expo-osm-sdk/build/types/index.js

OpenStreetMap component for React Native with Expo

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.DEFAULT_REGION = exports.DEFAULT_COORDINATE = exports.DEFAULT_CONFIG = exports.TILE_CONFIGS = void 0;
exports.isVectorTileUrl = isVectorTileUrl;
exports.validateStyleUrl = validateStyleUrl;
exports.getDefaultTileConfig = getDefaultTileConfig;
/**
 * Alternative tile configurations for different use cases
 */
exports.TILE_CONFIGS = {
    openMapTiles: {
        name: 'Carto Voyager',
        description: 'High-quality production vector tiles with professional styling and global coverage. Uses MapLibre GL for hardware acceleration.',
        isVector: true,
        styleUrl: 'https://basemaps.cartocdn.com/gl/voyager-gl-style/style.json',
        attribution: '© OpenStreetMap contributors, © CARTO'
    },
    openStreetMap: {
        name: 'OpenStreetMap Raster',
        description: 'Standard OpenStreetMap raster tiles - reliable and free.',
        isVector: false,
        tileUrl: 'https://tile.openstreetmap.org/{z}/{x}/{y}.png',
        attribution: '© OpenStreetMap contributors'
    },
    openTopoMap: {
        name: 'OpenTopoMap',
        description: 'Topographic map based on OpenStreetMap data with contour lines and elevation.',
        isVector: false,
        tileUrl: 'https://tile.opentopomap.org/{z}/{x}/{y}.png',
        attribution: '© OpenStreetMap contributors, SRTM | Style: © OpenTopoMap'
    },
    humanitarian: {
        name: 'Humanitarian',
        description: 'Humanitarian OpenStreetMap style optimized for crisis response.',
        isVector: false,
        tileUrl: 'https://tile-{s}.openstreetmap.fr/hot/{z}/{x}/{y}.png',
        attribution: '© OpenStreetMap contributors, Tiles courtesy of Humanitarian OpenStreetMap Team'
    }
};
/**
 * Utility function to detect if a URL is a vector tile style URL
 */
function isVectorTileUrl(url) {
    if (!url || typeof url !== 'string') {
        return false;
    }
    // Check for common vector style URL patterns
    return (url.includes('.json') ||
        url.includes('style.json') ||
        url.includes('/styles/') ||
        (url.includes('api.') && url.includes('style')));
}
/**
 * Validates a vector tile style URL
 */
function validateStyleUrl(url) {
    if (!url) {
        throw new Error('Style URL cannot be empty');
    }
    try {
        const parsedUrl = new URL(url);
        if (parsedUrl.protocol !== 'https:') {
            throw new Error('Style URL must use HTTPS');
        }
    }
    catch (error) {
        throw new Error('Invalid URL format');
    }
}
/**
 * Gets a default tile configuration by name
 */
function getDefaultTileConfig(configName) {
    if (configName && exports.TILE_CONFIGS[configName]) {
        return exports.TILE_CONFIGS[configName];
    }
    return exports.TILE_CONFIGS.openStreetMap;
}
/**
 * Default configuration for the map - Using Carto vector tiles
 */
exports.DEFAULT_CONFIG = {
    tileServerUrl: exports.TILE_CONFIGS.openMapTiles.styleUrl, // For backward compatibility
    styleUrl: exports.TILE_CONFIGS.openMapTiles.styleUrl, // Vector style  
    maxZoom: 22,
    minZoom: 1,
    attribution: exports.TILE_CONFIGS.openMapTiles.attribution,
    isVectorTiles: true,
    initialCenter: { latitude: 0, longitude: 0 },
    initialZoom: 10
};
/**
 * Default coordinates (centered on world)
 */
exports.DEFAULT_COORDINATE = {
    latitude: 0,
    longitude: 0
};
/**
 * Default map region
 */
exports.DEFAULT_REGION = {
    latitude: 0,
    longitude: 0,
    latitudeDelta: 90,
    longitudeDelta: 180
};
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