JSJP_Student/jiaPei/Modules/OtherModules/BDQuestionModule/BDQuestionModule.m

//
//  BDQuestionModule.m
//  jiaPei
//
//  Created by 张嵘 on 2022/7/28.
//  Copyright © 2022 JCZ. All rights reserved.
//

#import "BDQuestionModule.h"

static NSString *dbNameStr = @"question";
static NSString *dbTypeStr = @"db";
static NSString *questionTableNameStr = @"t_question";

@interface BDQuestionModule ()
@property (nonatomic, readwrite, strong) FMDatabaseQueue *databaseQueue;

@end

@implementation BDQuestionModule
static id rq_BDQuestionModule = nil;
#pragma mark -  init
+ (instancetype)sharedInstance {
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        rq_BDQuestionModule = [[self alloc] init];
    });
    return rq_BDQuestionModule;
}

- (instancetype)init {
    if (self = [super init]) {
        NSError *error;
        
        NSString *dbPath = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.%@",dbNameStr,dbTypeStr]];
        NSString *resourcePath = [[NSBundle mainBundle] pathForResource:dbNameStr ofType:dbTypeStr];
        

        if ([RQFileManager isPathExist:dbPath]) {
            self.databaseQueue = [FMDatabaseQueue databaseQueueWithPath:dbPath];
            NSLog(@"数据库path-----%@",dbPath);
            if ([self getQuestionVersion] >= [self getQuestionVersionWithResourcePath:resourcePath]) {
            } else {
                [[RQFileManager fileManager] removeItemAtPath:dbPath error:&error];
                [[RQFileManager fileManager] copyItemAtPath:resourcePath toPath:[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.%@",dbNameStr,dbTypeStr]] error:&error];
                self.databaseQueue = [FMDatabaseQueue databaseQueueWithPath:dbPath];
            }
        } else {
            [[RQFileManager fileManager] copyItemAtPath:resourcePath toPath:[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject] stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.%@",dbNameStr,dbTypeStr]] error:&error];
            self.databaseQueue = [FMDatabaseQueue databaseQueueWithPath:dbPath];
            NSLog(@"数据库path-----%@",dbPath);
        }
    }
    return self;
}

#pragma mark - PublicMethods
- (NSInteger)getQuestionVersion {
    __block NSInteger version = 0;
    if (_databaseQueue) {
        [_databaseQueue inDatabase:^(FMDatabase * _Nonnull db) {
            FMResultSet *resultSet;
            resultSet = [db executeQuery:@"SELECT version FROM t_version"];
            while ([resultSet next]) {
                version = [resultSet longForColumn:@"version"];
            }
        }];
    }
    return version;
}

- (NSInteger)getQuestionVersionWithResourcePath:(NSString *)resourcePath {
    __block NSInteger version = 0;
    [[FMDatabaseQueue databaseQueueWithPath:resourcePath] inDatabase:^(FMDatabase * _Nonnull db) {
        FMResultSet *resultSet;
        resultSet = [db executeQuery:@"SELECT version FROM t_version"];
        while ([resultSet next]) {
            version = [resultSet longForColumn:@"version"];
        }
    }];
    return version;
}

- (NSArray *)queryQuestionWithQueryStr:(NSString *)queryStr {
    NSMutableArray *arr = @[].mutableCopy;
    [_databaseQueue inDatabase:^(FMDatabase * _Nonnull db) {
//        NSString *sqlStr = [NSString stringWithFormat:@"ATTACH DATABASE '%@' AS jsjp_user_db",RQ_YDT_USER_Question_Module.dbPath];
//        bool success = [db executeStatements:sqlStr];
//        if(!success) {
//            NSLog(@"%@", db.lastErrorMessage);
//        }
        
        FMResultSet *resultSet = [db executeQuery:queryStr];
//        NSInteger num = 0;
        while ([resultSet next]) {
            RQBDQuestionModel *bdQuestionModel = [RQBDQuestionModel bdQuestionModelWithFMResultSet:resultSet];
//            ydtQuestionModel.num = num;
            [arr addObject:bdQuestionModel];
//            num ++;
        }
        [resultSet close];
    }];
    return arr.copy;
}


@end