S_WORDWATCHER_ACTION_ADD_START', { amount: setting.actions.length }) : '' }));
        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };

        const { resolver } = this.client;
        const [action] = response.content.toLowerCase().split(' ');

        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        const infType = resolver.resolveInfraction(action); 
        if ((!infType || !validInfractions.includes(infType)) && !['del', 'delete'].includes(action)) return { error: true, msg: message.format('S_FILTER_INVALID_INFRACTION', { valid: validInfractions.join('`, `') }) };
        actionObject.type = infType;

        //Add a duration to the action
        if (['MUTE', 'BAN'].includes(infType)) {

            response = await message.prompt(message.format('S_FILTER_ACTION_ADD_TIMER', { action: infType }));
            if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
            if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
                error: true,
                msg: message.format('ERR_CANCEL')
            };

            if (!['no', 'n'].includes(response.content.toLowerCase())) {
                const time = resolver.resolveTime(response.content);
                if (!time) message.formattedRespond('S_FILTER_ACTION_ADD_TIMER_FAIL');
                else actionObject.duration = time;
            }

        }

        const settings = message.guild._settings;
        //Add points & expiration to action if modpoints are enabled
        if (settings.moderationPoints?.enabled) {

            // Points
            response = await message.prompt(message.format('S_FILTER_ACTION_ADD_POINTS'));
            if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
            if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
                error: true,
                msg: message.format('ERR_CANCEL')
            };

            if (!['no', 'n'].includes(response.content.toLowerCase())) {

                const points = /(\d{1,3})\s?(points?|pts?|p)?/iu;
                const match = response.content.match(points);
                if (!match) message.formattedRespond('S_FILTER_ACTION_ADD_POINTS_FAIL');
                else {
                    let value = parseInt(match[1]);
                    if (value < 0 || value > 100) {
                        if (value < 0) value = 0;
                        else value = 100;
                        message.formattedRespond('S_FILTER_ACTION_ADD_POINTS_RANGE', { params: { value } });
                    }
                    actionObject.points = value;
                }

            }

            // Expiration
            if (actionObject.points) {
                response = await message.prompt(message.format('S_FILTER_ACTION_ADD_EXPIRATION'));
                if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
                if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
                    error: true,
                    msg: message.format('ERR_CANCEL')
                };

                if (!['no', 'n'].includes(response.content.toLowerCase())) {

                    const time = resolver.resolveTime(response.content);
                    if (!time) message.formattedRespond('S_FILTER_ACTION_ADD_EXPIRATION_FAIL');
                    else actionObject.expiration = time;

                }
            }

        }

        //Should it force the action if automod is enabled
        if (settings.autoModeration?.enabled) {

            response = await message.prompt(message.format('S_FILTER_ACTION_ADD_FORCE'));
            if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
            if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
                error: true,
                msg: message.format('ERR_CANCEL')
            };

            if (['yes', 'ye', 'y'].includes(response.content.toLowerCase())) {
                actionObject.force = true;
            }

        }

        //Should the action also prune the user's messages
        if (infType !== 'SOFTBAN') {
            response = await message.prompt(message.format('S_FILTER_ACTION_ADD_PRUNE'));
            if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
            if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
                error: true,
                msg: message.format('ERR_CANCEL')
            };

            if (['yes', 'ye', 'y'].includes(response.content.toLowerCase())) {
                actionObject.prune = true;
            }
        }

        //What should trigger the action?
        //Implemented in the subclass
        const result = await this._createTrigger(message, action, actionObject, setting);
        if (result && result.error) return result;
        
        setting.actions.push(actionObject);
        return actionObject;

    }

    async _createTrigger() {
        throw new Error(`${this.name} requires an implementation for \`_createTrigger\``);
    }

    async _removeAction(message, setting) {

        const { actions } = setting;
        const embed = this._createActionEmbed(message, setting);
        const response = await message.prompt({ content: message.format('S_FILTER_ACTION_REMOVE_START'), embed }, { time: 60 * 1000 });
        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };

        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        const index = parseInt(response.content);
        if (isNaN(index)) return { error: true, msg: message.format('ERR_NAN') };
        if (index < 0 || index > actions.length - 1) return { error: true, msg: message.format('ERR_INDEX_OUT_OF_BOUNDS') };

        return setting.actions.splice(index, 1)[0];

    }

    async _editAction(message, setting) {

        const { actions } = setting;
        const embed = this._createActionEmbed(message, setting);
        let response = await message.prompt({ content: message.format('S_FILTER_ACTION_EDIT_START'), embed }, { time: 60 * 1000 });

        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        const index = parseInt(response.content);
        if (isNaN(index)) return { error: true, msg: message.format('ERR_NAN') };
        if (index < 0 || index > actions.length - 1) return { error: true, msg: message.format('ERR_INDEX_OUT_OF_BOUNDS') };

        const action = actions[index];

        //Which property do you want to edit?
        const properties = Object.keys(action);
        response = await message.prompt(message.format('S_FILTER_ACTION_EDIT_SELECT', { properties: properties.join('`, `') }));

        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        const prop = response.content.toLowerCase();
        if (!properties.includes(prop)) return {
            error: true,
            msg: message.format('S_FILTER_ACTION_EDIT_BADPROP')
        };

        if (prop === 'trigger') return this._editTrigger(message, setting, action);
        else if (prop === 'duration') return this._editDuration(message, setting, action);
        else if (prop === 'points') return this._editPoints(message, setting, action);
        else if (prop === 'expiration') return this._editExpiration(message, setting, action);
        else if (prop === 'action') return this._editType(message, setting, action);
        else if (['force', 'prune'].includes(prop)) return this._editBool(message, setting, action, prop);

    }

    async _editExpiration(message, setting, action) {

        if (!message.guild._settings.moderationPoints?.enabled) return {
            error: true,
            msg: message.format('S_FILTER_ACTION_EDIT_POINTS_DISABLED')
        };

        const response = await message.prompt(message.format('S_FILTER_ACTION_EDIT_EXPIRATION', {}), { time: 60 * 1000 });

        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        const { resolver } = this.client;

        const time = resolver.resolveTime(response.content);
        if (time === null) message.formattedRespond('S_FILTER_ACTION_ADD_EXPIRATION_FAIL');
        else action.expiration = time;

    }

    async _editBool(message, setting, action, prop) {

        const response = await message.prompt(message.format('S_FILTER_ACTION_EDIT_BOOL', { prop }), { time: 120 * 1000 });
        const { resolver } = this.client;

        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        const bool = resolver.resolveBoolean(response.content);
        if (bool === null) return {
            error: true,
            msg: message.format('S_FILTER_ACTION_EDIT_BOOL_INVALID')
        };

        action[prop] = bool;
        return action;

    }

    async _editPoints(message, setting, action) {

        if (!message.guild._settings.moderationPoints?.enabled) return {
            error: true,
            msg: message.format('S_FILTER_ACTION_EDIT_POINTS_DISABLED')
        };

        const response = await message.prompt(message.format('S_FILTER_ACTION_EDIT_POINTS', {}), { time: 60 * 1000 });

        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        const reg = /(\d{1,3})\s?(points?|pts?|p)?/iu;
        if (!reg.test(response.content)) return {
            error: true,
            msg: message.format('S_FILTER_ACTION_EDIT_POINTS_FAIL')
        };

        const match = response.content.match(reg);
        let points = parseInt(match[1]);
        if (points < 0 || points > 100) {
            if (points < 0) points = 0;
            else if (points > 100) points = 100;
            message.respond('S_FILTER_ACTION_ADD_POINTS_RANGE', { value: points });
        }

        action.points = points;
        return action;

    }

    async _editType(message, setting, action) {

        const response = await message.prompt(message.format('S_FILTER_ACTION_EDIT_TYPE', { valid: validInfractions.join('`, `') }), { time: 120 * 1000 });

        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        if (!validInfractions.includes(response.content.toUpperCase())) return {
            error: true,
            msg: message.format('S_FILTER_ACTION_EDIT_INVALID_TYPE')
        };

        action.type = response.content.toUpperCase();
        if (['BAN', 'MUTE'].includes(action.type) && !action.duration) return this._editDuration(message, setting, action);

        action.duration = 0;
        return action;

    }

    async _editDuration(message, setting, action) {

        if (!['MUTE', 'BAN'].includes(action.type)) return {
            error: true,
            msg: message.format('S_FILTER_ACTION_EDIT_DURATION_ERR', { action: action.type })
        };

        const response = await message.prompt(message.format('S_FILTER_ACTION_EDIT_DURATION', {}), { time: 120 * 1000 });
        const { resolver } = this.client;

        if (!response) return { error: true, msg: message.format('ERR_TIMEOUT') };
        if (['cancel', 'abort', 'exit'].includes(response.content.toLowerCase())) return {
            error: true,
            msg: message.format('ERR_CANCEL')
        };

        if (response.content === '0') {
            action.duration = 0;
        } else {
            const time = resolver.resolveTime(response.content);
            if (!time) return {
                error: true,
                msg: message.format('S_FILTER_ACTION_EDIT_DURATION_ERR2')
            };
            action.duration = time;
        }

        return action;

    }

    async _listActions(message, setting) {

        if (!setting.actions.length) return message.formattedRespond('S_FILTER_NOACTIONS');
        return message.respond(message.format('S_FILTER_CURRENT_ACTIONS'), { embed: this._createActionEmbed(message, setting) });

    }

    //Create embed to display current actions
    _createActionEmbed(message, setting) {

        const { resolver } = this.client;
        const { actions } = setting;
        const embed = {
            fields: actions.map((action) => {
                return {
                    name: `**[${actions.indexOf(action)}]** ${action.type}`,
                    value: message.format('S_FILTER_ACTION_PROPERTIES', {
                        duration: action.duration ? resolver.timeAgo(action.duration) : 'INF',
                        points: action.points || message.format('ON_OFF_TOGGLE', { toggle: false }, true),
                        prune: message.format('ON_OFF_TOGGLE', { toggle: action.prune }, true),
                        force: message.format('ON_OFF_TOGGLE', { toggle: action.force }, true),
                        trigger: action.trigger instanceof Array ? action.trigger.join(', ') : '`' + action.trigger + '`'
                    }),
                    inline: true
                };
            }),
            color: 619452
        };
        if (embed.fields.length % 3 === 2) embed.fields.push({
            name: '\u200b',
            value: '\u200b',
            inline: true
        });
        return embed;

    }

};