/**
 * 坯布出仓单（其他出货单）表单 mixin（新增/编辑共用）
 *
 * 业务说明：
 * 1. 后端当前仅提供「坯布其他出货单」一种类型的接口，故出仓类型固定为 other，
 *    表头保留接收单位(business_unit) / 出货日期 / 备注 等字段。
 * 2. 用户先填写表头并「提交保存」(addGfmOtherDeliveryOrder)，拿到出仓单 id 后即可扫码；
 *    扫码新增/删除细码走 updateGfmOtherDeliveryOrder；勾选锁定维度时附带 *_lock 字段，操作后用返回的最新详情刷新。
 * 3. 后端没有「修改表头」接口，保存成功或编辑进入后表头变为只读，仅可扫码维护细码。
 */
import util from '@/common/util';
import scanMixin from '@/common/scanMixin.js';
import {
	AUDIT_STATUS_MAP,
	BILL_TYPES,
	normalizeOrder,
	mapToSelectOptions,
	getFineCodeScanCode,
	canScanAtStatus,
	isLockedOrderStatus,
	getFormStatusActionButtons,
	orderToFormFields,
	confirmOrderStatusAction,
	DRAFT_AUDIT_STATUS,
	DRAFT_AUDIT_STATUS_NAME,
	getEmptyScanDetail,
	findScanContext,
	buildScanDetailFromContext,
	buildScanDetailFromOrderResponse,
	buildScanUpdateParams,
	getOrderDisplayWeight,
	getFineCodeDisplayWeight,
} from '@/common/storeFabricBusinessOut';

export default {
	mixins: [scanMixin],
	data() {
		return {
			pageMode: 'add',
			orderId: 0,
			form: this.getEmptyForm(),
			headerSaved: false,
			selectShow: false,
			selectList: [],
			selectType: '',
			canScan: false,
			QRBarCode: '',
			BarCodeDelStatus: false,
			BillDataMessage: '',
			currentScanItem: null,
			fabricInfoShow: false,
			fineCodeShow: false,
			currentFabricInfo: {},
			currentFineCodes: [],
			currentGroupKey: '',
			scanDetail: getEmptyScanDetail(),
			scanGroupKeys: [],
			lastScanCode: '',
			billTypeName: (BILL_TYPES[0] || {}).label || '坯布其他出货单',
			auditStatus: 0,
			businessUnitOptions: [],
			dropdownLoading: false,
		};
	},
	computed: {
		isReadonly() {
			return this.pageMode === 'view';
		},
		isEditable() {
			return this.pageMode === 'add' || this.pageMode === 'edit';
		},
		// 表头是否可编辑：仅新增且未保存时可编辑（后端无修改表头接口）
		headerEditable() {
			return this.pageMode === 'add' && !this.headerSaved;
		},
		dateLabel() {
			return '出货日期';
		},
		/** 表头保存后，待审核/已驳回状态下显示审核、作废 */
		statusActionButtons() {
			return getFormStatusActionButtons(this.headerSaved, this.orderId, this.auditStatus);
		},
		displayAuditStatus() {
			if (this.pageMode === 'add' && !this.headerSaved) return DRAFT_AUDIT_STATUS;
			return this.auditStatus;
		},
		displayAuditStatusName() {
			if (this.pageMode === 'add' && !this.headerSaved) return DRAFT_AUDIT_STATUS_NAME;
			return AUDIT_STATUS_MAP[this.auditStatus] || '';
		},
	},
	onShow() {
		this.isPageActive = true;
		// #ifdef APP-PLUS
		if (this.canScan && this.isEditable) {
			this.registerScanBroadcast((scanResult) => {
				this.QRBarCode = scanResult.trim().replace(/[\r\n]/g, '');
				this.$nextTick(() => this.handleScan());
			});
		}
		// #endif
	},
	onHide() {
		this.isPageActive = false;
		// #ifdef APP-PLUS
		this.unregisterScanBroadcast();
		// #endif
	},
	onUnload() {
		this.isPageActive = false;
		// #ifdef APP-PLUS
		this.unregisterScanBroadcast();
		// #endif
	},
	methods: {
		registerOrderScanBroadcast() {
			// #ifdef APP-PLUS
			this.registerScanBroadcast((scanResult) => {
				this.QRBarCode = scanResult.trim().replace(/[\r\n]/g, '');
				this.$nextTick(() => this.handleScan());
			});
			// #endif
		},
		syncCanScanFromStatus(status) {
			const nextCanScan = this.isEditable && canScanAtStatus(status);
			if (this.canScan && !nextCanScan) {
				// #ifdef APP-PLUS
				this.unregisterScanBroadcast();
				// #endif
			}
			this.canScan = nextCanScan;
		},
		loadBaseDropdowns() {
			if (this.dropdownLoading) return Promise.resolve();
			if (this.businessUnitOptions.length) {
				return Promise.resolve();
			}
			this.dropdownLoading = true;
			return this.ensureBusinessUnitOptions().finally(() => {
				this.dropdownLoading = false;
			});
		},
		ensureBusinessUnitOptions() {
			if (this.businessUnitOptions.length) return Promise.resolve(this.businessUnitOptions);
			return this.$u.api.businessUnit.list({})
				.then((res) => {
					this.businessUnitOptions = mapToSelectOptions(res);
					return this.businessUnitOptions;
				});
		},
		getEmptyForm() {
			return {
				order_no: '',
				business_unit_id: '',
				business_unit_name: '',
				delivery_time: this.$u.timeFormat(new Date(), 'yyyy-mm-dd'),
				remark: '',
				item_data: [],
			};
		},
		loadOrder(id, options = {}) {
			const { rejectIfLocked = false } = options;
			return this.$u.api.gfmOtherDeliveryOrder.detail({ id })
				.then((res) => {
					const order = normalizeOrder(res);
					if (!order) {
						this.showError('单据不存在');
						return null;
					}
					if (rejectIfLocked && isLockedOrderStatus(order.audit_status)) {
						this.showError('当前状态不可编辑');
						setTimeout(() => uni.navigateBack(), 1500);
						return null;
					}
					this.orderId = order.id;
					this.auditStatus = order.audit_status;
					this.headerSaved = true;
					this.form = orderToFormFields(order);
					this.refreshScanDetailTotals(order);
					this.syncCanScanFromStatus(order.audit_status);
					if (this.canScan) this.registerOrderScanBroadcast();
					return order;
				})
				.catch((e) => {
					this.showError(e.message || '加载单据失败');
					return null;
				});
		},
		pickerSelectFun(type) {
			if (!this.headerEditable) return;
			this.selectType = type;
			const openPicker = (list) => {
				if (!list.length) {
					this.showError('暂无可选数据');
					return;
				}
				this.selectList = list;
				this.selectShow = true;
			};
			if (type === '接收单位') {
				this.ensureBusinessUnitOptions()
					.then(openPicker)
					.catch((e) => this.showError(e.message || '加载单位列表失败'));
			}
		},
		selectConfirmFun(e) {
			const item = e[0];
			if (this.selectType === '接收单位') {
				this.form.business_unit_id = item.value;
				this.form.business_unit_name = item.label;
			}
		},
		bindDateChange(e) {
			this.form.delivery_time = e.detail.value;
		},
		validateForm() {
			if (!this.form.business_unit_id) return '请选择接收单位';
			if (!this.form.delivery_time) return '请选择出货日期';
			return '';
		},
		buildAddParam() {
			return {
				business_unit_id: Number(this.form.business_unit_id),
				delivery_time: this.form.delivery_time,
				remark: this.form.remark || '',
			};
		},
		submitSave() {
			if (this.headerSaved) {
				this.showError('表头已保存，请直接扫码维护细码');
				return;
			}
			const err = this.validateForm();
			if (err) {
				this.showError(err);
				return;
			}
			uni.showLoading({ title: '保存中...' });
			this.$u.api.gfmOtherDeliveryOrder.add(this.buildAddParam())
				.then((res) => {
					this.orderId = (res && res.id) || 0;
					if (!this.orderId) {
						throw new Error('保存失败，未返回单据ID');
					}
					return this.$u.api.gfmOtherDeliveryOrder.detail({ id: this.orderId });
				})
				.then((detail) => {
					uni.hideLoading();
					const order = normalizeOrder(detail);
					this.applyOrder(order);
					this.headerSaved = true;
					this.syncCanScanFromStatus(order.audit_status);
					this.showSuccess('保存成功，可以扫码');
					this.registerOrderScanBroadcast();
				})
				.catch((e) => {
					uni.hideLoading();
					this.showError(e.message || '保存失败');
				});
		},
		applyOrder(order) {
			if (!order) return;
			this.auditStatus = order.audit_status;
			Object.assign(this.form, orderToFormFields(order));
			this.refreshScanDetailTotals(order);
		},
		refreshScanDetailTotals(order) {
			this.scanDetail = {
				...this.scanDetail,
				total_roll: order.total_roll ?? 0,
				total_weight: getOrderDisplayWeight(order),
			};
		},
		applyScanDetail(scanCode, order, scanType) {
			const fromResponse = buildScanDetailFromOrderResponse(order);
			if (fromResponse) {
				const context = findScanContext(order.item_data, scanCode);
				if (context) {
					fromResponse.weight = getFineCodeDisplayWeight(context.fineCode);
				}
				this.scanDetail = fromResponse;
				if (scanType !== 2) this.lastScanCode = scanCode;
				else if (this.lastScanCode === scanCode) this.lastScanCode = '';
				return;
			}
			const context = findScanContext(order.item_data, scanCode);
			if (context) {
				this.scanDetail = buildScanDetailFromContext(context, order);
				this.lastScanCode = scanCode;
				return;
			}
			if (scanType === 2 && this.lastScanCode === scanCode) {
				this.scanDetail = {
					...getEmptyScanDetail(),
					total_roll: order.total_roll ?? 0,
					total_weight: getOrderDisplayWeight(order),
				};
				this.lastScanCode = '';
				return;
			}
			this.refreshScanDetailTotals(order);
		},
		handleScan() {
			const code = (this.QRBarCode || '').trim();
			if (!this.canScan || !this.orderId) {
				this.showError('请先提交保存后再扫码');
				this.QRBarCode = '';
				return;
			}
			if (!code) {
				this.QRBarCode = '';
				return;
			}
			const scanType = this.BarCodeDelStatus ? 2 : 1;
			this.doScanUpdate(code, scanType);
		},
		BarCodeDelChange(e) {
			this.BarCodeDelStatus = (e.detail.value || []).length > 0;
		},
		/** 扫码新增/删除细码，统一走 scanUpdate 接口 */
		doScanUpdate(scanCode, scanType, options = {}) {
			const { refreshFineCodes = false } = options;
			uni.showLoading({ title: scanType === 2 ? '删除中...' : '处理中...' });
			return this.$u.api.gfmOtherDeliveryOrder.scanUpdate(buildScanUpdateParams({
				id: this.orderId,
				scanCode,
				scanType,
				groupKeys: this.scanGroupKeys,
				detail: this.scanDetail,
			}))
				.then((detail) => {
					uni.hideLoading();
					const order = normalizeOrder(detail);
					this.form.item_data = order.item_data;
					this.auditStatus = order.audit_status;
					this.applyScanDetail(scanCode, order, scanType);
					if (refreshFineCodes) {
						const row = order.item_data.find((i) => (i.group_key || String(i.id)) === this.currentGroupKey);
						this.currentFineCodes = row ? [...row.fine_codes] : [];
					}
					this.BillDataMessage = scanType === 2 ? '删除成功' : '扫描成功';
					this.QRBarCode = '';
					if (scanType === 2) this.showSuccess('删除成功');
					else util.playSuccessAudio();
				})
				.catch((e) => {
					uni.hideLoading();
					this.showError(e.message || (scanType === 2 ? '删除失败' : '扫码失败'));
					this.QRBarCode = '';
				});
		},
		openFabricInfo(row) {
			this.currentFabricInfo = { ...row };
			this.fabricInfoShow = true;
		},
		openFineCode(row) {
			this.currentGroupKey = row.group_key || String(row.id);
			this.currentFineCodes = [...(row.fine_codes || [])];
			this.fineCodeShow = true;
		},
		onDeleteFineCode(fineCode) {
			if (this.isReadonly || !this.canScan) return;
			const scanCode = getFineCodeScanCode(fineCode);
			if (!scanCode) {
				this.showError('该细码缺少条码，无法删除');
				return;
			}
			uni.showModal({
				title: '提示',
				content: `确认删除细码 ${scanCode}？`,
				success: (res) => {
					if (!res.confirm) return;
					this.doScanUpdate(scanCode, 2, { refreshFineCodes: true });
				},
			});
		},
		handleStatusAction(action) {
			confirmOrderStatusAction(this, {
				orderId: this.orderId,
				action,
				onSuccess: () => this.$u.api.gfmOtherDeliveryOrder.detail({ id: this.orderId })
					.then((detail) => {
						uni.hideLoading();
						const order = normalizeOrder(detail);
						if (!order) return;
						this.applyOrder(order);
						this.syncCanScanFromStatus(order.audit_status);
						this.showSuccess('操作成功');
					}),
			});
		},
		showError(message) {
			util.playErrorAudio();
			uni.showModal({ title: '提示', content: message, showCancel: false });
		},
		showSuccess(message) {
			util.playSuccessAudio();
			uni.showToast({ title: message, icon: 'success' });
		},
		getBillTypeName() {
			return this.billTypeName;
		},
	},
};