public with sharing class QLMAttachmentPreviewController {
    // //附件的parentId
    public String parentId { get; private set; }
//    //附件的Id
    public String attachId { get; private set; }
    //所有附件
    public list<ContentVersion> attachMentList { get; private set; }

    public List<ContentVersionResponse> contentVerResList { get; private set; } // 阿里云迁移 by DTT-亚楠 20240107
    public String baseUrl { get; private set; } // 阿里云迁移 by DTT-亚楠 20240107

    //所有超过12Murl
    public list<Over12MInfo> Over12MInfoList { get; set; }


    //构造bean类
    public AttachmentInfo attachmentInfo  {get; set;}

    public String gethtmlvalue() {
        this.parentId = ApexPages.currentPage().getParameters().get('parentId');
        this.attachId = ApexPages.currentPage().getParameters().get('Id');
        System.debug('123456--=--=--=-=--=' + attachId);
        try {
            // return [SELECT Id, Body, ParentId FROM Attachment
            //        where Id = :parentId ].body.tostring();
            // String Att = [SELECT Id, Body, ParentId FROM Attachment
            //               where Id = :attachId ].body.tostring();
            // lwc改造
            String Att = [SELECT Id,Title,VersionData, ContentDocumentId
                                         FROM ContentVersion
                                         WHERE id = :attachId].VersionData.toString();
            System.debug('------123456----' + Att);
            return Att;
        } catch (exception e) {
            return '';
        }
    }

    public void init() {
        //获取页面参数
        this.baseUrl = URL.getOrgDomainURL().toExternalForm();
        this.parentId = ApexPages.currentPage().getParameters().get('parentId');
        this.attachId = ApexPages.currentPage().getParameters().get('Id');
        System.debug('this.parentId' + this.parentId);
        System.debug('this.attachId' + this.attachId);
        Over12MInfoList = new List<Over12MInfo>();
        this.contentVerResList = new List<ContentVersionResponse>(); // 阿里云迁移 by DTT-亚楠 20240107
        try {
            //判断url是否有id
            if (String.isNotBlank(this.parentId)) {
                // this.attachMentList = [SELECT id, parentId, Name, Body, ContentType
                //                        from Attachment where parentId = :parentId];
                // lwc 修改
                // 查询 ContentDocumentLink 对象
                List<ContentDocumentLink> cdlList = [SELECT ContentDocumentId
                                                     FROM ContentDocumentLink
                                                     WHERE LinkedEntityId = :parentId];

                // 阿里云迁移 by DTT-亚楠 20240107 start
                // 遍历 ContentDocumentLink 对象列表
                // for (ContentDocumentLink cdl : cdlList) {
                //     // 查询 ContentVersion 对象
                //     this.attachMentList = [SELECT Id,Title,VersionData, ContentDocumentId
                //                          FROM ContentVersion
                //                          WHERE ContentDocumentId = :cdl.ContentDocumentId];
                // }

                List<String> cdIdList = new List<String>();
                for (ContentDocumentLink cdl : cdlList) {
                    cdIdList.add(cdl.ContentDocumentId);
                }
                this.attachMentList = [SELECT Id,Title,VersionData, ContentDocumentId, Description
                                        FROM ContentVersion
                                        WHERE ContentDocumentId IN :cdIdList];

                // attachmentInfo = new AttachmentInfo(this.attachMentList);
                for (ContentVersion contentVersion : this.attachMentList) {
                    ContentVersionResponse contentVerRes = new ContentVersionResponse();
                    contentVerRes.Id = contentVersion.Id;
                    contentVerRes.contDocumentId = contentVersion.ContentDocumentId;
                    contentVerRes.Title = String.escapeSingleQuotes(contentVersion.Title);
                    List<String> descriptionList = new List<String>();
                    if (String.isNotBlank(contentVersion.Description)) {
                        descriptionList = contentVersion.Description.split(';');
                    }
                    if (descriptionList.size() > 0 && contentVersion.Description.contains(';')) {
                        contentVerRes.infoId = descriptionList[0];
                        contentVerRes.infoType = descriptionList[1];
                        contentVerRes.subInfoType = descriptionList[2];
                        contentVerRes.updateDate = String.isNotBlank(descriptionList[3]) ? Date.valueOf(descriptionList[3]) : null;
                    }
                    this.contentVerResList.add(contentVerRes);
                }
                attachmentInfo = new AttachmentInfo(this.attachMentList, this.contentVerResList);
                attachmentInfo.sort();
                // 阿里云迁移 by DTT-亚楠 20240107 end

                List<Tender_information__c> QLMattachMentList = [SELECT id, ProjectId__c, InfoType__c,
                                            Overstep_12M_infofile__c,
                                            File_Surpass_12M__c from Tender_information__c
                                            where Id = :parentId];
                if (QLMattachMentList.size() > 0) {
                    System.debug('QLMattachMentList:' + QLMattachMentList);
                    Integer i = 1;
                    // for (Tender_information__c Over12M : QLMattachMentList) {
                    for (String urlStr : QLMattachMentList[0].Overstep_12M_infofile__c.split(',')) {
                        // this.url = Over12M.Overstep_12M_infofile__c;
                        System.debug('urlStr:' + urlStr);
                        urlStr = urlStr.replaceAll('http://', 'https://');
                        over12MInfo over12MFile = new Over12MInfo('文件' + i, urlStr);
                        Over12MInfoList.add(over12MFile);
                        System.debug('12345678Over12MInfoList:' + Over12MInfoList);
                        i++;
                    }
                }
            }
        } catch (Exception ex) {
            ApexPages.addMessages(ex);
        }
    }

    public class ContentVersionResponse {
        // 阿里云迁移 by DTT-亚楠 20240107 star
        public String Id {get; set;}
        public String contDocumentId {get; set;}
        public String Title {get; set;}
        public String infoId {get; set;}
        public String infoType {get; set;}
        public String subInfoType {get; set;}
        public Date updateDate {get; set;}
        public ContentVersionResponse(String Id, String contDocumentId, String Title, String infoId, String infoType, String subInfoType, Date updateDate) {
            this.Id = Id;
            this.contDocumentId = contDocumentId;
            this.title = Title;
            this.infoId = infoId;
            this.infoType = infoType;
            this.subInfoType = subInfoType;
            this.updateDate = updateDate;
        }

        public ContentVersionResponse(){}
        // 阿里云迁移 by DTT-亚楠 20240107 end 
    }

    public class AttachmentInfo implements Comparable{
        // lighting 附件改造 start
        public list<ContentVersion> attachMentList { get; set; }
        public ContentVersionResponse contentVerRes { get; set; }
        public List<ContentVersionResponse> contentVerResList { get; set; } // 阿里云迁移 by DTT-亚楠 20240107

        public AttachmentInfo(list<ContentVersion> attachMentList) {
            this.attachMentList = attachMentList;
            for (ContentVersion tempatt : attachMentList) {
               tempatt.Title =  String.escapeSingleQuotes(tempatt.Title);
            }
        }

        public AttachmentInfo(ContentVersionResponse contentVerRes) {
            this.contentVerRes = contentVerRes;
        }
        // lighting 附件改造 end

        // 阿里云迁移 by DTT-亚楠 20240107 start
        public AttachmentInfo(list<ContentVersion> attachMentList, List<ContentVersionResponse> contentVerResList) {
            this.attachMentList = attachMentList;
            this.contentVerResList = contentVerResList;
        }

        public Integer compareTo(Object compareToPB) {
            AttachmentInfo compareToEmp = (AttachmentInfo)compareToPB;
     
            if (this.contentVerRes.updateDate != null && compareToEmp.contentVerRes.updateDate == null) {

                return -1; 
            } else if (this.contentVerRes.updateDate == null && compareToEmp.contentVerRes.updateDate != null) {

                return 1; 
            } else if (this.contentVerRes.updateDate != null && compareToEmp.contentVerRes.updateDate != null) {

                return this.contentVerRes.updateDate < compareToEmp.contentVerRes.updateDate ? 1 : 0; 
            } else {

                return 0; 
            }
        }

         public void sort() {
            List<AttachmentInfo> dataInfoSorts = new List<AttachmentInfo>();
            for (ContentVersionResponse contentVerRes : contentVerResList) {
                dataInfoSorts.add(new AttachmentInfo(contentVerRes));
            }
    
            dataInfoSorts.sort();
    
            for (Integer i = 0; i < contentVerResList.size(); i++) {
                contentVerResList[i] = dataInfoSorts[i].contentVerRes;
            }
        }
        // 阿里云迁移 by DTT-亚楠 20240107 end
    }
    public class Over12MInfo {
        public string name { get; set; }
        public string url { get; set; }
        public Over12MInfo(string name, string url) {
            this.name = name;
            this.url = url;
        }
    }
}