Merge pull request #6 from MikunoNaka/manga

Manga package completed

1 files changed, 155 insertions, 0 deletions

diff --git a/manga/manga.go b/manga/manga.go
new file mode 100644
index 0000000..9979bff
--- /dev/null
+++ b/manga/manga.go
@@ -0,0 +1,155 @@
+/* MAL2Go - MyAnimeList V2 API wrapper for Go
+ * Copyright (C) 2022  Vidhu Kant Sharma <vidhukant@protonmail.ch>
+
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>. */
+
+package manga
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strconv"
+  e "github.com/MikunoNaka/MAL2Go/errhandlers"
+  u "github.com/MikunoNaka/MAL2Go/util"
+)
+
+const BASE_URL string = "https://api.myanimelist.net/v2/manga"
+
+// MAL Might change this
+const maxMangaLimit int = 100
+
+// in MAL documentation this is named Get Manga List
+func (c Client) SearchManga(searchString string, limit, offset int, fields []string) (MangaSearch, error) {
+  var searchResults MangaSearch
+
+  // error handling for limit
+  limitErr := e.LimitErrHandler(limit, maxMangaLimit)
+  if limitErr != nil {
+    return searchResults, limitErr
+  }
+
+  // handle all the errors for the fields
+  fields, err := e.MangaFieldsErrHandler(fields)
+  if err != nil {
+    return searchResults, err
+  }
+
+  // generate endpoint url with custom params
+  endpoint, _ := u.UrlGenerator(
+    BASE_URL,
+    []string{"q", "limit", "offset", "fields"},
+    [][]string{{searchString}, {strconv.Itoa(limit)}, {strconv.Itoa(offset)}, fields},
+    true,
+  )
+
+  // gets data from API and stores it in a struct
+  var mangaSearchData MangaSearchRaw
+  data := c.requestHandler(endpoint)
+  json.Unmarshal([]byte(data), &mangaSearchData)
+
+  // Adding all the mangas to another list to get formatted results later
+  var mangas []Manga
+  for _, element := range mangaSearchData.Data { 
+    mangas = append(mangas, element.Manga) 
+  } 
+
+  // finally generate AnimeList 
+  searchResults = MangaSearch {
+    Mangas: mangas,
+    Paging: mangaSearchData.Paging,
+  }
+
+  return searchResults, nil
+}
+ 
+// Each manga has its own ID on MAL
+func (c Client) GetMangaById(mangaId int, fields []string) (Manga, error) {
+  var manga Manga
+
+  // handle all the errors for the fields
+  fields, err := e.MangaFieldsErrHandler(fields)
+  if err != nil {
+    return manga, err
+  }
+
+  endpoint, _ := u.UrlGenerator(
+    BASE_URL + "/" + strconv.Itoa(mangaId),
+    []string{"fields"},
+    [][]string{fields},
+    true,
+  )
+
+  data := c.requestHandler(endpoint)
+  json.Unmarshal([]byte(data), &manga)
+
+  return manga, nil
+}
+
+// Ranking is a list of anime sorted by their rank
+func (c Client) GetMangaRanking(rankingType string, limit, offset int, fields []string) (MangaRanking, error) {
+  var mangaRanking MangaRanking
+
+  // error handling for limit
+  limitErr := e.LimitErrHandler(limit, maxMangaLimit)
+  if limitErr != nil {
+    return mangaRanking, limitErr
+  }
+
+  // handle all the errors for the fields
+  fields, err := e.MangaFieldsErrHandler(fields)
+  if err != nil {
+    return mangaRanking, err
+  }
+
+  // if ranking type is invalid
+  if !e.IsValidMangaRankingType(rankingType) {
+    return mangaRanking, errors.New(fmt.Sprintf("GetMangaRanking: Invalid ranking type specified: \"%s\"", rankingType))
+  }
+
+  endpoint, _ := u.UrlGenerator(
+    BASE_URL + "/ranking",
+    []string{"ranking_type", "limit", "offset", "fields"},
+    [][]string{{rankingType}, {strconv.Itoa(limit)}, {strconv.Itoa(offset)}, fields},
+    true,
+  )
+
+  // gets data from API and stores it in a struct
+  var rankingData RawRanking
+  data := c.requestHandler(endpoint)
+  json.Unmarshal([]byte(data), &rankingData)
+
+  // Adding all the animes in ranking list to a slice
+  var mangas []rManga
+
+  for _, manga := range rankingData.Data {
+    // set RankNum for manga
+    newManga := manga.Manga
+    newManga.RankNum = manga.Ranking.Rank
+
+    // add newManga to list
+    mangas = append(mangas, newManga)
+  }
+
+  // Finally, create the AnimeRanking object
+  mangaRanking = MangaRanking {
+    Mangas: mangas,
+    Paging: ListPaging {
+      NextPage: rankingData.Paging.NextPage,
+      PrevPage: rankingData.Paging.PrevPage,
+    },
+  }
+
+  return mangaRanking, nil
+}