The frontend/UI server, written in JS using the MarkoJS library
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const moment = require("moment")
const {postApi} = require("../../../../../rpdata/api/Post")
module.exports = class {
onCreate(input) {
this.state = {
log: input.log,
modal: null,
removed: false,
}
}
open(modal) {
this.state.modal = modal
}
close() {
this.state.modal = null
}
/**
* Patch the posts
*
* @param {{id:string, [x:string]: any}[]} patches
*/
patch(patches) {
const posts = this.state.log.posts.slice()
for (const patch of patches) {
const index = posts.findIndex(p => p.id === patch.id)
if (index == -1) {
console.warn("Post not found for patch:", patch)
// TODO: Force full refresh
continue
}
posts[index] = Object.assign(Object.assign({}, posts[index]), patch)
}
// Sort posts and look for continuity issues (duplicate or skipped positions)
posts.sort((a, b) => a.position - b.position)
for (let i = 1; i < posts.length; ++i) {
if (posts[i].position !== posts[i - 1].position + 1) {
console.warn("Discontinuity detected!")
// TODO: Force full refresh
}
}
this.state.log.posts = posts
this.state.log = Object.assign({}, this.state.log)
}
movePost(post, toPosition, relative) {
if (relative) {
toPosition = post.position + toPosition
}
postApi.move({id: post.id, toPosition}).then(patches => {
this.patch(patches)
}).catch(err => {
console.warn(err)
})
}
removePost(post) {
postApi.remove({id: post.id}).then(() => {
this.state.log.posts = this.state.log.posts.filter(p => p.id !== post.id)
for (const p of this.state.log.posts) {
if (p.position > post.position) {
p.position--
}
}
this.state.log = Object.assign({}, this.state.log)
}).catch(errs => {
console.warn("Failed to delete:", errs)
this.state.error = "Failed to delete: " + (errs.message || errs[0].message)
})
}
postEdited(patch) {
this.patch([patch])
}
logEdited(patch) {
this.state.log = Object.assign(Object.assign({}, this.state.log), patch)
}
postAdded(post) {
this.state.log.posts = this.state.log.posts.concat([post])
this.state.log = Object.assign({}, this.state.log)
}
logRemoved() {
this.state.removed = true
}
get title() {
if (this.state.log.title) {
return this.state.log.title
}
return `${this.state.log.channel.name}${moment(this.state.log.date).format("MMMM D, YYYY")}`
}
}