//
//  pdscli.m
//  Skeleton of CLI parsing for a PDS implementation
//

// https://developer.apple.com/documentation/foundation/processinfo

#import <Foundation/Foundation.h>


@interface PDSCLIController : NSObject

- (NSInteger)runWithArguments:(NSArray<NSString *> *)arguments;
- (void)printHelp;

@end

@implementation PDSCLIController

- (NSInteger)runWithArguments:(NSArray<NSString *> *)arguments {
    if(arguments.count == 0) {
        [self printHelp];
        return 1;
    }
    return 0;
}

- (void)printHelp {
    printf("No arguments given.\n");
}

@end


int main(int argc, const char * argv[]) {
    @autoreleasepool {
        NSArray<NSString *> *arguments = [[NSProcessInfo processInfo] arguments];
        NSDictionary<NSString *, NSString *> *environment = [[NSProcessInfo processInfo] environment];
        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
        NSInteger port = [defaults integerForKey:@"port"];
        NSString *dataDirectory = [defaults stringForKey:@"data-dir"];
        BOOL isVerboseLogging = [arguments containsObject:@"-verbose"]; // doesn't work for -verbose NO
        BOOL isHelp = [arguments containsObject:@"-help"];
        NSLog(@"%d", (int)port);
        NSLog(@"%@", dataDirectory);
        NSLog(@"%@", isVerboseLogging ? @"YES" : @"NO");
        NSLog(@"%@", isHelp ? @"YES" : @"NO");
        
        NSString *shell = environment[@"SHELL"];
        NSLog(@"%@", shell);
        NSArray *commandlineArguments = [arguments subarrayWithRange:NSMakeRange(1, arguments.count - 1)];
        PDSCLIController *cli = [[PDSCLIController alloc] init];
        NSInteger exitCode = [cli runWithArguments:commandlineArguments];
        
        return (int)exitCode;
    }
    return EXIT_SUCCESS;
}