<!-- 设备管理使用折叠面板渲染多个tree -->
<template>
    <div :style="{ width: menuCollapse ? '40px' : props.width }" class="device-tree-root">
        <!-- <Icon
            v-show="menuCollapse"
            @click="onMenuCollapse"
            :name="menuCollapse ? 'el-icon-Expand' : 'el-icon-Fold'"
            :class="menuCollapse ? 'unfold' : ''"
            size="18px"
            class="fold ml10 mt20 menu-collapse"
            style="cursor: pointer"
        /> -->
        <div class="cn-tree" :style="{ opacity: menuCollapse ? 0 : 1 }">
            <div class="tree-search mb10">
                <el-input maxlength="32" show-word-limit 
                    
                    v-model.trim="filterText"
                    autocomplete="off"
                    placeholder="请输入内容"
                    clearable
                >
                    <template #prepend>
                        <el-select v-model="treeType" @change="changeTreeType" style="min-width: 75px">
                            <el-option
                                v-for="item in options"
                                :key="item.value"
                                :label="item.label"
                                :value="item.value"
                            />
                        </el-select>
                    </template>
                    <template #prefix>
                        <Icon name="el-icon-Search" style="font-size: 16px" />
                    </template>
                </el-input>
            </div>
            <div class="comm-tabs mb10">
                <el-tooltip
                    v-for="tab in commTabs"
                    :key="tab.key"
                    :content="tab.label"
                    placement="top"
                    :show-after="200"
                >
                    <button
                        type="button"
                        class="comm-tab"
                        :class="[
                            `is-${tab.key}`,
                            { 'is-active': commFilter === tab.key }
                        ]"
                        @click="onCommFilter(tab.key)"
                    >
                        <Icon :name="tab.icon" :size="12" class="comm-tab__icon" />
                        <span class="comm-tab__count">{{ tab.count }}</span>
                    </button>
                </el-tooltip>
            </div>

            <el-collapse
                :accordion="true"
                v-model="activeName"
                class="device-collapse"
                @change="changeDevice"
                v-if="treeType == '1'"
                v-loading="loading"
            >
                <el-collapse-item title="治理设备" name="0" v-if="zlDeviceData.length">
                    <div class="collapse-tree-panel collapse-tree-panel--govern">
                        <el-select v-model="process" clearable placeholder="请选择状态" class="mb10">
                            <el-option label="功能调试" value="2" />
                            <el-option label="出厂调试" value="3" />
                            <el-option label="正式投运" value="4" />
                        </el-select>
                        <el-tree
                            ref="treeRef1"
                            :props="defaultProps"
                            highlight-current
                            :filter-node-method="filterNode"
                            node-key="id"
                            :default-expand-all="false"
                            v-bind="treeAttrs"
                            :data="zlDevList"
                            class="collapse-tree"
                            @node-click="onTreeNodeClick"
                        >
                        <template #default="{ node, data: nodeData }">
                            <span class="custom-tree-node">
                                <Icon
                                    :name="nodeData.icon"
                                    style="font-size: 16px"
                                    :style="{ color: nodeData.color }"
                                    v-if="nodeData.icon"
                                />
                                <span style="margin-left: 4px">{{ node.label }}</span>
                            </span>
                        </template>
                    </el-tree>
                    </div>
                </el-collapse-item>
                <el-collapse-item title="便携式设备" name="1" v-if="bxsDeviceData.length">
                    <div class="collapse-tree-panel">
                        <el-tree
                            ref="treeRef2"
                            :props="defaultProps"
                            highlight-current
                            :default-expand-all="false"
                            :filter-node-method="filterNode"
                            node-key="id"
                            :data="bxsDeviceData"
                            v-bind="treeAttrs"
                            class="collapse-tree"
                            @node-click="onTreeNodeClick"
                        >
                        <template #default="{ node, data: nodeData }">
                            <span class="custom-tree-node">
                                <Icon
                                    :name="nodeData.icon"
                                    style="font-size: 16px"
                                    :style="{ color: nodeData.color }"
                                    v-if="nodeData.icon"
                                />
                                <span style="margin-left: 4px">{{ node.label }}</span>
                            </span>
                        </template>
                    </el-tree>
                    </div>
                </el-collapse-item>
                <el-collapse-item title="监测设备" name="2" v-if="frontDeviceData.length">
                    <div class="collapse-tree-panel">
                        <el-tree
                            ref="treeRef3"
                            :props="defaultProps"
                            highlight-current
                            :default-expand-all="false"
                            :filter-node-method="filterNode"
                            node-key="id"
                            :data="frontDeviceData"
                            v-bind="treeAttrs"
                            class="collapse-tree"
                            @node-click="onTreeNodeClick"
                        >
                        <template #default="{ node, data: nodeData }">
                            <span class="custom-tree-node">
                                <Icon
                                    :name="nodeData.icon"
                                    style="font-size: 16px"
                                    :style="{ color: nodeData.color }"
                                    v-if="nodeData.icon"
                                />
                                <span style="margin-left: 4px">{{ node.label }}</span>
                            </span>
                        </template>
                    </el-tree>
                    </div>
                </el-collapse-item>
            </el-collapse>
            <div v-if="treeType == '2'" class="engineering-tree-wrap" v-loading="loading">
                <el-tree
                    ref="treeRef4"
                    :props="defaultProps"
                    highlight-current
                    :filter-node-method="filterNode"
                    node-key="id"
                    v-bind="treeAttrs"
                    :data="props.data"
                    class="engineering-tree"
                    :default-expand-all="false"
                    @node-click="onTreeNodeClick"
                >
                    <template #default="{ node, data: nodeData }">
                        <span class="custom-tree-node">
                            <Icon
                                :name="nodeData.icon"
                                style="font-size: 16px"
                                :style="{ color: nodeData.color }"
                                v-if="nodeData.icon"
                            />
                            <span style="margin-left: 4px">{{ node.label }}</span>
                        </span>
                    </template>
                </el-tree>
            </div>
        </div>
    </div>
</template>

<script lang="ts" setup>
import useCurrentInstance from '@/utils/useCurrentInstance'
import { ElTree, type CollapseModelValue } from 'element-plus'
import { ref, watch, onMounted, nextTick, computed, useAttrs } from 'vue'
import { collectDeviceLeaves } from './govern/lineTreeUtils'
import { collectDeviceApiLeaves } from './govern/deviceTreeUtils'

defineOptions({
    name: 'govern/tree',
    inheritAttrs: false
})

const emit = defineEmits(['changeDeviceType', 'changeTreeType'])

interface Props {
    width?: string
    canExpand?: boolean
    type?: string
    data?: any[]
    height?: number
    engineering?: boolean
    /** line: getLineTree 四层叶子；device: getDeviceTree 三层叶子 */
    leafMode?: 'line' | 'device'
}

type CommFilter = 'all' | 'normal' | 'abnormal'

const props = withDefaults(defineProps<Props>(), {
    width: '280px',
    canExpand: true,
    type: '',
    data: () => [],
    height: 0,
    engineering: false,
    leafMode: 'line'
})

const treeType = ref('2')
const options = [
    { label: '工程', value: '2' },
    { label: '设备', value: '1' },
]

const { proxy } = useCurrentInstance()
const attrs = useAttrs()

/** 去掉 node-click，避免与本地处理重复/覆盖 */
const treeAttrs = computed(() => {
    const { onNodeClick: _onNodeClick, ...rest } = attrs as Record<string, any>
    return rest
})

const menuCollapse = ref(false)
const activeName = ref('0')
const filterText = ref('')
const process = ref('')
const loading = ref(false)
const commFilter = ref<CommFilter>('all')

const defaultProps = { label: 'name', value: 'id' }

const zlDeviceData = ref<any[]>([])
const zlDevList = ref<any[]>([])
const bxsDeviceData = ref<any[]>([])
const frontDeviceData = ref<any[]>([])

const treeRef1 = ref<InstanceType<typeof ElTree>>()
const treeRef2 = ref<InstanceType<typeof ElTree>>()
const treeRef3 = ref<InstanceType<typeof ElTree>>()
const treeRef4 = ref<InstanceType<typeof ElTree>>()

defineExpose({ treeRef1, treeRef2, treeRef3, treeRef4 })

const isCommNormal = (node: any) => Number(node?.comFlag) === 2

/** 设备叶子：Platform 且无子节点，或 type=device */
function isDeviceLeaf(data: any): boolean {
    if (!data) return false
    if (data.type === 'device') return true
    if (data.icon === 'el-icon-Platform' && (!data.children || !data.children.length)) return true
    if (data.level === 2 && data.icon === 'el-icon-Platform') return true
    return false
}

function collectDevices(nodes: any[], out: any[] = []): any[] {
    nodes?.forEach(n => {
        if (isDeviceLeaf(n)) out.push(n)
        if (n.children?.length) collectDevices(n.children, out)
    })
    return out
}

const deviceList = computed(() => {
    if (treeType.value === '2') return collectDevices(props.data || [])
    const collectLeaves = props.leafMode === 'device' ? collectDeviceApiLeaves : collectDeviceLeaves
    const { govern, portable, monitor } = collectLeaves(
        zlDevList.value,
        bxsDeviceData.value,
        frontDeviceData.value
    )
    return [...govern, ...portable, ...monitor]
})

const deviceStats = computed(() => {
    const list = deviceList.value
    const total = list.length
    const normal = list.filter(isCommNormal).length
    return { total, normal, abnormal: total - normal }
})

const commTabs = computed(() => [
    { key: 'all' as const, label: '全部设备', count: deviceStats.value.total, icon: 'el-icon-Platform' },
    { key: 'normal' as const, label: '通讯正常', count: deviceStats.value.normal, icon: 'el-icon-Platform' },
    { key: 'abnormal' as const, label: '通讯异常', count: deviceStats.value.abnormal, icon: 'el-icon-Platform' }
])

function applyTreeFilter() {
    nextTick(() => {
        const val = filterText.value
        if (treeType.value === '1') {
            treeRef1.value?.filter(val)
            treeRef2.value?.filter(val)
            treeRef3.value?.filter(val)
        } else {
            treeRef4.value?.filter(val)
        }
    })
}

const onCommFilter = (key: CommFilter) => {
    commFilter.value = key
    applyTreeFilter()
}

function splitTreeData(val: any[]) {
    zlDeviceData.value = []
    bxsDeviceData.value = []
    frontDeviceData.value = []

    val.forEach(item => {
        if (item.name === '治理设备') {
            zlDeviceData.value = item.children ?? []
        } else if (item.name === '便携式设备') {
            bxsDeviceData.value = item.children ?? []
        } else if (item.name === '监测设备') {
            frontDeviceData.value = item.children ?? []
        }
    })

    zlDevList.value = filterProcess(JSON.parse(JSON.stringify(zlDeviceData.value)))
}

function filterProcess(nodes: any[]): any[] {
    if (!process.value) return nodes

    return nodes
        .map(node => {
            const children = node.children ? filterProcess(node.children) : []
            if (node.process == process.value || children.length > 0) {
                return { ...node, children }
            }
            return null
        })
        .filter(Boolean)
}

function getActiveTreeRef() {
    if (treeType.value === '2') return treeRef4.value
    if (activeName.value === '0') return treeRef1.value
    if (activeName.value === '1') return treeRef2.value
    return treeRef3.value
}

function forwardNodeClick(data: any, node: any, ev?: any) {
    const handler = (attrs as any).onNodeClick
    if (!handler) return
    if (Array.isArray(handler)) handler.forEach((fn: any) => fn?.(data, node, ev))
    else handler(data, node, ev)
}

function onTreeNodeClick(data: any, node: any, ev?: any) {
    forwardNodeClick(data, node, ev)
}

function resolveActiveName() {
    if (zlDeviceData.value.length) return '0'
    if (bxsDeviceData.value.length) return '1'
    if (frontDeviceData.value.length) return '2'
    return ''
}

function selectDevicePanel(panelName: string, node?: any) {
    if (!node) return
    emit('changeDeviceType', panelName, node)
    nextTick(() => {
        getActiveTreeRef()?.setCurrentKey(node.id)
    })
}

const changeDevice = (val: CollapseModelValue) => {
    if (Array.isArray(val) || val == null || val === '') return
    const panelName = String(val)
    const collectLeaves = props.leafMode === 'device' ? collectDeviceApiLeaves : collectDeviceLeaves
    const { govern, portable, monitor } = collectLeaves(
        zlDevList.value,
        bxsDeviceData.value,
        frontDeviceData.value
    )

    const panelMap: Record<string, { nodes: any[]; clearOthers: any[][] }> = {
        '0': { nodes: govern, clearOthers: [portable, monitor] },
        '1': { nodes: portable, clearOthers: [govern, monitor] },
        '2': { nodes: monitor, clearOthers: [govern, portable] }
    }

    const panel = panelMap[panelName]
    if (!panel) return

    panel.clearOthers.forEach(list => list.forEach(item => (item.checked = false)))
    selectDevicePanel(panelName, panel.nodes[0])
}

const setActiveName = () => {
    activeName.value = resolveActiveName()
    if (activeName.value) {
        nextTick(() => changeDevice(activeName.value))
    }
}

watch(
    () => props.data,
    val => {
        if (!val?.length) return
        splitTreeData(val)
        if (treeType.value === '1') {
            nextTick(() => setActiveName())
        }
        applyTreeFilter()
    },
    { immediate: true, deep: true }
)

watch(filterText, () => {
    applyTreeFilter()
})

watch(process, () => {
    zlDevList.value = filterProcess(JSON.parse(JSON.stringify(zlDeviceData.value)))
    if (activeName.value === '0') {
        nextTick(() => changeDevice(activeName.value))
    }
    applyTreeFilter()
})

watch(treeType, () => {
    applyTreeFilter()
})

const onMenuCollapse = () => {
    menuCollapse.value = !menuCollapse.value
    proxy.eventBus.emit('cnTreeCollapse', menuCollapse)
}

const filterNode = (_value: string, data: any, node: any): boolean => {
    if (filterText.value) {
        if (!data.name) return false
        if (!chooseNode(filterText.value, data, node)) return false
    }

    if (commFilter.value === 'all') return true

    if (isDeviceLeaf(data)) {
        const normal = isCommNormal(data)
        return commFilter.value === 'normal' ? normal : !normal
    }

    return !!filterText.value
}

const chooseNode = (value: string, data: any, node: any): boolean => {
    if (data.name.indexOf(value) !== -1) return true

    const level = node.level
    if (level === 1) return false

    let parentData = node.parent
    for (let i = 0; i < level - 1; i++) {
        if (parentData?.data?.name?.indexOf(value) !== -1) return true
        parentData = parentData.parent
    }
    return false
}

const changeTreeType = (val: string) => {
    loading.value = true
    emit('changeTreeType', val)
    if (val === '1') {
        nextTick(() => setActiveName())
    }
    setTimeout(() => {
        loading.value = false
    }, 300)
}

onMounted(() => {
    // treeType.value = props.engineering ? '2' : '1'
})
</script>

<style lang="scss" scoped>
.device-tree-root {
    display: flex;
    overflow: hidden;
    height: 100%;
    min-height: 0;
}

.cn-tree {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    padding: 10px;
    height: 100%;
    min-height: 0;
    max-height: 100%;
    width: 100%;
    overflow: hidden;

    :deep(.el-tree) {
        border: 1px solid var(--el-border-color);
    }

    :deep(.el-tree--highlight-current .el-tree-node.is-current > .el-tree-node__content) {
        background-color: var(--el-color-primary-light-7);
    }

    .tree-search {
        display: flex;
        align-items: center;
        flex-shrink: 0;
    }

    .comm-tabs {
        display: flex;
        align-items: center;
        // justify-content: flex-end;
        gap: 6px;
        flex-shrink: 0;
    }

    .comm-tab {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        height: 22px;
        padding: 0 4px 0 6px;
        border-radius: 6px;
        border: 1px solid #e5eaf3;
        background: #fff;
        color: #4e5969;
        cursor: pointer;
        transition: all 0.15s ease;
        line-height: 1;

        &__icon {
            font-size: 12px;
        }

        &.is-all .comm-tab__icon,
        &.is-all :deep(.comm-tab__icon),
        &.is-all :deep(svg),
        &.is-all :deep(i) {
            color: var(--el-color-primary) !important;
        }

        &.is-normal .comm-tab__icon,
        &.is-normal :deep(.comm-tab__icon),
        &.is-normal :deep(svg),
        &.is-normal :deep(i) {
            color: #2ab914 !important;
        }

        &.is-abnormal .comm-tab__icon,
        &.is-abnormal :deep(.comm-tab__icon),
        &.is-abnormal :deep(svg),
        &.is-abnormal :deep(i) {
            color: #e26257 !important;
        }

        &__count {
            min-width: 20px;
            height: 16px;
            padding: 0 4px;
            border-radius: 4px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 11px;
            font-weight: 600;
            font-variant-numeric: tabular-nums;
            color: #1d2129;
        }

        &:hover:not(.is-active) {
            border-color: var(--el-color-primary-light-5);
            color: var(--el-color-primary);
        }

        &.is-active {
            color: #fff;

            .comm-tab__icon,
            :deep(.comm-tab__icon),
            :deep(svg),
            :deep(i) {
                color: #fff !important;
            }

            .comm-tab__count {
                background: #fff;
            }
        }

        &.is-all.is-active {
            background: var(--el-color-primary);
            border-color: var(--el-color-primary);

            .comm-tab__count {
                color: var(--el-color-primary);
            }
        }

        &.is-normal.is-active {
            background: #2ab914;
            border-color: #2ab914;

            .comm-tab__count {
                color: #2ab914;
            }
        }

        &.is-abnormal.is-active {
            background: #e26257;
            border-color: #e26257;

            .comm-tab__count {
                color: #e26257;
            }
        }
    }

    .device-collapse {
        flex: 1;
        min-height: 0;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        border: none;

        :deep(.el-collapse-item) {
            flex-shrink: 0;

            .el-collapse-item__header {
                height: 48px;
                line-height: 48px;
            }

            &.is-active {
                flex: 1;
                min-height: 0;
                display: flex;
                flex-direction: column;
                overflow: hidden;

                .el-collapse-item__wrap {
                    flex: 1;
                    min-height: 0;
                }

                .el-collapse-item__content {
                    display: flex;
                    flex-direction: column;
                    height: 100%;
                    min-height: 0;
                    padding-bottom: 0;
                    box-sizing: border-box;
                }
            }
        }
    }

    .engineering-tree-wrap {
        flex: 1;
        min-height: 0;
        overflow: hidden;
        display: flex;
        flex-direction: column;
    }

    .engineering-tree {
        flex: 1;
        min-height: 0;
        overflow: auto;
    }

    .collapse-tree-panel {
        display: flex;
        flex-direction: column;
        flex: 1;
        min-height: 0;
        height: 100%;
        overflow: hidden;

        &--govern > .el-select {
            flex-shrink: 0;
        }
    }

    .collapse-tree {
        flex: 1;
        min-height: 0;
        overflow: auto;
    }

    .menu-collapse {
        color: var(--el-color-primary);
    }
}

.custom-tree-node {
    display: flex;
    align-items: center;
}
:deep(.el-input-group__prepend) {
    background-color: var(--el-fill-color-blank);
}
:deep(.is-disabled) {
    display: none !important;
}
</style>
