//入力時にハッシュタグと@をサジェスト
var timer = null

var input = document.getElementById('textarea')

var prev_val = input.value
var oldSuggest
var suggest

input.addEventListener(
	'focus',
	function () {
		localStorage.removeItem('cursor')
		var acct_id = $('#post-acct-sel').val()
		$('#suggest').html('')
		$('#suggest').hide()
		window.clearInterval(timer)
		timer = window.setInterval(function () {
			var new_val = input.value
			if (new_val == '') {
				$('#suggest').html('')
				$('#suggest').hide()
				return
			}
			if (prev_val != new_val) {
				const pos = input.selectionStart
				let startI = pos - 1
				let hasDomain = false
				let hasDomainOnce = false
				for (startI = pos - 1; startI >= 0; startI--) {
					if (new_val[startI].match(/\./)) hasDomain = true
					if (new_val[startI].match(/#|@|:/) && !hasDomain) break
					if (new_val[startI].match(/@/) && hasDomainOnce) break
					if (new_val[startI].match(/@/) && !hasDomainOnce) hasDomainOnce = true
				}
				const target = new_val.substr(startI, pos - startI)
				var tag = target.match(/#(\S{3,})/g)
				var acct = target.match(/@(\S{3,})(@(\S{3,}))?/g)
				var emoji = target.match(/:(\S{1,})/g)
				if (emoji && emoji[0]) {
					const l = emoji[0]
					const emojis = localStorage.getItem('emojis_raw_' + acct_id)
					const json = emojis ? JSON.parse(emojis) : []
					const reg = new RegExp(`${emoji[0]}`)
					let listHtml = ''
					for (const emoji of json) {
						const { shortcode, url } = emoji
						if (`:${shortcode}`.match(reg)) {
							listHtml = listHtml + `${listHtml ? `<br>` : ``}<a onclick="tagInsert(':${shortcode}:','${l}')" class="pointer"><img src="${url}" width="15">:${shortcode}:</a>`
						}
					}
					$('#suggest').html(listHtml)
					$('#suggest').show()
				} else if (tag && tag[0]) {
					var q = tag[0]
				} else if (acct && acct[0]) {
					var q = acct[0]
				} else {
					$('#suggest').html('')
					$('#suggest').hide()
					return
				}
				if (q) {
					var domain = localStorage.getItem('domain_' + acct_id)
					var at = localStorage.getItem('acct_' + acct_id + '_at')
					suggest = 'https://' + domain + '/api/v2/search?q=' + encodeURIComponent(q)
					if (suggest != oldSuggest) {
						console.log('Try to get suggest at ' + suggest)
						fetch(suggest, {
							method: 'GET',
							headers: {
								'content-type': 'application/json',
								Authorization: 'Bearer ' + at
							}
						})
							.then(function (response) {
								if (!response.ok) {
									response.text().then(function (text) {
										setLog(response.url, response.status, text)
									})
								}
								return response.json()
							})
							.catch(function (error) {
								todo(error)
								setLog(start, 'JSON', error)
								console.error(error)
							})
							.then(function (json) {
								console.log(['Search', json])
								//ハッシュタグ
								if (json.hashtags[0] && tag) {
									if (tag[0]) {
										var tags = []
										Object.keys(json.hashtags).forEach(function (key4) {
											var tag = json.hashtags[key4]
											var his = tag.history
											var uses =
												his[0].uses * 1 +
												his[1].uses * 1 +
												his[2].uses * 1 +
												his[3].uses * 1 +
												his[4].uses * 1 +
												his[5].uses * 1 +
												his[6].uses * 1
											tagHTML = `<br><a onclick="tagInsert('#${escapeHTML(
												tag.name
											)}','${q}')" class="pointer">#${escapeHTML(tag.name)}</a>&nbsp;${uses}toot(s)`

											var item = {
												uses: uses,
												html: tagHTML
											}
											tags.push(item)
										})
										var num_a = -1
										var num_b = 1
										tags = tags.sort(function (a, b) {
											var x = a['uses']
											var y = b['uses']
											if (x > y) return num_a
											if (x < y) return num_b
											return 0
										})
										var ins = ''
										var nev = false
										Object.keys(tags).forEach(function (key7) {
											ins = ins + tags[key7].html
											if (key7 <= 0 && !nev) {
												//ins = ins + '<br>'
												nev = true
											}
										})
										$('#suggest').html(ins)
										$('#suggest').show()
									}
								} else if (json.accounts[0] && acct[0]) {
									var accts = ''
									Object.keys(json.accounts).forEach(function (key3) {
										var acct = json.accounts[key3]
										if (acct.acct != q) {
											//Instance Actorって…
											if (acct.username.indexOf('.') < 0) {
												accts =
													accts +
													`<a onclick="tagInsert('@${acct.acct}','${q}')" class="pointer">@${acct.acct}</a><br>`
											}
										}
									})
									$('#suggest').html(accts)
									$('#suggest').show()
								} else {

								}
							})
					}
				}
			}
			oldSuggest = suggest
			prev_val = new_val

			const rectTextarea = document.querySelector('#textarea')
			const rect = rectTextarea.getBoundingClientRect()
			const caret = getCaretCoordinates(rectTextarea, rectTextarea.selectionEnd)
			$('#suggest').css('top', `calc(${caret.top}px + 1rem)`)
			const left = rect.width / 2 < caret.left ? rect.width / 2 : caret.left
			$('#suggest').css('left', left)
		}, 1000)
	},
	false
)

input.addEventListener(
	'blur',
	function () {
		window.clearInterval(timer)
		favTag()
	},
	false
)
function tagInsert(code, del, emoji) {
	if (localStorage.getItem('emoji-zero-width') == 'yes' && emoji) {
		var blankBefore = '​'
		var blankAfter = '​'
	} else {
		var blankBefore = ' '
		var blankAfter = ' '
	}
	var textarea = document.querySelector('#textarea')
	var sentence = textarea.value
	var len = sentence.length
	var pos = textarea.selectionStart
	if (del) {
		var delLen = del.length
	} else {
		var delLen = 0
	}
	var before = sentence.substr(0, pos - delLen)
	var last = before.substr(-1, 1)
	if (last == ' ') blankBefore = ''
	var after = sentence.substr(pos, len)
	var start = after.substr(0, 1)
	if (start == ' ') blankAfter = ''
	if (len === delLen) {
		var word = code + blankAfter
	} else if (len == pos) {
		var word = blankBefore + code + blankAfter
	} else if (pos == 0) {
		var word = code + blankAfter
	} else {
		var word = blankBefore + code + blankAfter
	}
	sentence = before + word + after
	textarea.value = sentence
	$('#suggest').html('')
	$('#suggest').hide()
	$('#textarea').focus()
}
function cgNPs(q) {
	suggest = 'https://cg.toot.app/api/v1/search/light?q=' + q
	if (suggest != oldSuggest) {
		console.log('Try to get suggest at ' + suggest)
		fetch(suggest, {
			method: 'GET',
			headers: {
				'content-type': 'application/json'
			}
		})
			.then(function (response) {
				if (!response.ok) {
					response.text().then(function (text) {
						setLog(response.url, response.status, text)
					})
				}
				return response.json()
			})
			.catch(function (error) {
				todo(error)
				setLog(start, 'JSON', error)
				console.error(error)
			})
			.then(function (json) {
				if (json[0]) {
					var tags = ''
					Object.keys(json).forEach(function (key4) {
						var tag = json[key4]
						tags =
							tags +
							`<a onclick="cgNp('${json[key4]}')" class="pointer">${escapeHTML(json[key4])}</a>`
					})
					$('#suggest').html('Cinderella NowPlaying:' + tags)
				} else {
					$('#suggest').html('Cinderella NowPlaying:Not Found')
				}
			})
	}
}