97 lines
3.2 KiB
Go
97 lines
3.2 KiB
Go
/*
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* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package main
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import (
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"errors"
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"fmt"
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"strconv"
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"strings"
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"github.com/PuerkitoBio/goquery"
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)
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type tabelog struct {
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}
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func (tabelog) define(keyword string) semantics {
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return map[string]semantics{
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"dishes": {Accomodating: 0.0, Affordable: 0.0, Atmospheric: 0.0, Delicious: 0.8},
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"drinks": {Accomodating: 0.0, Affordable: 0.0, Atmospheric: 0.0, Delicious: 0.2},
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"service": {Accomodating: 1.0, Affordable: 0.0, Atmospheric: 0.0, Delicious: 0.0},
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"cost": {Accomodating: 0.0, Affordable: 1.0, Atmospheric: 0.0, Delicious: 0.0},
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"atmosphere": {Accomodating: 0.0, Affordable: 0.0, Atmospheric: 1.0, Delicious: 0.0},
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}[keyword]
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}
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func (tabelog) index(doc *goquery.Document) (string, []string) {
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var reviewUrls []string
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doc.Find("div.list-rst__header > p > a").Each(func(index int, sel *goquery.Selection) {
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if href, ok := sel.Attr("href"); ok {
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reviewUrls = append(reviewUrls, href)
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}
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})
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var nextIndexUrl string
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if href, ok := doc.Find("a.c-pagination__target--next").Attr("href"); ok {
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nextIndexUrl = href
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}
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return nextIndexUrl, reviewUrls
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}
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func (tabelog) review(doc *goquery.Document) (name, address string, features map[string]float64, weight float64, err error) {
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if name = doc.Find("a.rd-header__rst-name-main").Text(); len(name) == 0 {
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err = errors.New("invalid name")
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return
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}
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if addresses := doc.Find("p.rd-detail-info__rst-address"); addresses.Length() == 2 {
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address = strings.TrimSpace(addresses.First().Text())
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} else {
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err = errors.New("invalid address")
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return
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}
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features = make(map[string]float64)
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for index, category := range []string{"dishes", "service", "atmosphere", "cost", "drinks"} {
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valueText := doc.Find(fmt.Sprintf("dl#js-rating-detail > dd:nth-child(%d)", (index+1)*2)).Text()
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var value float64
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if value, err = strconv.ParseFloat(valueText, 8); err != nil {
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err = fmt.Errorf("invalid rating for %s", category)
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return
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}
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features[category] = value/2.5 - 1.0
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}
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weight, err = strconv.ParseFloat(doc.Find("a.rd-header__rst-reviews-target > b").Text(), 8)
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if err != nil {
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err = fmt.Errorf("invalid review count")
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return
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}
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return
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}
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