gistfile1.m

//
//  main.m
//  fccRadioListParser
//
//  Created by Zachry Thayer on 11/14/11.
//  Copyright (c) 2011 Zachry Thayer. All rights reserved.
//

#import <Foundation/Foundation.h>

#import "JSONKit.h"

#define kFCCStationsFile @"FCCStations.txt"
#define kCountryCodesToNamesFile @"countryCodesToNames.json"
#define kStateCodesToNamesFile @"stateCodesToNames.json"


enum FCCIndexes{
    Callsign = 1,
    Frequency,
    Service,
    Channel,
    DirectionalAntennaDAorNonDirectionalND,
    NotUsedforFM,
    FMStationClass,
    NotUsedforFM2,
    FMStatus,
    City,
    State,
    Country,
    FileNumberApplicationConstructionPermitorLicenseorDocketNumberRulemaking,
    EffectiveRadiatedPower__horizontallypolarizedmaximum,
    EffectiveRadiatedPower__verticallypolarizedmaximum,
    AntennaHeightAboveAverageTerrainHAAT__horizontalpolarization,
    AntennaHeightAboveAverageTerrainHAAT__verticalpolarization,
    FacilityIDNumberuniquetoeachstation,
    NorthOrSouthLatitude,
    DegreesLatitude,
    MinutesLatitude,
    SecondsLatitude,
    WestOrEastLongitude,
    DegreesLongitude,
    MinutesLongitude,
    SecondsLongitude,
    LicenseeorPermittee,
    Kilometersdistantradiusfromenteredlatitude,longitude,
    MilesDistantRadius,
    Azimuth,
    AntennaRadiationCenterAboveMeanSeaLevelRCAMSL_HorizontallyPolarized_meters,
    AntennaRadiationCenterAboveMeanSeaLevelRCAMSL_VerticallyPolarized_meters,
    DirectionalAntennaIDNumber,
    DirectionalAntennaPatternRotation,
    AntennaStructureRegistrationNumber,
    ApplicationID,
    FCCComponentsCount
};


double decimalDegrees(double degrees, double minutes, double seconds);
double decimalDegrees(double degrees, double minutes, double seconds){
    return  degrees + minutes/60.f + seconds/3600.f;
}

NSDictionary *countryCodesToNames = nil;
NSDictionary *stateCodesToNames = nil;

NSString *getCountryNameFromCode(NSString* countryCode);
NSString *getCountryNameFromCode(NSString* countryCode){
    
    // if first lookup load DB
    if (!countryCodesToNames) {
        NSData *countryCodesToNamesData = [NSData dataWithContentsOfFile:kCountryCodesToNamesFile];
        countryCodesToNames = [countryCodesToNamesData objectFromJSONData];
    }

    return [countryCodesToNames objectForKey:countryCode];
}

NSString *getStateNameFromCode(NSString* stateCode, NSString *country);
NSString *getStateNameFromCode(NSString* stateCode, NSString *country){
    
    // if first lookup load DB
    if (!stateCodesToNames) {
        NSData *stateCodesToNamesData = [NSData dataWithContentsOfFile:kStateCodesToNamesFile];
        stateCodesToNames = [stateCodesToNamesData objectFromJSONData];
    }
    
    NSDictionary *thisCountry = [stateCodesToNames objectForKey:country];//Must know what country to look in.
    
    if (!thisCountry) {
        return nil;
    }
    
    return [thisCountry objectForKey:stateCode];
}


void cleanup();
void cleanup(){
    
    if (countryCodesToNames) {
        countryCodesToNames = nil;//let arc cleanup
    }
    
}

int main (int argc, const char * argv[])
{

    @autoreleasepool {
        
        NSString *fccStationsText = [NSString stringWithContentsOfFile:kFCCStationsFile encoding:NSUTF8StringEncoding error:nil];
        
        if (!fccStationsText) {
            return -1;//Fail
        }
        
        NSMutableDictionary *fccStations = [NSMutableDictionary dictionary];
                
        [fccStationsText enumerateLinesUsingBlock:^(NSString *line, BOOL *stop){
                        
            NSString *trimmedLine = [line stringByReplacingOccurrencesOfString:@" " withString:@""];
            
            NSArray *lineComponents = [trimmedLine componentsSeparatedByString:@"|"];
            
            if (!lineComponents ){//&& [lineComponents count] == FCCComponentsCount) {
                return;//Skip to next line, this one is invalid
            }
            
            NSString *thisCountryCode = [lineComponents objectAtIndex:Country];
            NSString *thisCountryName = getCountryNameFromCode(thisCountryCode);
            if (!thisCountryName) {
                return;//Skip this country, it's not available.
            }
            NSString *thisStateCode = [lineComponents objectAtIndex:State];
            NSString *thisStateName = getStateNameFromCode(thisStateCode, thisCountryName);
            if (!thisStateName) {
                return;//Skip this state, it's not available.
            }
            
            
            NSMutableDictionary *thisCountry = [fccStations objectForKey:thisCountryName];
            if (!thisCountry) {
                //Setup Country if it doesn't exist
                thisCountry = [NSMutableDictionary dictionary];
                [thisCountry setObject:thisCountryCode forKey:@"Code"];
                [thisCountry setObject:[NSMutableDictionary dictionary] forKey:@"Regions"];
                
                [fccStations setObject:thisCountry forKey:thisStateName];
                
            }
            NSMutableDictionary *thisState = [[thisCountry objectForKey:@"Regions"] objectForKey:thisStateName];
            if (!thisState) {
                
                thisState = [NSMutableDictionary dictionary];
                [thisState setObject:thisStateCode forKey:@"Code"];
                [thisState setObject:[NSMutableDictionary dictionary] forKey:@"RadioStations"];
                
                [[thisCountry objectForKey:@"Regions"] setObject:thisState forKey:thisStateName];
                
            }
            
            NSMutableDictionary *thisRadioStations = [thisState objectForKey:@"RadioStations"];
            
            //Build station
            
            NSMutableDictionary *thisStation = [NSMutableDictionary dictionary];
            if (!thisStation) {
                return;//Skip this, bad allocation.
            }
            
            
            NSString *thisStationImageUrl = @"NULL";
            [thisStation setObject:thisStationImageUrl forKey:@"imageUrl"];
            
            NSMutableArray *thisRepeatorArray = [NSMutableArray array];
            NSMutableDictionary *thisRepeator = [NSMutableDictionary dictionary];
            
            NSString *thisFrequency = [lineComponents objectAtIndex:Frequency];
            [thisRepeator setObject:thisFrequency forKey:@"frequency"];
            
            double thisDegreesLatitude = [[lineComponents objectAtIndex:DegreesLongitude] doubleValue];
            double thisDegreesLongitude = [[lineComponents objectAtIndex:DegreesLatitude] doubleValue];
            
            double thisMinutesLatitude = [[lineComponents objectAtIndex:MinutesLatitude] doubleValue];
            double thisMinutesLongitude = [[lineComponents objectAtIndex:MinutesLongitude] doubleValue];
            
            double thisSecondsLatitude = [[lineComponents objectAtIndex:SecondsLatitude] doubleValue];
            double thisSecondsLongitude = [[lineComponents objectAtIndex:SecondsLongitude] doubleValue];

            NSNumber *thisLatitude = [NSNumber numberWithDouble:decimalDegrees(thisDegreesLatitude, thisMinutesLatitude, thisSecondsLatitude)];
            NSNumber *thisLongitude = [NSNumber numberWithDouble:decimalDegrees(thisDegreesLongitude, thisMinutesLongitude, thisMinutesLongitude)];
            
            [thisRepeator setObject:thisLatitude forKey:@"latitude"];
            [thisRepeator setObject:thisLongitude forKey:@"longitude"];

            [thisRepeatorArray addObject:thisRepeator];
            
            [thisStation setObject:thisRepeatorArray forKey:@"Repeators"];
            
            //Add station
            NSString *thisCallsign = [lineComponents objectAtIndex:Callsign];
            [thisRadioStations setObject:thisStation forKey:thisCallsign];
                                    
        }];
        
        [[fccStations JSONData] writeToFile:@"testOut.json" atomically:YES];
        
    }
    
    cleanup();
    
    return 0;
}