import { Component, NewState, Util, $, State } from '@apigo.cc/state'
import { HTTP } from './http.js'

Component.register('AutoForm', container => {
	if (!container.state.schema) container.state.schema = []
	
	// TRY: 确保 state.data 始终是响应式 Proxy，支持深层嵌套属性的监听
	const ensureProxy = v => (v && typeof v === 'object' && !v.__isProxy) ? NewState(v) : v;
	container.state.__watch('data', v => container.data = ensureProxy(v));
	container.data = ensureProxy(container.state.data || {});

	container.vertical = container.hasAttribute('vertical')
	container.inline = container.hasAttribute('inline')
	container.request = { method: 'POST' }
	container.response = {}
	container.result = null

	// 初始化数据联动：如果处于行编辑模式（inline），监听全局编辑状态
	if (container.inline) {
		State.__watch('editingData', (data) => {
			container.data = data
		})
		State.__watch('editingSchema', (schema) => {
			container.state.schema = schema
		})
	}

	container.form = $(container, 'form')
	container.submit = (opt = {}) => {
		if (!container.form.reportValidity()) return globalThis.UI?.toast?.('{#verify failed#}', { type: 'danger' })
		if (!container.dispatchEvent(new CustomEvent('submit', { detail: container.data, cancelable: true, bubbles: false }))) return
		const req = { ...container.request, data: container.data, noui: true, ...opt }
		let task = null
		if (container.api) task = container.api.do(req)
		else if (container.request.url) task = HTTP.request(req)
		else return console.warn('{#please config .api or .request.url to auto submit#}')
		task.then(resp => {
			container.response = resp
			container.result = resp.result
			if (typeof resp.result === 'object' && resp.result.error) throw new Error(resp.result.error)
			container.dispatchEvent(new CustomEvent('response', { detail: resp, bubbles: false }))
		}).catch(err => {
			if (globalThis.UI?.toast) UI.toast(err.message, { type: 'danger' })
			container.dispatchEvent(new CustomEvent('error', { detail: err, bubbles: true }))
		})
	}
}, Util.makeDom(/*html*/`
<div $class="auto-form-root d-flex \${this.inline ? 'auto-form-inline h-100 w-100' : ''}">
  <form $class="w-100 d-flex flex-fill \${this.inline ? 'align-items-stretch h-100' : (this.vertical ? 'flex-column' : 'auto-grid-form')}" $onsubmit="event.stopPropagation();event.preventDefault();this.submit()">
  <template $each="this.state.schema || []">
    <template $if="item.if || 'true'">
      <div style="display:contents">
        <template $if="!this.inline">
          <label $name="item.name" class="col-form-label text-muted" $text="item.label"></label>
        </template>
        <div control-wrapper $class="\${this.inline ? 'flex-grow-1 h-100 d-flex align-items-center' : 'mb-3'}">
          <template $if="['text', 'password', 'email', 'number', 'date', 'datetime', 'file'].includes(item.type)">
            <input $name="item.name" $type="item.type" $.="item.setting || {}" $bind="this.data[item.name]" $class="form-control h-100 \${item.type === 'number' ? 'text-end' : ''}">
          </template>
          <template $if="item.type === 'select'">
            <select $name="item.name" $.="item.setting || {}" $bind="this.data[item.name]" class="form-select h-100">
              <template $if="item.placeholder">
                <option value="" $text="item.placeholder" disabled selected></option>
              </template>
              <template $each="item.options" as="opt">
                <option $value="opt.value || opt" $text="opt.label || opt"></option>
              </template>
            </select>
          </template>
          <template $if="['checkbox', 'radio'].includes(item.type)">
            <div $class="\${this.inline ? 'h-100 d-flex align-items-center px-2 gap-3 justify-content-center w-100 bg-body' : ''}" style="white-space:nowrap; border-radius: 4px;">
              <template $each="item.options || [item.text||item.label||item.name]" as="option">
                <label $class="form-check \${item.vertical ? '' : 'form-check-inline'} mb-0 d-flex align-items-center p-0">
                  <input $name="item.name" class="form-check-input me-1" $type="item.type" $.="item.setting || {}" $value="item.options?option:'on'" $bind="this.data[item.name]">
                  <template $if="!this.inline || (item.options && item.options.length > 0)">
                    <span $text="option" class="form-check-label"></span>
                  </template>
                </label>
              </template>
            </div>
          </template>
          <template $if="item.type === 'switch'">
            <div $class="form-check form-switch fs-4 h-100 d-flex align-items-center px-2 m-0 \${this.inline ? 'justify-content-center w-100' : ''}" style="padding-left:0">
              <input $name="item.name" class="form-check-input m-0" type="checkbox" style="cursor:pointer" $bind="this.data[item.name]">
            </div>
          </template>
          <template $if="item.type === 'textarea'">
            <textarea $name="item.name" class="form-control" $.="item.setting || {}" $bind="this.data[item.name]"></textarea>
          </template>
          
          <!-- 扩展控件容器 -->
          <template $each="AutoForm.customTypes" as="ext">
            <template $if="item.type?.toLowerCase() === ext.typeName.toLowerCase()">
              <div $is="ext.name" $name="item.name" $.="item.setting || {}" $bind="this.data[item.name]" class="h-100"></div>
            </template>
          </template>
        </div>
      </div>
    </template>
  </template>
  <template $if="!this.inline">
    <div class="d-flex justify-content-end align-items-baseline gap-3 mt-3" style="grid-column:1/-1">
      <div slot-id="actions"></div>
      <button type="submit" class="btn btn-primary" $text="this.submitlabel || '{#Submit#}'"></button>
    </div>
  </template>
  </form>
</div>
`), Util.makeDom(/*html*/`<style>
	@media (min-width: 576px) { .auto-grid-form {display: grid;grid-template-columns: max-content 1fr} .auto-grid-form .col-form-label {text-align: right; margin-bottom: 1rem;padding-right: 1rem;max-width: 200px} }
	.auto-form-inline { background-color: var(--bs-body-bg); }
	.auto-form-inline.min-h-100 { min-height: 100%; height: auto; }
	.auto-form-inline .form-control, .auto-form-inline .form-select { border-radius: 0; border: none; background-color: transparent !important; min-height: 100%; height: auto; width: 100%; padding: 0 8px; box-shadow: none; color: inherit; }
	.auto-form-inline .form-select { background-position: right 4px center; background-size: 12px 10px; padding-right: 20px; }
	.auto-form-inline textarea.form-control { padding: 8px; min-height: 100px; height: auto; }
</style>`))

export const AutoForm = {
	customTypes: [],
	register: (name, typeName) => {
		const type = typeName || name
		if (!AutoForm.customTypes.find(t => t.name === name)) {
			AutoForm.customTypes.push({ name, typeName: type })
		}
	}
}

Component.register('TagsInput', container => {
	container.state = NewState({ tags: [] })
	container.addEventListener('bind', e => {
		container.state.tags = Array.isArray(e.detail) ? e.detail : []
	})
	// Handle direct property access
	Object.defineProperty(container, 'value', {
		get: () => container.state.tags,
		set: v => { container.state.tags = Array.isArray(v) ? v : []; }
	})
}, Util.makeDom(/*html*/`
<div class="form-control d-flex flex-wrap gap-1 align-items-center w-100" style="cursor:text; min-height: 38px; border: none !important; background: transparent !important; box-shadow: none !important; padding: 0 8px !important;">
  <button $each="(this.state && this.state.tags) || []" type="button" class="btn btn-sm btn-outline-primary rounded-pill py-0 px-2" $onkeydown="${Util.getFunctionBody(function (event) {
	if (['Backspace', 'Delete'].includes(event.key)) {
		event.preventDefault()
		if (this.state?.tags) {
			this.state.tags.splice(index, 1)
			this.state.tags = this.state.tags
			this.dispatchEvent(new CustomEvent('change', { bubbles: true, detail: this.state.tags }))
			Promise.resolve().then(() => {
				const buttons = this.querySelectorAll('button');
				if (buttons.length > 0) (buttons[index > 0 ? index - 1 : 0] || buttons[0]).focus()
				else { const input = $(this, 'input'); if (input) input.focus(); }
			})
		}
	}
})}" $text="item"></button>
  <input type="text" class="border-0 shadow-none py-0 px-2 flex-grow-1 bg-transparent" placeholder="{#new tag name#}" style="min-width:100px;width:0;outline:none; height: 32px" $onkeydown="${Util.getFunctionBody(function (event) {
	if (event.isComposing) return
	if (['Enter', ',', ' '].includes(event.key)) {
		event.preventDefault()
		const v = thisNode.value.trim()
		if (v && this.state?.tags && !this.state.tags.includes(v)) {
			this.state.tags.push(v)
			this.state.tags = this.state.tags
			this.dispatchEvent(new CustomEvent('change', { bubbles: true, detail: this.state.tags }))
		}
		thisNode.value = ''
	}
})}">
</div>
`), Util.makeDom(/*html*/`<style>
	TagsInput { display: flex; align-items: center; min-height: 100%; width: 100%; background: transparent !important; }
	TagsInput button:focus {background-color:var(--bs-btn-hover-bg);color:var(--bs-btn-hover-color)}
</style>`))

AutoForm.register('TagsInput')