/** @odoo-module alias=web_timeline.TimelineController **/
/* Copyright 2023 Onestein - Anjeel Haria
 * License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl). */
import AbstractController from "web.AbstractController";
import {FormViewDialog} from "@web/views/view_dialogs/form_view_dialog";
import time from "web.time";
import core from "web.core";
import Dialog from "web.Dialog";
var _t = core._t;
import {Component} from "@odoo/owl";

export default AbstractController.extend({
    custom_events: _.extend({}, AbstractController.prototype.custom_events, {
        onGroupClick: "_onGroupClick",
        onUpdate: "_onUpdate",
        onRemove: "_onRemove",
        onMove: "_onMove",
        onAdd: "_onAdd",
    }),

    /**
     * @override
     */
    init: function (parent, model, renderer, params) {
        this._super.apply(this, arguments);
        this.open_popup_action = params.open_popup_action;
        this.date_start = params.date_start;
        this.date_stop = params.date_stop;
        this.date_delay = params.date_delay;
        this.context = params.actionContext;
        this.moveQueue = [];
        this.debouncedInternalMove = _.debounce(this.internalMove, 0);
    },
    on_detach_callback() {
        if (this.Dialog) {
            this.Dialog();
            this.Dialog = undefined;
        }
        return this._super.apply(this, arguments);
    },
    /**
     * @override
     */
    update: function (params, options) {
        const res = this._super.apply(this, arguments);
        if (_.isEmpty(params)) {
            return res;
        }
        const defaults = _.defaults({}, options, {
            adjust_window: true,
        });
        const domains = params.domain || this.renderer.last_domains || [];
        const contexts = params.context || [];
        const group_bys = params.groupBy || this.renderer.last_group_bys || [];
        this.last_domains = domains;
        this.last_contexts = contexts;
        // Select the group by
        let n_group_bys = group_bys;
        if (!n_group_bys.length && this.renderer.arch.attrs.default_group_by) {
            n_group_bys = this.renderer.arch.attrs.default_group_by.split(",");
        }
        this.renderer.last_group_bys = n_group_bys;
        this.renderer.last_domains = domains;

        let fields = this.renderer.fieldNames;
        fields = _.uniq(fields.concat(n_group_bys));
        $.when(
            res,
            this._rpc({
                model: this.model.modelName,
                method: "search_read",
                kwargs: {
                    fields: fields,
                    domain: domains,
                    order: [{name: this.renderer.arch.attrs.default_group_by}],
                },
                context: this.getSession().user_context,
            }).then((data) =>
                this.renderer.on_data_loaded(data, n_group_bys, defaults.adjust_window)
            )
        );
        return res;
    },

    /**
     * Gets triggered when a group in the timeline is
     * clicked (by the TimelineRenderer).
     *
     * @private
     * @param {EventObject} event
     * @returns {jQuery.Deferred}
     */
    _onGroupClick: function (event) {
        const groupField = this.renderer.last_group_bys[0];
        return this.do_action({
            type: "ir.actions.act_window",
            res_model: this.renderer.fields[groupField].relation,
            res_id: event.data.item.group,
            target: "new",
            views: [[false, "form"]],
        });
    },

    /**
     * Opens a form view of a clicked timeline
     * item (triggered by the TimelineRenderer).
     *
     * @private
     * @param {EventObject} event
     */
    _onUpdate: function (event) {
        this.renderer = event.data.renderer;
        const rights = event.data.rights;
        const item = event.data.item;
        const id = Number(item.evt.id) || item.evt.id;
        const title = item.evt.__name;
        if (this.open_popup_action) {
            this.Dialog = Component.env.services.dialog.add(
                FormViewDialog,
                {
                    resId: id,
                    context: this.getSession().user_context,
                    title: title,
                    onRecordSaved: () => this.write_completed(),
                    resModel: this.model.modelName,
                },
                {}
            );
        } else {
            let mode = "readonly";
            if (rights.write) {
                mode = "edit";
            }
            this.trigger_up("switch_view", {
                view_type: "form",
                res_id: id,
                mode: mode,
                model: this.model.modelName,
            });
        }
    },

    /**
     * Gets triggered when a timeline item is
     * moved (triggered by the TimelineRenderer).
     *
     * @private
     * @param {EventObject} event
     */
    _onMove: function (event) {
        const item = event.data.item;
        const fields = this.renderer.fields;
        const event_start = item.start;
        const event_end = item.end;
        let group = false;
        if (item.group !== -1) {
            group = item.group;
        }
        const data = {};
        // In case of a move event, the date_delay stay the same,
        // only date_start and stop must be updated
        data[this.date_start] = time.auto_date_to_str(
            event_start,
            fields[this.date_start].type
        );
        if (this.date_stop) {
            // In case of instantaneous event, item.end is not defined
            if (event_end) {
                data[this.date_stop] = time.auto_date_to_str(
                    event_end,
                    fields[this.date_stop].type
                );
            } else {
                data[this.date_stop] = data[this.date_start];
            }
        }
        if (this.date_delay && event_end) {
            const diff_seconds = Math.round(
                (event_end.getTime() - event_start.getTime()) / 1000
            );
            data[this.date_delay] = diff_seconds / 3600;
        }
        const grouped_field = this.renderer.last_group_bys[0];
        this._rpc({
            model: this.modelName,
            method: "fields_get",
            args: [grouped_field],
            context: this.getSession().user_context,
        }).then(async (fields_processed) => {
            if (
                this.renderer.last_group_bys &&
                this.renderer.last_group_bys instanceof Array &&
                fields_processed[grouped_field].type !== "many2many"
            ) {
                data[this.renderer.last_group_bys[0]] = group;
            }

            this.moveQueue.push({
                id: event.data.item.id,
                data: data,
                event: event,
            });

            this.debouncedInternalMove();
        });
    },

    /**
     * Write enqueued moves to Odoo. After all writes are finished it updates
     * the view once (prevents flickering of the view when multiple timeline items
     * are moved at once).
     *
     * @returns {jQuery.Deferred}
     */
    internalMove: function () {
        const queues = this.moveQueue.slice();
        this.moveQueue = [];
        const defers = [];
        for (const item of queues) {
            defers.push(
                this._rpc({
                    model: this.model.modelName,
                    method: "write",
                    args: [[item.event.data.item.id], item.data],
                    context: this.getSession().user_context,
                }).then(() => {
                    item.event.data.callback(item.event.data.item);
                })
            );
        }
        return $.when.apply($, defers).done(() => {
            this.write_completed({
                adjust_window: false,
            });
        });
    },

    /**
     * Triggered when a timeline item gets removed from the view.
     * Requires user confirmation before it gets actually deleted.
     *
     * @private
     * @param {EventObject} event
     * @returns {jQuery.Deferred}
     */
    _onRemove: function (event) {
        var def = $.Deferred();

        Dialog.confirm(this, _t("Are you sure you want to delete this record?"), {
            title: _t("Warning"),
            confirm_callback: () => {
                this.remove_completed(event).then(def.resolve.bind(def));
            },
            cancel_callback: def.resolve.bind(def),
        });

        return def;
    },

    /**
     * Triggered when a timeline item gets added and opens a form view.
     *
     * @private
     * @param {EventObject} event
     * @returns {dialogs.FormViewDialog}
     */
    _onAdd: function (event) {
        const item = event.data.item;
        // Initialize default values for creation
        const default_context = {};
        default_context["default_".concat(this.date_start)] = item.start;
        if (this.date_delay) {
            default_context["default_".concat(this.date_delay)] = 1;
        }
        if (this.date_start) {
            default_context["default_".concat(this.date_start)] = moment(item.start)
                .utc()
                .format("YYYY-MM-DD HH:mm:ss");
        }
        if (this.date_stop && item.end) {
            default_context["default_".concat(this.date_stop)] = moment(item.end)
                .utc()
                .format("YYYY-MM-DD HH:mm:ss");
        }
        if (this.date_delay && this.date_start && this.date_stop && item.end) {
            default_context["default_".concat(this.date_delay)] =
                (moment(item.end) - moment(item.start)) / 3600000;
        }
        if (item.group > 0) {
            default_context["default_".concat(this.renderer.last_group_bys[0])] =
                item.group;
        }
        // Show popup
        this.Dialog = Component.env.services.dialog.add(
            FormViewDialog,
            {
                resId: false,
                context: _.extend(default_context, this.context),
                onRecordSaved: (record) => this.create_completed([record.res_id]),
                resModel: this.model.modelName,
            },
            {onClose: () => event.data.callback()}
        );
        return false;
    },

    /**
     * Triggered upon completion of a new record.
     * Updates the timeline view with the new record.
     *
     * @param {RecordId} id
     * @returns {jQuery.Deferred}
     */
    create_completed: function (id) {
        return this._rpc({
            model: this.model.modelName,
            method: "read",
            args: [id, this.model.fieldNames],
            context: this.context,
        }).then((records) => {
            var new_event = this.renderer.event_data_transform(records[0]);
            var items = this.renderer.timeline.itemsData;
            items.add(new_event);
        });
    },

    /**
     * Triggered upon completion of writing a record.
     * @param {ControllerOptions} options
     */
    write_completed: function (options) {
        const params = {
            domain: this.renderer.last_domains,
            context: this.context,
            groupBy: this.renderer.last_group_bys,
        };
        this.update(params, options);
    },

    /**
     * Triggered upon confirm of removing a record.
     * @param {EventObject} event
     * @returns {jQuery.Deferred}
     */
    remove_completed: function (event) {
        return this._rpc({
            model: this.modelName,
            method: "unlink",
            args: [[event.data.item.id]],
            context: this.getSession().user_context,
        }).then(() => {
            let unlink_index = false;
            for (var i = 0; i < this.model.data.data.length; i++) {
                if (this.model.data.data[i].id === event.data.item.id) {
                    unlink_index = i;
                }
            }
            if (!isNaN(unlink_index)) {
                this.model.data.data.splice(unlink_index, 1);
            }
            event.data.callback(event.data.item);
        });
    },
});