public without sharing class LoanerApplicationFlowController {
    // 基础Url
    public String baseUrl { get; private set; }
    // 样机借出申请ID
    public String laId { get; private set; }
    public loaner_application__c la { get; private set; }
    /* 画面步骤
     * 下架:StockDown
     *
     */
    public String step { get; private set; }
    // 明细Bean
    public List<DataLineBean> dataLines { get; set; }
    // 明细行数
    public Integer getDatalineSize() {
        return dataLines == null ? 0 : dataLines.size();
    }

    public LoanerApplicationFlowController() {
        laId = System.currentPageReference().getParameters().get('id');
        step = System.currentPageReference().getParameters().get('step');
    }

    public PageReference init() {
        // 基础Url
        baseUrl = URL.getSalesforceBaseUrl().toExternalForm();
        String path = URL.getCurrentRequestUrl().getPath();
        if (path.indexOf('/apex') > 0) {
            baseUrl += path.substring(0,path.indexOf('/apex'));
        } else if (path.indexOf('production/') > 0) {
            baseUrl += '/production';
        }
        // 明细Bean
        dataLines = new List<DataLineBean>();

        if (String.isBlank(laId) == true) {
            return null;
        }
        if (String.isBlank(step) == true) {
            return null;
        }
        // 样机借出申请取得
        List<loaner_application__c> laList = [select Id,Status__c from loaner_application__c where Id = :laId];
        if (laList.size() == 0) {
            return null;
        }
        la = laList[0];
        // 样机借出申请明细取得
        String sql_select = 'select Id, SerialNumber__c, Internal_Asset_number__c, OTCODE__c, ECCode__c ';
        String sql_where = ' where loaner_application__c = :laId ';
        if (step == 'StockDown') {
            sql_where += ' and RAESD_Status__c = \'已出库指示\'';
        } else {
            return null;
        }
        String sql_full = sql_select + ' from loaner_application_detail__c ' + sql_where;

        List<loaner_application_detail__c> lads = Database.query(sql_full);
        if (lads.size() == 0) {
            return null;
        }
        // 明细Bean作成
        Integer cnt = 0;
        for (loaner_application_detail__c lad : lads) {
            cnt += 1;
            DataLineBean dataLine = new DataLineBean(cnt, lad);
            dataLines.add(dataLine);
        }

        return null;
    }

    public PageReference saveBtn() {
        // 根据step更新样机借出申请明细状态
        List<loaner_application_detail__c> updList = new List<loaner_application_detail__c>();
        for (DataLineBean dataLine : dataLines) {
            if (dataLine.checkFlag == true) {
                loaner_application_detail__c lad = dataLine.lad;
                if (step == 'StockDown') {
                    lad.StockDown__c = true;
                    lad.StockDown_Date__c = Date.today();
                    lad.RAESD_Status__c = '已下架';
                }
                updList.add(lad);
            }
        }

        Savepoint sp = Database.setSavepoint();
        try {
            if (updList.size() > 0) update updList;

            /*List<loaner_application_detail__c> checkList = [select id,
                                                                   loaner_application__c,
                                                                   loaner_application__r.Detail_count__c,
                                                                   loaner_application__r.Status__c
                                                              from loaner_application_detail__c
                                                             where loaner_application__c = :laId
                                                               and StockDown__c = true];
            if (checkList.size() > 0) {
                loaner_application_detail__c check = checkList[0];
                if (check.loaner_application__r.Detail_count__c == checkList.size() &&
                    check.loaner_application__r.Status__c == '已出库指示') {
                    loaner_application__c upd = new loaner_application__c();
                    upd.id = check.loaner_application__c;
                    upd.Status__c = '已下架';
                    update upd;
                }
            }*/
            if(la.Status__c != '完毕'){
                la.Status__c =  LoanerOrderState.getOrderStater(la.Id);
                update la;
            }
            // 返回样机借出申请画面
            String url = baseUrl;
            url += '\\' + laId;
            return new Pagereference(url);
        } catch (Exception ex) {
            Database.rollback(sp);
            ApexPages.addmessage(new ApexPages.message(ApexPages.severity.Error, ex.getMessage() + ' | Line:' + ex.getLineNumber()));
        }

        return null;
    }

    public PageReference cancelBtn() {
        // 返回样机借出申请画面
        String url = baseUrl;
        url += '\\' + laId;
        return new Pagereference(url);
    }

    public class DataLineBean {
        // 是否选择
        public boolean checkFlag { get; set; }
        // 行号
        public Integer lineNo { get; private set; }
        // 样机借出申请明细
        public loaner_application_detail__c lad { get; set; }

        public DataLineBean(Integer in_no, loaner_application_detail__c in_lad) {
            checkFlag = false;
            lineNo = in_no;
            lad = in_lad;
        }
    }
}