info.js

   1 const fs = require("fs").promises
   2 const criteriaKeys = ["tag", "group", "artist", "character", "parody"]
   3
   4 module.exports.doujins = shortNames => fs.readdir(".", {encoding: "utf8", withFileTypes: true})
   5         .then(doujins => doujins
   6                 .map(dirent => fs.readFile(`${dirent.name}/metadata.json`)
   7                         .then(data => JSON.parse(data.toString()))
   8                         .then(data => {data.title = dirent.name; return data})
   9                         .then(data => [dirent.name, data])
  10                         .catch(_ => [])))
  11         .then(promises => Promise.all(promises))
  12         .then(doujins => doujins
  13                 .filter(([title, data]) => title && data))
  14                 //.filter(([title, data]) => (title == data.title) == !shortNames))
  15         .then(doujins => Object.fromEntries(doujins))
  16
  17 module.exports.criteria = _ => {
  18         const criteria = Object.fromEntries(criteriaKeys.map(key => [key, {["*"]: []}]))
  19
  20         return module.exports.doujins()
  21                 .then(doujins => Object.values(doujins))
  22                 .then(doujins => doujins
  23                         .forEach(doujin =>
  24                                 criteriaKeys.forEach(crit => {
  25                                         criteria[crit]["*"].push(doujin.title)
  26
  27                                         doujin[crit] && doujin[crit].forEach(val => {
  28                                                 criteria[crit][val] = criteria[crit][val] || []
  29                                                 criteria[crit][val].push(doujin.title)
  30                                         })
  31                                 })
  32                         ))
  33                 .then(_ => criteria)
  34 }