//
//  main.m
//  移除无用词条
//
//  Created by user on 2021/12/24.
//

#import <Foundation/Foundation.h>

void findFilePath(NSMutableArray *filePath, NSString *path) {
    NSFileManager *fm = [NSFileManager defaultManager];
    NSError *error = nil;
    NSArray *directroyArray = [fm contentsOfDirectoryAtPath:path error:&error];
    if (error) {
        NSLog(@"%@", error);
        return;
    }
    for (NSString *fileName in directroyArray) {
        BOOL isDirectroy = NO;
        NSString *fullPath = [path stringByAppendingPathComponent:fileName];
        if ([fm fileExistsAtPath:fullPath isDirectory:&isDirectroy]) {
            if (isDirectroy) {
                if ([fileName isEqualToString:@"Pods"]) {
                    continue;
                }
                findFilePath(filePath, fullPath);
            } else {
                if ([fullPath hasSuffix:@".swift"] || [fullPath hasSuffix:@".m"]) {
                    [filePath addObject:fullPath];
                }
            }
        }
    }
}


void lcy_searchFileWithKeys(NSMutableArray * allKeys, NSMutableArray * allContents, NSMutableArray *usedKeys, NSMutableArray *usedContents, NSMutableArray *filesPath) {
    
    for (NSString *path in filesPath) {
        NSString *content = [[NSString alloc] initWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
        NSArray *lines = [content componentsSeparatedByString:@"\n"];
        for (NSString *line in lines) {
            
            for (NSInteger i = 0; i < allKeys.count; i ++) {
                NSString *key = allKeys[i];
                NSString *content = allContents[i];
                
                if ([line containsString:key]) {
                    [allKeys removeObjectAtIndex:i];
                    [allContents removeObjectAtIndex:i];
                    
                    [usedKeys addObject:key];
                    [usedContents addObject:content];
                    break;
                }
                
            }
        }
    }
}

void findUnuseKey(void) {
    NSString *filePath = @"/Users/.../translations/en.lproj/Localizable.strings";
    NSError *error;
    NSString *content = [[NSString alloc] initWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:&error];
    if (error) {
        NSLog(@"%@", error);
        return;
    }
    // 获取key
    NSArray *allLines = [content componentsSeparatedByString:@"\n"];
    NSMutableArray *allKeys = [NSMutableArray array];
    NSMutableArray *allContents = [NSMutableArray array];
    for (NSString *line in allLines) {
        
        NSRange range = [line rangeOfString:@"\" = \""];
        if (range.location == NSNotFound) {
            continue;
        }
        NSString *first = [line componentsSeparatedByString:@"\" = \""].firstObject;
        NSString *last = [line componentsSeparatedByString:@"\" = \""].lastObject;
        [allKeys addObject:[NSString stringWithFormat:@"%@\"", first]];
        [allContents addObject:[last substringToIndex:last.length - 2]];
    }

    NSMutableArray *filesPath = [NSMutableArray array];
    // 获取所有文件路径
    NSString *projectRoot = @"项目路径xcodeproj所在文件夹位置";
    
    findFilePath(filesPath, projectRoot);
    
    NSMutableArray *usedKeys = [NSMutableArray array];
    NSMutableArray *usedContents = [NSMutableArray array];

    // 感觉不太准，多调两遍
    lcy_searchFileWithKeys(allKeys, allContents, usedKeys, usedContents, filesPath);
    
    lcy_searchFileWithKeys(allKeys, allContents, usedKeys, usedContents, filesPath);

    // 未使用的
    NSMutableString *unusedKeyString = [NSMutableString string];
    for (NSInteger i = 0; i < allKeys.count; i ++) {
        NSString *key = allKeys[i];
        NSString *content = allContents[i];
        unusedKeyString = [[NSString stringWithFormat:@"%@\n\n%@ = \"%@\"", unusedKeyString, key, content] mutableCopy];
    }
    [unusedKeyString writeToFile:@"/Users/name/Desktop/haha/languageUnused.txt" atomically:YES];

    // 用到的
    NSMutableString *finalString = [NSMutableString string];
    for (NSInteger i = 0; i < usedKeys.count; i ++) {
        NSString *key = usedKeys[i];
        NSString *content = usedContents[i];
        
        finalString = [[NSString stringWithFormat:@"%@\n\n%@ = \"%@\"", finalString, key, content] mutableCopy];
    }
    
    
    [finalString writeToFile:@"/Users/name/Desktop/haha/language.txt" atomically:YES];
    NSLog(@"%@", finalString);
}

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        // 找到无用的key
        findUnuseKey();
    }
    return 0;
}