const moment = require("moment")

const {chapterApi} = require("../../../../../rpdata/api/Chapter")

module.exports = class {
  onCreate(input) {
    this.state = {
      error: null,
      loading: false,
      values: {
        title: "",
        source: "",
        fictionalDate: "",
      },
    }

    this.first = false
  }

  onInput(input) {
    if (input.chapter && !this.first) {
      let {fictionalDate, title, source} = input.chapter

      if (fictionalDate != null) {
        fictionalDate = moment.utc(fictionalDate).format("MMM D, YYYY")
      }
  
      this.state.values = {fictionalDate, title, source}
    }
  }

  change(key, ev) {
    this.state.values[key] = ev.target.value
  }

  open() {
    
  }

  close() {
    this.first = false
    this.emit("close")
  }

  save() {
    const values = this.state.values

    if (values.source.length < 1) {
      this.state.error = "You cannot post an empty chapter."
      return
    }
    
    let fictionalDate = new Date(values.fictionalDate + " UTC")
    if (values.fictionalDate != "") {
      if (Number.isNaN(fictionalDate)) {
        this.state.error = `Could not parse ${values.fictionalDate} as date!`
        return
      }
    } else {
      fictionalDate = null
    }
    
    const input = {storyId: this.input.storyId, title: values.title, source: values.source, fictionalDate}

    chapterApi.addChapter(input).then(chapter => {
      this.emit("add", chapter)
      this.emit("close")

      this.state.values = {
        title: "",
        source: "",
        fictionalDate: "",
      }
    }).catch(errs => {
      console.warn("Failed to edit:", errs)

      this.state.error = "Failed to edit: " + errs[0].message
    }).then(() => {
      this.state.loading = false
    })
  }
}