frappe.provide('erpnext.stock');

erpnext.stock.ItemDashboard = class ItemDashboard {
	constructor(opts) {
		$.extend(this, opts);
		this.make();
	}
	make() {
		var me = this;
		this.start = 0;
		if (!this.sort_by) {
			this.sort_by = 'projected_qty';
			this.sort_order = 'asc';
		}

		this.content = $(frappe.render_template('item_dashboard')).appendTo(this.parent);
		this.result = this.content.find('.result');

		this.content.on('click', '.btn-move', function () {
			handle_move_add($(this), "Move");
		});

		this.content.on('click', '.btn-add', function () {
			handle_move_add($(this), "Add");
		});

		this.content.on('click', '.btn-edit', function () {
			let item = unescape($(this).attr('data-item'));
			let warehouse = unescape($(this).attr('data-warehouse'));
			let company = unescape($(this).attr('data-company'));
			frappe.db.get_value('Putaway Rule', {
				'item_code': item,
				'warehouse': warehouse,
				'company': company
			}, 'name', (r) => {
				frappe.set_route("Form", "Putaway Rule", r.name);
			});
		});

		function handle_move_add(element, action) {
			let item = unescape(element.attr('data-item'));
			let warehouse = unescape(element.attr('data-warehouse'));
			let actual_qty = unescape(element.attr('data-actual_qty'));
			let disable_quick_entry = Number(unescape(element.attr('data-disable_quick_entry')));
			let entry_type = action === "Move" ? "Material Transfer" : null;

			if (disable_quick_entry) {
				open_stock_entry(item, warehouse, entry_type);
			} else {
				if (action === "Add") {
					let rate = unescape($(this).attr('data-rate'));
					erpnext.stock.move_item(item, null, warehouse, actual_qty, rate, function () {
						me.refresh();
					});
				} else {
					erpnext.stock.move_item(item, warehouse, null, actual_qty, null, function () {
						me.refresh();
					});
				}
			}
		}

		function open_stock_entry(item, warehouse, entry_type) {
			frappe.model.with_doctype('Stock Entry', function () {
				var doc = frappe.model.get_new_doc('Stock Entry');
				if (entry_type) doc.stock_entry_type = entry_type;

				var row = frappe.model.add_child(doc, 'items');
				row.item_code = item;
				row.s_warehouse = warehouse;

				frappe.set_route('Form', doc.doctype, doc.name);
			});
		}

		// more
		this.content.find('.btn-more').on('click', function () {
			me.start += me.page_length;
			me.refresh();
		});

	}
	refresh() {
		if(this.before_refresh) {
			this.before_refresh();
		}

		let args = {
			item_code: this.item_code,
			warehouse: this.warehouse,
			parent_warehouse: this.parent_warehouse,
			item_group: this.item_group,
			company: this.company,
			start: this.start,
			sort_by: this.sort_by,
			sort_order: this.sort_order
		};

		var me = this;
		frappe.call({
			method: this.method,
			args: args,
			callback: function (r) {
				me.render(r.message);
			}
		});
	}
	render(data) {
		if (this.start===0) {
			this.max_count = 0;
			this.result.empty();
		}

		let context = "";
		if (this.page_name === "warehouse-capacity-summary") {
			context = this.get_capacity_dashboard_data(data);
		} else {
			context = this.get_item_dashboard_data(data, this.max_count, true);
		}

		this.max_count = this.max_count;

		// show more button
		if (data && data.length === (this.page_length + 1)) {
			this.content.find('.more').removeClass('hidden');

			// remove the last element
			data.splice(-1);
		} else {
			this.content.find('.more').addClass('hidden');
		}

		// If not any stock in any warehouses provide a message to end user
		if (context.data.length > 0) {
			this.content.find('.result').css('text-align', 'unset');
			$(frappe.render_template(this.template, context)).appendTo(this.result);
		} else {
			var message = __("No Stock Available Currently");
			this.content.find('.result').css('text-align', 'center');

			$(`<div class='text-muted' style='margin: 20px 5px;'>
				${message} </div>`).appendTo(this.result);
		}
	}

	get_item_dashboard_data(data, max_count, show_item) {
		if(!max_count) max_count = 0;
		if(!data) data = [];

		data.forEach(function (d) {
			d.actual_or_pending = d.projected_qty + d.reserved_qty + d.reserved_qty_for_production + d.reserved_qty_for_sub_contract;
			d.pending_qty = 0;
			d.total_reserved = d.reserved_qty + d.reserved_qty_for_production + d.reserved_qty_for_sub_contract;
			if (d.actual_or_pending > d.actual_qty) {
				d.pending_qty = d.actual_or_pending - d.actual_qty;
			}

			max_count = Math.max(d.actual_or_pending, d.actual_qty,
				d.total_reserved, max_count);
		});

		let can_write = 0;
		if (frappe.boot.user.can_write.indexOf("Stock Entry") >= 0) {
			can_write = 1;
		}

		return {
			data: data,
			max_count: max_count,
			can_write: can_write,
			show_item: show_item || false
		};
	}

	get_capacity_dashboard_data(data) {
		if (!data) data = [];

		data.forEach(function (d) {
			d.color = d.percent_occupied >= 80 ? "#f8814f" : "#2490ef";
		});

		let can_write = 0;
		if (frappe.boot.user.can_write.indexOf("Putaway Rule") >= 0) {
			can_write = 1;
		}

		return {
			data: data,
			can_write: can_write,
		};
	}
};

erpnext.stock.move_item = function (item, source, target, actual_qty, rate, callback) {
	var dialog = new frappe.ui.Dialog({
		title: target ? __('Add Item') : __('Move Item'),
		fields: [{
			fieldname: 'item_code',
			label: __('Item'),
			fieldtype: 'Link',
			options: 'Item',
			read_only: 1
		},
		{
			fieldname: 'source',
			label: __('Source Warehouse'),
			fieldtype: 'Link',
			options: 'Warehouse',
			read_only: 1
		},
		{
			fieldname: 'target',
			label: __('Target Warehouse'),
			fieldtype: 'Link',
			options: 'Warehouse',
			reqd: 1,
			get_query() {
				return {
					filters: {
						is_group: 0
					}
				}
			}
		},
		{
			fieldname: 'qty',
			label: __('Quantity'),
			reqd: 1,
			fieldtype: 'Float',
			description: __('Available {0}', [actual_qty])
		},
		{
			fieldname: 'rate',
			label: __('Rate'),
			fieldtype: 'Currency',
			hidden: 1
		},
		],
	});
	dialog.show();
	dialog.get_field('item_code').set_input(item);

	if (source) {
		dialog.get_field('source').set_input(source);
	} else {
		dialog.get_field('source').df.hidden = 1;
		dialog.get_field('source').refresh();
	}

	if (rate) {
		dialog.get_field('rate').set_value(rate);
		dialog.get_field('rate').df.hidden = 0;
		dialog.get_field('rate').refresh();
	}

	if (target) {
		dialog.get_field('target').df.read_only = 1;
		dialog.get_field('target').value = target;
		dialog.get_field('target').refresh();
	}

	dialog.set_primary_action(__('Create Stock Entry'), function () {
		if (source && (dialog.get_value("qty") == 0 || dialog.get_value("qty") > actual_qty)) {
			frappe.msgprint(__("Quantity must be greater than zero, and less or equal to {0}", [actual_qty]));
			return;
		}

		if (dialog.get_value("source") === dialog.get_value("target")) {
			frappe.msgprint(__("Source and target warehouse must be different"));
			return;
		}

		frappe.model.with_doctype('Stock Entry', function () {
			let doc = frappe.model.get_new_doc('Stock Entry');
			doc.from_warehouse = dialog.get_value('source');
			doc.to_warehouse = dialog.get_value('target');
			doc.stock_entry_type = doc.from_warehouse ? "Material Transfer" : "Material Receipt";
			let row = frappe.model.add_child(doc, 'items');
			row.item_code = dialog.get_value('item_code');
			row.s_warehouse = dialog.get_value('source');
			row.t_warehouse = dialog.get_value('target');
			row.qty = dialog.get_value('qty');
			row.conversion_factor = 1;
			row.transfer_qty = dialog.get_value('qty');
			row.basic_rate = dialog.get_value('rate');
			frappe.set_route('Form', doc.doctype, doc.name);
		});
	});
};