angular.module('MapService', ["AjaxService"]).service('Map', function (Ajax, $q) {
    this.place = function (term) {
        var defer = $q.defer();
        if (term && term.trim() !== "" && term.trim().length >= 5) {
            Ajax.post("Map", "search", {term: term}, function (data) {
                defer.resolve(data);
            });
        } else {
            defer.resolve([]);
        }

        return defer.promise;
    };

    this.geocode = function (placeId) {
        var defer = $q.defer();
        var geocoder = new google.maps.Geocoder();
        geocoder.geocode({'placeId': placeId}, function (results, status) {
            if (status === 'OK' && results && results[0]) {
                defer.resolve(results[0]);
            } else {
                defer.reject(null);
            }
        });
        return defer.promise;
    };

    this.checkPlace = function(term, address_number) {
        var that = this;
        var defer = $q.defer();
        this.place(term).then(function (results) {
            if (results && results.length > 0) {
                var result = results[0];
                if (result && result.place_id) {
                    that.geocode(result.place_id).then(function (address) {
                        var real_address = that.decodeAddress(address, address_number);
                        if (real_address) {
                            if (real_address.valid) {
                                defer.resolve({place_id: result.place_id, address: real_address});
                            } else {
                                defer.reject({place_id: result.place_id, address: real_address});
                            }
                        } else {
                            defer.reject({place_id: result.place_id});
                        }
                    }, function() {
                        defer.reject({place_id: result.place_id});
                    });
                } else {
                    defer.reject(null);
                }
            } else {
                defer.reject(null);
            }
        }, function () {
            defer.reject(null);
        });
        return defer.promise;
    };

    this.decodeAddress = function (address, street_number) {
        var real_address = {
            valid: false,
            valid_nonumber: false,
            full: null,
            route: null,
            street_number: null,
            manual_number: false,
            postal_code: null,
            country: null,
            place_id: null,
            version: 2
        };

        if (address && address.address_components) {
            real_address.full = address.formatted_address;
            real_address.place_id = address.place_id;
            angular.forEach(address.address_components, function (value) {
                if (value.types.indexOf("street_number") !== -1) {
                    real_address.street_number = value.short_name;
                } else if (value.types.indexOf("route") !== -1) {
                    real_address.route = value.short_name;
                } else if (value.types.indexOf("country") !== -1) {
                    real_address.country = value.short_name;
                } else if (value.types.indexOf("postal_code") !== -1) {
                    real_address.postal_code = value.short_name;
                } else if (value.types.indexOf("locality") !== -1) {
                    real_address.locality = value.short_name;
                }
            });

            if (real_address.street_number === null && street_number) {
                real_address.street_number = street_number;
                real_address.manual_number = true;
            }

            if (real_address.country && real_address.postal_code && real_address.route) {
                if (real_address.country.trim() !== "" && real_address.postal_code.trim() !== "" && real_address.route.trim() !== "") {
                    if (real_address.country === "IT") {
                        if (real_address.street_number && real_address.street_number.trim() !== "") {
                            real_address.valid = true;
                        } else {
                            real_address.valid_nonumber = true;
                        }
                    }
                }
            }
        }

        return real_address;
    };
});