<script setup lang="ts">
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import { computed, onMounted, ref } from "vue";
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import { DownloadOutlined, FileImageOutlined, FileOutlined, PlayCircleOutlined, UploadOutlined } from "@ant-design/icons-vue";
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import { artifactUrl, createChangeRunFromUploads, uploadChangeFile, type ChangeCase, type ChangeFeature } from "@/api/artifacts";
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import ArtifactState from "@/components/ArtifactState.vue";
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import { useArtifactStore } from "@/stores/artifacts";
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const store = useArtifactStore();
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const caseId = ref("");
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const beforeFile = ref<File | null>(null);
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const afterFile = ref<File | null>(null);
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const threshold = ref(0.5);
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const processingMode = ref<"auto" | "image" | "geotiff">("auto");
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const maxDimension = ref(0);
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const showRunForm = ref(false);
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const running = ref(false);
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const runError = ref<string | null>(null);
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const searchText = ref("");
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const currentCase = computed<ChangeCase | undefined>(() => store.changeCases[caseId.value] ?? Object.values(store.changeCases)[0]);
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const caseOptions = computed(() => Object.values(store.changeCases).map((item) => ({ value: item.id, label: item.label })));
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const filteredCaseOptions = computed(() => caseOptions.value.filter((item) => item.label.toLowerCase().includes(searchText.value.trim().toLowerCase())));
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const changePercent = computed(() => ((currentCase.value?.run.changed_pixel_ratio ?? 0) * 100).toFixed(3));
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const validPercent = computed(() => ((currentCase.value?.run.valid_pixel_ratio ?? 0) * 100).toFixed(2));
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function updateThreshold(value: number | null | undefined) {
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const parsed = Number(value);
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threshold.value = Number.isFinite(parsed) ? Math.min(0.99, Math.max(0.01, parsed)) : 0.5;
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}
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function updateMaxDimension(value: number | null | undefined) {
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const parsed = Number(value);
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maxDimension.value = [0, 1024, 1536, 2048, 3072].includes(parsed) ? parsed : 0;
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}
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function updateProcessingMode(value: string | null | undefined) {
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if (value !== "auto" && value !== "image" && value !== "geotiff") return;
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processingMode.value = value;
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if (value === "geotiff") maxDimension.value = 0;
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if (value === "image" && maxDimension.value === 0) maxDimension.value = 1024;
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}
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function beforeUpload(file: File, period: "before" | "after") {
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if (period === "before") beforeFile.value = file; else afterFile.value = file;
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return false;
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}
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const selectBefore = (file: File) => beforeUpload(file, "before");
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const selectAfter = (file: File) => beforeUpload(file, "after");
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function featureRings(feature: ChangeFeature): number[][][] {
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if (feature.geometry.type === "Polygon") return feature.geometry.coordinates as number[][][];
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if (feature.geometry.type === "MultiPolygon") return (feature.geometry.coordinates as number[][][][]).flat();
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return [];
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}
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const vectorPaths = computed(() => {
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const height = currentCase.value?.run.input_shape[0] ?? 1;
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return (currentCase.value?.features ?? []).flatMap(featureRings).map((ring) => ring.map((point, index) => `${index ? "L" : "M"}${point[0]},${height - point[1]}`).join(" ") + " Z");
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});
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async function submitRun() {
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if (!beforeFile.value || !afterFile.value) { runError.value = "请分别选择第一期和第二期影像。"; return; }
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running.value = true; runError.value = null;
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try {
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const [before, after] = await Promise.all([uploadChangeFile(beforeFile.value, "before"), uploadChangeFile(afterFile.value, "after")]);
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const { run } = await createChangeRunFromUploads({ before, after }, threshold.value, maxDimension.value, processingMode.value);
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await store.loadChange(true); caseId.value = run.id; beforeFile.value = null; afterFile.value = null; showRunForm.value = false;
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} catch (error) { runError.value = error instanceof Error ? error.message : "变化检测运行失败"; }
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finally { running.value = false; }
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}
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onMounted(async () => { await store.loadChange(); caseId.value = Object.keys(store.changeCases)[0] ?? ""; });
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</script>
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<template>
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<ArtifactState :loading="store.loading" :error="store.error" />
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<section class="workspace-command change-command"><div><h2>新建变化检测运行</h2><p>上传同一场景的两期影像，在本机 CPU 上生成变化栅格和像素坐标图斑。</p></div><a-button type="primary" @click="showRunForm = !showRunForm"><PlayCircleOutlined />{{ showRunForm ? "收起运行表单" : "上传并运行" }}</a-button></section>
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<section v-if="showRunForm" class="surface-section change-run-form">
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<a-alert type="warning" show-icon message="普通 JPG 会先做特征配准；工程验收应使用同 CRS、同 GSD 的正射 GeoTIFF。" />
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<div class="change-upload-grid">
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<div><label>第一期影像</label><a-upload accept=".jpg,.jpeg,.png,.tif,.tiff" :show-upload-list="false" :before-upload="selectBefore"><a-button><UploadOutlined />选择第一期</a-button></a-upload><span>{{ beforeFile?.name || "未选择" }}</span></div>
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<div><label>第二期影像</label><a-upload accept=".jpg,.jpeg,.png,.tif,.tiff" :show-upload-list="false" :before-upload="selectAfter"><a-button><UploadOutlined />选择第二期</a-button></a-upload><span>{{ afterFile?.name || "未选择" }}</span></div>
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</div>
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<div class="resolution-control"><label for="change-mode">处理模式</label><a-select id="change-mode" :value="processingMode" @update:value="updateProcessingMode"><a-select-option value="auto">自动识别</a-select-option><a-select-option value="image">普通图片</a-select-option><a-select-option value="geotiff">GeoTIFF 地理参考</a-select-option></a-select><span>自动模式会识别带 CRS 的 GeoTIFF；普通图片输出像素坐标，GeoTIFF 模式保留空间参考。</span></div>
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<div class="threshold-control"><label for="change-threshold">变化阈值</label><div class="threshold-inputs"><a-slider id="change-threshold" :value="threshold" @update:value="updateThreshold" :min="0.01" :max="0.99" :step="0.01" /><a-input-number :value="threshold" @update:value="updateThreshold" :min="0.01" :max="0.99" :step="0.01" :precision="2" /></div><span>本次运行使用 {{ threshold.toFixed(2) }}；默认值为 0.50</span></div>
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<div class="resolution-control"><label for="change-resolution">处理分辨率</label><a-select id="change-resolution" :value="maxDimension" @update:value="updateMaxDimension"><a-select-option :value="0">GeoTIFF 原始分辨率 / 自动</a-select-option><a-select-option :value="1024">快速预览 · 1024 px</a-select-option><a-select-option :value="1536">标准 · 1536 px</a-select-option><a-select-option :value="2048">小目标优先 · 2048 px</a-select-option><a-select-option :value="3072">高细节 · 3072 px</a-select-option></a-select><span v-if="maxDimension === 0">GeoTIFF 保持原始像素尺寸；普通图片自动使用 1024 px。</span><span v-else>本次运行使用 {{ maxDimension }} px 长边上限；分辨率越高，CPU 耗时和内存占用越大。</span></div>
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<a-alert v-if="runError" type="error" show-icon :message="runError" />
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<a-button type="primary" :loading="running" :disabled="!beforeFile || !afterFile" @click="submitRun"><PlayCircleOutlined />开始检测</a-button>
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</section>
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<template v-if="currentCase">
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<a-row :gutter="[18, 18]" class="change-workspace">
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<a-col :xs="24" :xl="5"><section class="surface-section run-library"><h2>案例库</h2><a-input-search v-model:value="searchText" placeholder="搜索运行" allow-clear /><a-list size="small" :data-source="filteredCaseOptions"><template #renderItem="{ item }"><a-list-item class="run-item" :class="{ active: item.value === currentCase.id }" @click="caseId = item.value">{{ item.label }}</a-list-item></template></a-list></section></a-col>
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<a-col :xs="24" :xl="19"><section class="surface-section"><div class="section-heading"><div><h2>双期与栅格结果</h2><p>{{ currentCase.run.input_shape[1] }} x {{ currentCase.run.input_shape[0] }} 像素，处理尺寸 {{ currentCase.run.processed_shape[1] }} x {{ currentCase.run.processed_shape[0] }}</p></div><a-tag color="green">CPU {{ currentCase.run.elapsed_seconds }} 秒</a-tag></div><div class="change-comparison"><figure><figcaption>第一期</figcaption><a-image :src="artifactUrl(currentCase.beforeImage)" /></figure><figure><figcaption>第二期</figcaption><a-image :src="artifactUrl(currentCase.afterImage)" /></figure><figure><figcaption>变化栅格叠加</figcaption><a-image :src="artifactUrl(`${currentCase.artifactRoot}/${currentCase.run.artifacts.overlay}`)" /></figure></div></section></a-col>
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</a-row>
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<a-row :gutter="[18, 18]" class="metric-row change-metrics"><a-col :xs="12" :lg="6"><a-statistic title="变化像素" :value="currentCase.run.changed_pixels" /></a-col><a-col :xs="12" :lg="6"><a-statistic title="变化比例" :value="changePercent" suffix="%" /></a-col><a-col :xs="12" :lg="6"><a-statistic title="变化图斑" :value="currentCase.run.vector_feature_count" /></a-col><a-col :xs="12" :lg="6"><a-statistic title="配准有效区" :value="validPercent" suffix="%" /></a-col></a-row>
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<a-row :gutter="[18, 18]" class="result-band"><a-col :xs="24" :xl="14"><section class="surface-section"><div class="section-heading"><div><h2>矢量图斑</h2><p>像素坐标结果；红线叠加已换算为图像左上角显示坐标。</p></div><a-tag>{{ currentCase.run.vector_feature_count }} 个</a-tag></div><div class="change-vector"><img :src="artifactUrl(currentCase.afterImage)" alt="第二期影像" /><svg v-if="vectorPaths.length" :viewBox="`0 0 ${currentCase.run.input_shape[1]} ${currentCase.run.input_shape[0]}`" preserveAspectRatio="xMidYMid meet"><path v-for="(path, index) in vectorPaths" :key="index" :d="path" /></svg><a-empty v-else description="当前阈值下没有变化图斑" /></div></section></a-col><a-col :xs="24" :xl="10"><section class="surface-section"><h2>图斑明细</h2><a-table :data-source="currentCase.features.map((item) => item.properties)" :pagination="false" row-key="feature_id" size="small" :scroll="{ x: 480 }"><a-table-column title="编号" data-index="feature_id" key="feature_id" /><a-table-column title="面积 (px)" data-index="area_pixels" key="area_pixels" align="right" /><a-table-column title="平均概率" data-index="mean_probability" key="mean_probability" align="right" /><a-table-column title="最大概率" data-index="max_probability" key="max_probability" align="right" /></a-table><a-divider /><a-descriptions size="small" :column="1"><a-descriptions-item label="模型">{{ currentCase.run.model }}</a-descriptions-item><a-descriptions-item label="阈值">{{ currentCase.run.thresholds.change_probability }}</a-descriptions-item><a-descriptions-item label="模式">{{ currentCase.run.processing_mode === "geotiff" ? "GeoTIFF 地理参考" : "普通图片像素坐标" }}</a-descriptions-item><a-descriptions-item label="配准">{{ currentCase.run.registration.method }} / {{ currentCase.run.registration.inliers }} 内点</a-descriptions-item><a-descriptions-item label="坐标">{{ currentCase.run.georeferenced ? `${currentCase.run.crs} 地图坐标` : "无 CRS，像素坐标" }}</a-descriptions-item></a-descriptions></section></a-col></a-row>
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<section class="surface-section result-files change-files"><a-space wrap><a-button :href="artifactUrl(`${currentCase.artifactRoot}/${currentCase.run.artifacts.probability_raster}`)" download><DownloadOutlined />概率 GeoTIFF</a-button><a-button :href="artifactUrl(`${currentCase.artifactRoot}/${currentCase.run.artifacts.mask_raster}`)" download><FileImageOutlined />变化栅格</a-button><a-button :href="artifactUrl(`${currentCase.artifactRoot}/${currentCase.run.artifacts.vector}`)" download><FileOutlined />变化 GeoJSON</a-button><a-button :href="artifactUrl(`${currentCase.artifactRoot}/run_metadata.json`)" download><FileOutlined />运行元数据</a-button></a-space></section>
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<a-alert class="change-limit" type="warning" show-icon message="当前近景边坡样本不在 ChangeStar 建筑变化权重的验证分布内；结果只能用于工作流与人工复核，不能直接形成工程结论。" />
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</template>
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</template>
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<style scoped>
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.change-run-form { display: grid; gap: 16px; margin-bottom: 24px; }
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.change-upload-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
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.change-upload-grid > div { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 8px 12px; padding: 14px; background: #f7f9f7; border: 1px solid var(--wb-border); }
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.change-upload-grid label { grid-column: 1 / -1; color: var(--wb-muted); font-size: 12px; }
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.change-upload-grid span { min-width: 0; overflow: hidden; color: var(--wb-text); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
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.threshold-control { display: grid; gap: 8px; padding: 12px 14px; background: #f7f9f7; border: 1px solid var(--wb-border); }
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.threshold-control label { color: var(--wb-muted); font-size: 12px; font-weight: 700; }
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.threshold-inputs { display: grid; grid-template-columns: minmax(0, 1fr) 110px; align-items: center; gap: 16px; }
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.threshold-control > span { color: var(--wb-muted); font-size: 12px; }
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.change-workspace { align-items: stretch; margin-bottom: 24px; }
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.change-workspace > :deep(.ant-col) { display: flex; }
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.change-workspace .surface-section { width: 100%; }
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.change-workspace .run-library { align-self: flex-start; max-height: clamp(420px, calc(100vh - 260px), 620px); }
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.change-comparison { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
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.change-comparison figure { min-width: 0; margin: 0; }
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.change-comparison figcaption { margin-bottom: 7px; color: #425148; font-size: 12px; font-weight: 700; }
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.change-comparison :deep(.ant-image), .change-comparison :deep(img) { width: 100%; }
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.change-comparison :deep(img) { height: 310px; object-fit: contain; background: #202b25; }
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.change-vector { position: relative; min-height: 360px; overflow: hidden; background: #202b25; }
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.change-vector > img { display: block; width: 100%; height: 430px; object-fit: contain; }
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.change-vector > svg { position: absolute; inset: 0; width: 100%; height: 100%; }
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.change-vector path { fill: rgba(232, 61, 49, 0.23); stroke: #e83d31; stroke-width: 7; vector-effect: non-scaling-stroke; }
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.change-vector :deep(.ant-empty) { position: absolute; inset: 0; display: grid; align-content: center; margin: 0; background: rgba(32, 43, 37, 0.72); }
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.change-vector :deep(.ant-empty-description) { color: #f7faf8; }
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.change-files { margin-bottom: 16px; }
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.change-limit { margin-bottom: 24px; }
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@media (max-width: 1199px) { .change-workspace > :deep(.ant-col) { display: block; } .change-workspace .run-library { max-height: none; } }
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@media (max-width: 760px) { .change-upload-grid, .change-comparison { grid-template-columns: 1fr; } .change-comparison :deep(img) { height: 280px; } .change-vector > img { height: 340px; } }
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@media (max-width: 480px) { .threshold-inputs { grid-template-columns: 1fr; gap: 4px; } .threshold-inputs :deep(.ant-input-number) { width: 100%; } }
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</style>
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