import e from"pbf";import t from"@mapbox/point-geometry";import{VectorTileLayer as r,VectorTileFeature as i}from"@mapbox/vector-tile";class n extends i{constructor(t,r){super(new e,0,r,[],[]),this.feature=t,this.type=t.type,this.properties=t.tags?t.tags:{},"id"in t&&("string"==typeof t.id?this.id=parseInt(t.id,10):"number"!=typeof t.id||isNaN(t.id)||(this.id=t.id))}loadGeometry(){const e=[],r=1===this.feature.type?[this.feature.geometry]:this.feature.geometry;for(const i of r){const r=[];for(const e of i)r.push(new t(e[0],e[1]));e.push(r)}return e}}class o extends r{constructor(t,r){super(new e),this.layers={_geojsonTileLayer:this},this.name="_geojsonTileLayer",this.version=r?r.version:1,this.extent=r?r.extent:4096,this.length=t.length,this.features=t}feature(e){return new n(this.features[e],this.extent)}}function s(t){const r=new e;return function(e,t){for(const r in e.layers)t.writeMessage(3,f,e.layers[r])}(t,r),r.finish()}function a(e,t){const r={};for(const i in e)r[i]=new o(e[i].features,t),r[i].name=i,r[i].version=t?t.version:1,r[i].extent=t?t.extent:4096;return s({layers:r})}function f(e,t){t.writeVarintField(15,e.version||1),t.writeStringField(1,e.name||""),t.writeVarintField(5,e.extent||4096);const r={keys:[],values:[],keycache:{},valuecache:{}};for(let i=0;i<e.length;i++)r.feature=e.feature(i),t.writeMessage(2,u,r);const i=r.keys;for(const e of i)t.writeStringField(3,e);const n=r.values;for(const e of n)t.writeMessage(4,y,e)}function u(e,t){if(!e.feature)return;const r=e.feature;void 0!==r.id&&t.writeVarintField(1,r.id),t.writeMessage(2,c,e),t.writeVarintField(3,r.type),t.writeMessage(4,p,r)}function c(e,t){for(const r in e.feature?.properties){let i=e.feature.properties[r],n=e.keycache[r];if(null===i)continue;void 0===n&&(e.keys.push(r),n=e.keys.length-1,e.keycache[r]=n),t.writeVarint(n),"string"!=typeof i&&"boolean"!=typeof i&&"number"!=typeof i&&(i=JSON.stringify(i));const o=typeof i+":"+i;let s=e.valuecache[o];void 0===s&&(e.values.push(i),s=e.values.length-1,e.valuecache[o]=s),t.writeVarint(s)}}function l(e,t){return(t<<3)+(7&e)}function h(e){return e<<1^e>>31}function p(e,t){const r=e.loadGeometry(),i=e.type;let n=0,o=0;for(const s of r){let r=1;1===i&&(r=s.length),t.writeVarint(l(1,r));const a=3===i?s.length-1:s.length;for(let e=0;e<a;e++){1===e&&1!==i&&t.writeVarint(l(2,a-1));const r=s[e].x-n,f=s[e].y-o;t.writeVarint(h(r)),t.writeVarint(h(f)),n+=r,o+=f}3===e.type&&t.writeVarint(l(7,1))}}function y(e,t){const r=typeof e;"string"===r?t.writeStringField(1,e):"boolean"===r?t.writeBooleanField(7,e):"number"===r&&(e%1!=0?t.writeDoubleField(3,e):e<0?t.writeSVarintField(6,e):t.writeVarintField(5,e))}export{o as GeoJSONWrapper,a as fromGeojsonVt,s as fromVectorTileJs};
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