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250 |
1×
156×
156×
156×
156×
156×
| /*global angular*/
angular.module('webmapp')
.factory('MBTiles', function MBTiles(
$q
) {
var mbtiles = {},
isAndroid = window.cordova && window.cordova.platformId === 'android';
var openCordovaDB = function (dbPath) {
var basename, pathParts, additionalMapPath;
if (isAndroid) {
basename = dbPath;
} else {
pathParts = dbPath.split('/');
additionalMapPath = !!localStorage.$wm_mhildId ? 'map_' + localStorage.$wm_mhildId + '/' : 'map/';
// TODO: instead of .pop(), check the base path and preserve subfolder
basename = 'NoCloud/' + additionalMapPath + pathParts.pop();
}
return sqlitePlugin.openDatabase({
name: basename,
iosDatabaseLocation: 'Library'
});
};
mbtiles.join = function (baseMbtiles, importMbtiles, progressFunction) {
var defer = $q.defer();
var db = {};
var attachStmt = "ATTACH DATABASE ? AS importDb;",
detachStmt = "DETACH DATABASE importDb;",
mapCountStmt = "SELECT COUNT(*) AS count FROM map;",
mapInsertStmt = "INSERT OR IGNORE INTO map (tile_id, zoom_level, tile_column, tile_row) SELECT tile_id, zoom_level, tile_column, tile_row FROM importDb.map;",
imagesCountStmt = "SELECT COUNT(*) AS count FROM images;",
imagesInsertStmt = "INSERT OR IGNORE INTO images (tile_id, tile_data) SELECT tile_id, tile_data FROM importDb.images;",
metaStmt = "SELECT value FROM metadata WHERE name = ?;",
metaUpdateStmt = "UPDATE metadata SET value = ? WHERE name = ?;";
var progress = {
loaded: 0,
total: 0,
ref: importMbtiles
};
var mergeMeta = function () {
var updateValue = function (key, value) {
db[baseMbtiles].executeSql(metaUpdateStmt, [value, key], function () {
}, function (err) {
console.error(err);
});
};
db[baseMbtiles].executeSql(metaStmt, ['minzoom'], function (baseRes) {
db[importMbtiles].executeSql(metaStmt, ['minzoom'], function (importRes) {
if (importRes.rows.length > 0) {
var importValue = importRes.rows.item(0).value;
if (baseRes.rows.length > 0) {
var baseValue = baseRes.rows.item(0).value;
if (+baseValue > +importValue) {
updateValue('minzoom', importValue);
}
}
else {
updateValue('minzoom', importValue);
}
}
}, function (err) {
console.error(err);
});
}, function (err) {
console.error(err);
});
db[baseMbtiles].executeSql(metaStmt, ['maxzoom'], function (baseRes) {
db[importMbtiles].executeSql(metaStmt, ['maxzoom'], function (importRes) {
if (importRes.rows.length > 0) {
var importValue = importRes.rows.item(0).value;
if (baseRes.rows.length > 0) {
var baseValue = baseRes.rows.item(0).value;
if (+baseValue < +importValue) {
updateValue('maxzoom', importValue);
}
}
else {
updateValue('maxzoom', importValue);
}
}
}, function (err) {
console.error(err);
});
}, function (err) {
console.error(err);
});
db[baseMbtiles].executeSql(metaStmt, ['bounds'], function (baseRes) {
db[importMbtiles].executeSql(metaStmt, ['bounds'], function (importRes) {
if (importRes.rows.length > 0) {
var importValue = importRes.rows.item(0).value;
if (baseRes.rows.length > 0) {
var baseValue = baseRes.rows.item(0).value;
baseValue = baseValue.split(',');
importValue = importValue.split(',');
var changed = false;
if (baseValue[0] > importValue[0]) {
baseValue[0] = importValue[0];
changed = true;
}
if (baseValue[1] > importValue[1]) {
baseValue[1] = importValue[1];
changed = true;
}
if (baseValue[2] < importValue[2]) {
baseValue[2] = importValue[2];
changed = true;
}
if (baseValue[3] < importValue[3]) {
baseValue[3] = importValue[3];
changed = true;
}
if (changed) {
baseValue = baseValue.join(',');
updateValue('bounds', baseValue);
}
}
else {
updateValue('bounds', importValue);
}
}
}, function (err) {
console.error(err);
});
}, function (err) {
console.error(err);
});
};
var transferDb = function () {
var transferDefer = $q.defer();
mergeMeta();
db[baseMbtiles].executeSql(attachStmt, [importMbtiles], function () {
db[baseMbtiles].executeSql(imagesInsertStmt, [], function (imagesRes) {
progress.loaded = imagesRes.rowsAffected;
progressFunction(progress);
db[baseMbtiles].executeSql(mapInsertStmt, [], function () {
db[baseMbtiles].executeSql(detachStmt, [], function () {
progress.loaded = progress.total;
progressFunction(progress);
transferDefer.resolve();
}, function (err) {
transferDefer.reject(err);
});
}, function (err) {
transferDefer.reject(err);
});
}, function (err) {
transferDefer.reject(err);
});
}, function (err) {
transferDefer.reject(err);
});
return transferDefer.promise;
};
baseMbtiles = baseMbtiles.substr(7);
importMbtiles = importMbtiles.substr(7);
db[baseMbtiles] = openCordovaDB(baseMbtiles);
db[importMbtiles] = openCordovaDB(importMbtiles);
db[importMbtiles].executeSql(mapCountStmt, [], function (mapCount) {
progress.total += mapCount.rows.item(0).count;
db[importMbtiles].executeSql(imagesCountStmt, [], function (imagesCount) {
progress.total += imagesCount.rows.item(0).count;
transferDb().then(function () {
defer.resolve();
}, function (err) {
defer.reject(err);
});
}, function (err) {
defer.reject(err);
});
}, function (err) {
defer.reject(err);
});
return defer.promise;
};
mbtiles.getTotalRecords = function (arrayLink) {
/* it counts the sum of all mbtiles map and images table records
*/
var defer = $q.defer(),
mapStmt = "SELECT COUNT(*) AS count FROM map;",
imagesStmt = "SELECT COUNT(*) AS count FROM images;",
total = 0,
promises = [],
db = [];
var calculateDbTotal = function (link) {
var calcDefer = $q.defer();
var currentDb = openCordovaDB(link);
db[link] = currentDb;
currentDb.executeSql(imagesStmt, [], function (images) {
total += images.rows.item(0).count;
currentDb.executeSql(mapStmt, [], function (map) {
total += map.rows.item(0).count;
calcDefer.resolve();
}, function (err) {
console.error(err);
calcDefer.resolve();
});
}, function (err) {
console.error(err);
defer.resolve();
});
return calcDefer.promise;
};
var start = 0;
if (!isAndroid) {
start = 1;
}
for (var i = start; i < arrayLink.length; i++) {
promises.push(calculateDbTotal(arrayLink[i].substring(7)));
}
$q.all(promises).then(function () {
defer.resolve(total);
}).catch(function (err) {
console.error(err);
defer.reject(err);
});
return defer.promise;
};
return mbtiles;
});
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