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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 | import { Injectable, NotFoundException, Logger } from '@nestjs/common'; import { InjectModel } from '@nestjs/mongoose'; import { Model } from 'mongoose'; import { WidgetDefinition, DashboardDefinition, DashboardLayout, DashboardWidgetInstance, WidgetDataCache, } from './schemas/widget.schema'; import { WidgetDataProvider } from './widget-data-provider.interface'; @Injectable() export class WidgetService { private readonly logger = new Logger(WidgetService.name); private readonly dataProviders = new Map<string, WidgetDataProvider>(); constructor( @InjectModel(WidgetDefinition.name) private readonly widgetDefModel: Model<WidgetDefinition>, @InjectModel(DashboardDefinition.name) private readonly dashboardModel: Model<DashboardDefinition>, @InjectModel(DashboardLayout.name) private readonly layoutModel: Model<DashboardLayout>, @InjectModel(DashboardWidgetInstance.name) private readonly widgetInstanceModel: Model<DashboardWidgetInstance>, @InjectModel(WidgetDataCache.name) private readonly cacheModel: Model<WidgetDataCache>, ) {} registerDataProvider(provider: WidgetDataProvider) { this.dataProviders.set(provider.widgetKey, provider); this.logger.log(`Registered widget data provider: ${provider.widgetKey}`); } // ============================================================ // WIDGET CATALOG // ============================================================ async getCatalog(): Promise<any[]> { return this.widgetDefModel.find({ isActive: true }).lean().exec(); } // ============================================================ // DASHBOARD CRUD // ============================================================ async getDashboards(tenantId: string, userId?: string): Promise<any[]> { const where: any = { tenantId }; // Return user dashboards + shared/default dashboards if (userId) { where.$or = [{ userId }, { userId: null, isDefault: true }]; } return this.dashboardModel.find(where).lean().exec(); } async createDashboard(params: { tenantId: string; userId?: string; name: string; scope?: string; role?: string; }): Promise<any> { const dashboard = await this.dashboardModel.create({ tenantId: params.tenantId, userId: params.userId || null, name: params.name, scope: params.scope || 'USER', role: params.role || null, }); const dashboardId = (dashboard as any)._id.toString(); // Create empty layout await this.layoutModel.create({ dashboardId, gridPositions: { desktop: [], tablet: [], mobile: [] }, }); return { ...dashboard.toObject(), id: dashboardId }; } async getDashboard(id: string, tenantId: string): Promise<any> { const dashboard = await this.dashboardModel .findOne({ _id: id, tenantId }) .lean() .exec(); if (!dashboard) throw new NotFoundException('Dashboard not found'); const [layout, widgets] = await Promise.all([ this.layoutModel.findOne({ dashboardId: id }).lean().exec(), this.widgetInstanceModel.find({ dashboardId: id }).lean().exec(), ]); return { ...dashboard, id: (dashboard as any)._id.toString(), layout, widgets, }; } async updateDashboard( id: string, tenantId: string, data: { name?: string }, ): Promise<any> { return this.dashboardModel .findOneAndUpdate({ _id: id, tenantId }, data, { new: true }) .lean() .exec(); } async updateLayout( dashboardId: string, tenantId: string, gridPositions: any, ): Promise<any> { // Verify dashboard belongs to tenant const dashboard = await this.dashboardModel .findOne({ _id: dashboardId, tenantId }) .lean() .exec(); if (!dashboard) throw new NotFoundException('Dashboard not found'); return this.layoutModel .findOneAndUpdate( { dashboardId }, { $set: { gridPositions } }, { upsert: true, new: true }, ) .lean() .exec(); } // ============================================================ // WIDGET INSTANCES // ============================================================ async addWidget( dashboardId: string, tenantId: string, widgetKey: string, config?: any, ): Promise<any> { const dashboard = await this.dashboardModel .findOne({ _id: dashboardId, tenantId }) .lean() .exec(); if (!dashboard) throw new NotFoundException('Dashboard not found'); return this.widgetInstanceModel.create({ dashboardId, widgetKey, config: config || {}, }); } async updateWidget( dashboardId: string, widgetId: string, data: any, ): Promise<any> { return this.widgetInstanceModel .findOneAndUpdate( { _id: widgetId, dashboardId }, { $set: data }, { new: true }, ) .lean() .exec(); } async removeWidget(dashboardId: string, widgetId: string): Promise<any> { await this.widgetInstanceModel .deleteOne({ _id: widgetId, dashboardId }) .exec(); return { success: true }; } // ============================================================ // WIDGET DATA // ============================================================ async getDashboardData( dashboardId: string, tenantId: string, timeRange?: string, ): Promise<any> { const widgets = await this.widgetInstanceModel .find({ dashboardId }) .lean() .exec(); const results: any[] = []; for (const widget of widgets) { // Check cache first const cached = await this.cacheModel .findOne({ tenantId, widgetKey: widget.widgetKey, expiresAt: { $gt: new Date() }, }) .lean() .exec(); if (cached) { results.push({ widgetKey: widget.widgetKey, data: cached.data, cached: true, }); continue; } // Fetch from provider const provider = this.dataProviders.get(widget.widgetKey); if (provider) { try { const data = await provider.fetchData(tenantId, widget.config, { timeRange, }); // Cache the result await this.cacheModel .findOneAndUpdate( { tenantId, widgetKey: widget.widgetKey }, { data, expiresAt: new Date( Date.now() + (widget.refreshIntervalSeconds || 300) * 1000, ), }, { upsert: true }, ) .exec(); results.push({ widgetKey: widget.widgetKey, data, cached: false }); } catch (err) { results.push({ widgetKey: widget.widgetKey, data: null, error: 'Failed to fetch data', }); } } else { results.push({ widgetKey: widget.widgetKey, data: null, error: 'No data provider registered', }); } } return { dashboardId, widgets: results }; } async cloneDashboard( id: string, tenantId: string, userId: string, newName: string, ): Promise<any> { const source = await this.getDashboard(id, tenantId); if (!source) throw new NotFoundException('Source dashboard not found'); const newDashboard = await this.createDashboard({ tenantId, userId, name: newName, scope: 'USER', }); const newId = newDashboard.id; // Clone layout if (source.layout) { await this.layoutModel .findOneAndUpdate( { dashboardId: newId }, { $set: { gridPositions: source.layout.gridPositions } }, ) .exec(); } // Clone widgets for (const widget of source.widgets || []) { await this.widgetInstanceModel.create({ dashboardId: newId, widgetKey: widget.widgetKey, config: widget.config, refreshIntervalSeconds: widget.refreshIntervalSeconds, savedFilters: widget.savedFilters, }); } return newDashboard; } async resetDashboard(id: string, tenantId: string): Promise<any> { const dashboard = await this.dashboardModel .findOne({ _id: id, tenantId }) .lean() .exec(); if (!dashboard) throw new NotFoundException('Dashboard not found'); await this.widgetInstanceModel.deleteMany({ dashboardId: id }).exec(); await this.layoutModel .findOneAndUpdate( { dashboardId: id }, { $set: { gridPositions: { desktop: [], tablet: [], mobile: [] } } }, ) .exec(); return { success: true }; } } |