<template>
  <div class="createPost-container">
    <el-form ref="postForm" :model="postForm" :rules="rules" class="form-container">
      <div class="createPost-main-container">
        <el-row>
          <Warning />

          <el-col :span="24">
            <el-form-item style="margin-bottom: 40px;" prop="title">
              <MDinput v-model="postForm.title" :maxlength="50" name="name" required>
                文章标题
              </MDinput>
            </el-form-item>
            <div class="postInfo-container">
              <div style="margin-bottom: 10px;">封面图</div>
              <el-form-item prop="cover_img" style="margin-bottom: 30px;" label="">
                <Upload v-model="postForm.cover_img" />
              </el-form-item>
            </div>
          </el-col>
        </el-row>
        <el-form-item prop="content" style="margin-bottom: 30px;">
          <Tinymce ref="editor" v-model="postForm.content" :height="400" />
        </el-form-item>
        <el-row>
          <el-button v-if="!isEdit" v-loading="loading" type="success" @click="submitForm">
            提交
          </el-button>
          <el-button v-if="isEdit" v-loading="loading" type="success" @click="updateArticle">
            修改
          </el-button>
        </el-row>
      </div>
    </el-form>
  </div>
</template>

<script>
import Tinymce from '@/components/Tinymce'
import Upload from '@/components/Upload/SingleImage3'
import MDinput from '@/components/MDinput'
// import Sticky from '@/components/Sticky' // 粘性header组件
// import { validURL } from '@/utils/validate'
import { fetchArticle, createArticle, updateArticle } from '@/api/article'
import { searchUser } from '@/api/remote-search'
import Warning from './Warning'
// import { CommentDropdown, PlatformDropdown, SourceUrlDropdown } from './Dropdown'

const defaultForm = {
  status: 'draft',
  title: '', // 文章题目
  content: '', // 文章内容
  content_short: '', // 文章摘要
  video_url: '', // 文章外链
  cover_img: '', // 文章图片
  display_time: undefined, // 前台展示时间
  id: undefined,
  platforms: ['a-platform'],
  comment_disabled: false,
  importance: 0
}

export default {
  name: 'ArticleDetail',
  components: { Tinymce, MDinput, Warning, Upload },
  props: {
    isEdit: {
      type: Boolean,
      default: false
    }
  },
  data() {
    const validateRequire = (rule, value, callback) => {
      if (value === '') {
        this.$message({
          message: rule.field + '为必传项',
          type: 'error'
        })
        callback(new Error(rule.field + '为必传项'))
      } else {
        callback()
      }
    }
    return {
      postForm: Object.assign({}, defaultForm),
      loading: false,
      userListOptions: [],
      rules: {
        cover_img: [{ message: '封面图不为空', validator: validateRequire }],
        title: [{ message: '标题不为空', validator: validateRequire }],
        content: [{ message: '内容不为空', validator: validateRequire }]
      },
      tempRoute: {}
    }
  },
  computed: {
    contentShortLength() {
      return this.postForm.content_short.length
    },
    displayTime: {
      // set and get is useful when the data
      // returned by the back end api is different from the front end
      // back end return => "2013-06-25 06:59:25"
      // front end need timestamp => 1372114765000
      get() {
        return (+new Date(this.postForm.display_time))
      },
      set(val) {
        this.postForm.display_time = new Date(val)
      }
    }
  },
  created() {
    if (this.isEdit) {
      const id = this.$route.params && this.$route.params.id
      this.fetchData(id)
    }
    // Why need to make a copy of this.$route here?
    // Because if you enter this page and quickly switch tag, may be in the execution of the setTagsViewTitle function, this.$route is no longer pointing to the current page
    // https://github.com/PanJiaChen/vue-element-admin/issues/1221
    this.tempRoute = Object.assign({}, this.$route)
  },
  methods: {
    fetchData(id) {
      fetchArticle(id).then(response => {
        this.postForm = response.data.info
        // set tags view title
        // this.setTagsViewTitle()
        // set page title
        // this.setPageTitle()
      }).catch(err => {
        console.log(err)
      })
    },
    setPageTitle() {
      const title = 'Edit Article'
      document.title = `${title} - ${this.postForm.id}`
    },
    submitForm() {
      this.$refs.postForm.validate(valid => {
        if (valid) {
          this.loading = true
          console.log(this.postForm)
          createArticle(this.postForm).then(response => {
            this.$notify({
              title: '成功',
              message: '发布文章成功',
              type: 'success',
              duration: 2000
            })
            this.postForm.status = 'published'
            this.loading = false
            this.listLoading = false
            this.$router.push(`/article/list`)
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    updateArticle() {
      console.log(this.postForm)
      updateArticle(this.postForm).then(response => {
        this.$notify({
          title: '修改',
          message: '修改文章成功',
          type: 'success',
          duration: 2000
        })
        this.postForm.status = 'published'
        this.loading = false
        this.listLoading = false
        this.$router.push(`/article/list`)
      })
    },
    draftForm() {
      if (this.postForm.content.length === 0 || this.postForm.title.length === 0) {
        this.$message({
          message: '请填写必要的标题和内容',
          type: 'warning'
        })
        return
      }
      this.$message({
        message: '保存成功',
        type: 'success',
        showClose: true,
        duration: 1000
      })
      this.postForm.status = 'draft'
    },
    getRemoteUserList(query) {
      searchUser(query).then(response => {
        if (!response.data.items) return
        this.userListOptions = response.data.items.map(v => v.name)
      })
    }
  }
}
</script>

<style lang="scss" scoped>
@import "~@/styles/mixin.scss";

.createPost-container {
  position: relative;

  .createPost-main-container {
    padding: 40px 45px 20px 50px;

    .postInfo-container {
      position: relative;
      @include clearfix;
      margin-bottom: 10px;

      .postInfo-container-item {
        float: left;
      }
    }
  }

  .word-counter {
    width: 40px;
    position: absolute;
    right: 10px;
    top: 0px;
  }
}

.article-textarea ::v-deep {
  textarea {
    padding-right: 40px;
    resize: none;
    border: none;
    border-radius: 0px;
    border-bottom: 1px solid #bfcbd9;
  }
}
</style>
