Tipos de toma backend logic

water-api/sql/create_meter_types.sql

@@ -0,0 +1,81 @@
+-- ============================================================================
+-- Create meter_types table and add relationship to projects
+-- Meter types: LoRa, LoRaWAN, Grandes Consumidores
+-- ============================================================================
+
+-- Create meter_types table
+CREATE TABLE IF NOT EXISTS meter_types (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name VARCHAR(50) NOT NULL UNIQUE,
+  code VARCHAR(20) NOT NULL UNIQUE,
+  description TEXT,
+  is_active BOOLEAN DEFAULT true,
+  created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+  updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Insert default meter types
+INSERT INTO meter_types (name, code, description) VALUES
+  ('LoRa', 'LORA', 'Medidores con tecnología LoRa'),
+  ('LoRaWAN', 'LORAWAN', 'Medidores con tecnología LoRaWAN'),
+  ('Grandes Consumidores', 'GRANDES', 'Medidores para grandes consumidores')
+ON CONFLICT (code) DO NOTHING;
+
+-- Add meter_type_id column to projects table
+ALTER TABLE projects 
+ADD COLUMN IF NOT EXISTS meter_type_id UUID REFERENCES meter_types(id) ON DELETE SET NULL;
+
+-- Add index for better query performance
+CREATE INDEX IF NOT EXISTS idx_projects_meter_type_id ON projects(meter_type_id);
+
+-- Add comment
+COMMENT ON TABLE meter_types IS 'Catalog of meter types (LoRa, LoRaWAN, Grandes Consumidores)';
+COMMENT ON COLUMN projects.meter_type_id IS 'Default meter type for this project';
+
+-- ============================================================================
+-- Helper function to get meter type by code
+-- ============================================================================
+
+CREATE OR REPLACE FUNCTION get_meter_type_id(type_code VARCHAR)
+RETURNS UUID AS $$
+DECLARE
+  type_id UUID;
+BEGIN
+  SELECT id INTO type_id FROM meter_types WHERE code = type_code AND is_active = true;
+  RETURN type_id;
+END;
+$$ LANGUAGE plpgsql;
+
+-- ============================================================================
+-- Update trigger for updated_at
+-- ============================================================================
+
+CREATE OR REPLACE FUNCTION update_meter_types_updated_at()
+RETURNS TRIGGER AS $$
+BEGIN
+  NEW.updated_at = CURRENT_TIMESTAMP;
+  RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trigger_meter_types_updated_at
+  BEFORE UPDATE ON meter_types
+  FOR EACH ROW
+  EXECUTE FUNCTION update_meter_types_updated_at();
+
+-- ============================================================================
+-- Verify the changes
+-- ============================================================================
+
+-- Show meter types
+SELECT id, name, code, description, is_active FROM meter_types ORDER BY code;
+
+-- Show projects table structure
+SELECT 
+    column_name, 
+    data_type, 
+    is_nullable,
+    column_default
+FROM information_schema.columns 
+WHERE table_name = 'projects' 
+  AND column_name = 'meter_type_id';

water-api/src/controllers/meterType.controller.ts

@@ -0,0 +1,185 @@
+import { Request, Response } from 'express';
+import * as meterTypeService from '../services/meterType.service';
+
+/**
+ * GET /meter-types
+ * Get all active meter types
+ */
+export async function getAll(req: Request, res: Response): Promise<void> {
+  try {
+    const meterTypes = await meterTypeService.getAll();
+
+    res.status(200).json({
+      success: true,
+      data: meterTypes,
+    });
+  } catch (error) {
+    console.error('Error fetching meter types:', error);
+    res.status(500).json({
+      success: false,
+      error: 'Failed to fetch meter types',
+    });
+  }
+}
+
+/**
+ * GET /meter-types/:id
+ * Get a single meter type by ID
+ */
+export async function getById(req: Request, res: Response): Promise<void> {
+  try {
+    const { id } = req.params;
+    const meterType = await meterTypeService.getById(id);
+
+    if (!meterType) {
+      res.status(404).json({
+        success: false,
+        error: 'Meter type not found',
+      });
+      return;
+    }
+
+    res.status(200).json({
+      success: true,
+      data: meterType,
+    });
+  } catch (error) {
+    console.error('Error fetching meter type:', error);
+    res.status(500).json({
+      success: false,
+      error: 'Failed to fetch meter type',
+    });
+  }
+}
+
+/**
+ * GET /meter-types/code/:code
+ * Get a meter type by code
+ */
+export async function getByCode(req: Request, res: Response): Promise<void> {
+  try {
+    const { code } = req.params;
+    const meterType = await meterTypeService.getByCode(code);
+
+    if (!meterType) {
+      res.status(404).json({
+        success: false,
+        error: 'Meter type not found',
+      });
+      return;
+    }
+
+    res.status(200).json({
+      success: true,
+      data: meterType,
+    });
+  } catch (error) {
+    console.error('Error fetching meter type:', error);
+    res.status(500).json({
+      success: false,
+      error: 'Failed to fetch meter type',
+    });
+  }
+}
+
+/**
+ * POST /meter-types
+ * Create a new meter type (ADMIN only)
+ */
+export async function create(req: Request, res: Response): Promise<void> {
+  try {
+    const { name, code, description } = req.body;
+
+    if (!name || !code) {
+      res.status(400).json({
+        success: false,
+        error: 'Name and code are required',
+      });
+      return;
+    }
+
+    const meterType = await meterTypeService.create({
+      name,
+      code,
+      description,
+    });
+
+    res.status(201).json({
+      success: true,
+      data: meterType,
+    });
+  } catch (error) {
+    console.error('Error creating meter type:', error);
+    res.status(500).json({
+      success: false,
+      error: 'Failed to create meter type',
+    });
+  }
+}
+
+/**
+ * PUT /meter-types/:id
+ * Update a meter type (ADMIN only)
+ */
+export async function update(req: Request, res: Response): Promise<void> {
+  try {
+    const { id } = req.params;
+    const { name, code, description, is_active } = req.body;
+
+    const meterType = await meterTypeService.update(id, {
+      name,
+      code,
+      description,
+      is_active,
+    });
+
+    if (!meterType) {
+      res.status(404).json({
+        success: false,
+        error: 'Meter type not found',
+      });
+      return;
+    }
+
+    res.status(200).json({
+      success: true,
+      data: meterType,
+    });
+  } catch (error) {
+    console.error('Error updating meter type:', error);
+    res.status(500).json({
+      success: false,
+      error: 'Failed to update meter type',
+    });
+  }
+}
+
+/**
+ * DELETE /meter-types/:id
+ * Soft delete a meter type (ADMIN only)
+ */
+export async function remove(req: Request, res: Response): Promise<void> {
+  try {
+    const { id } = req.params;
+    const success = await meterTypeService.remove(id);
+
+    if (!success) {
+      res.status(404).json({
+        success: false,
+        error: 'Meter type not found',
+      });
+      return;
+    }
+
+    res.status(200).json({
+      success: true,
+      message: 'Meter type deleted successfully',
+    });
+  } catch (error) {
+    console.error('Error deleting meter type:', error);
+    res.status(500).json({
+      success: false,
+      error: 'Failed to delete meter type',
+    });
+  }
+}

water-api/src/routes/index.ts

@@ -4,6 +4,7 @@ import { Router } from 'express';
 import authRoutes from './auth.routes';
 import projectRoutes from './project.routes';
 import meterRoutes from './meter.routes';
+import meterTypeRoutes from './meterType.routes';
 import concentratorRoutes from './concentrator.routes';
 import gatewayRoutes from './gateway.routes';
 import deviceRoutes from './device.routes';
@@ -52,6 +53,17 @@ router.use('/projects', projectRoutes);
  */
 router.use('/meters', meterRoutes);
 
+/**
+ * Meter Type routes:
+ * - GET /meter-types - List all meter types
+ * - GET /meter-types/:id - Get meter type by ID
+ * - GET /meter-types/code/:code - Get meter type by code
+ * - POST /meter-types - Create meter type (admin only)
+ * - PUT /meter-types/:id - Update meter type (admin only)
+ * - DELETE /meter-types/:id - Delete meter type (admin only)
+ */
+router.use('/meter-types', meterTypeRoutes);
+
 /**
  * Concentrator routes:
  * - GET /concentrators - List all concentrators

water-api/src/routes/meterType.routes.ts

@@ -0,0 +1,64 @@
+import { Router } from 'express';
+import * as meterTypeController from '../controllers/meterType.controller';
+import { authenticateToken, requireRole } from '../middleware/auth.middleware';
+
+const router = Router();
+
+/**
+ * @route   GET /api/meter-types
+ * @desc    Get all active meter types
+ * @access  Private (any authenticated user)
+ */
+router.get('/', authenticateToken, meterTypeController.getAll);
+
+/**
+ * @route   GET /api/meter-types/code/:code
+ * @desc    Get a meter type by code
+ * @access  Private (any authenticated user)
+ */
+router.get('/code/:code', authenticateToken, meterTypeController.getByCode);
+
+/**
+ * @route   GET /api/meter-types/:id
+ * @desc    Get a single meter type by ID
+ * @access  Private (any authenticated user)
+ */
+router.get('/:id', authenticateToken, meterTypeController.getById);
+
+/**
+ * @route   POST /api/meter-types
+ * @desc    Create a new meter type
+ * @access  Private (ADMIN only)
+ */
+router.post(
+  '/',
+  authenticateToken,
+  requireRole('ADMIN'),
+  meterTypeController.create
+);
+
+/**
+ * @route   PUT /api/meter-types/:id
+ * @desc    Update a meter type
+ * @access  Private (ADMIN only)
+ */
+router.put(
+  '/:id',
+  authenticateToken,
+  requireRole('ADMIN'),
+  meterTypeController.update
+);
+
+/**
+ * @route   DELETE /api/meter-types/:id
+ * @desc    Soft delete a meter type
+ * @access  Private (ADMIN only)
+ */
+router.delete(
+  '/:id',
+  authenticateToken,
+  requireRole('ADMIN'),
+  meterTypeController.remove
+);
+
+export default router;

water-api/src/services/meterType.service.ts

@@ -0,0 +1,142 @@
+import { query } from '../config/database';
+import { MeterType } from '../types';
+
+/**
+ * Get all meter types
+ * @returns Promise resolving to array of meter types
+ */
+export async function getAll(): Promise<MeterType[]> {
+  const result = await query<MeterType>(
+    `SELECT id, name, code, description, is_active, created_at, updated_at
+     FROM meter_types
+     WHERE is_active = true
+     ORDER BY code ASC`
+  );
+
+  return result.rows;
+}
+
+/**
+ * Get a single meter type by ID
+ * @param id - Meter type ID
+ * @returns Promise resolving to meter type or null if not found
+ */
+export async function getById(id: string): Promise<MeterType | null> {
+  const result = await query<MeterType>(
+    `SELECT id, name, code, description, is_active, created_at, updated_at
+     FROM meter_types
+     WHERE id = $1`,
+    [id]
+  );
+
+  return result.rows[0] || null;
+}
+
+/**
+ * Get a meter type by code
+ * @param code - Meter type code (LORA, LORAWAN, GRANDES)
+ * @returns Promise resolving to meter type or null if not found
+ */
+export async function getByCode(code: string): Promise<MeterType | null> {
+  const result = await query<MeterType>(
+    `SELECT id, name, code, description, is_active, created_at, updated_at
+     FROM meter_types
+     WHERE code = $1 AND is_active = true`,
+    [code]
+  );
+
+  return result.rows[0] || null;
+}
+
+/**
+ * Create a new meter type
+ * @param data - Meter type data
+ * @returns Promise resolving to created meter type
+ */
+export async function create(data: {
+  name: string;
+  code: string;
+  description?: string | null;
+}): Promise<MeterType> {
+  const result = await query<MeterType>(
+    `INSERT INTO meter_types (name, code, description)
+     VALUES ($1, $2, $3)
+     RETURNING id, name, code, description, is_active, created_at, updated_at`,
+    [data.name, data.code, data.description || null]
+  );
+
+  return result.rows[0];
+}
+
+/**
+ * Update a meter type
+ * @param id - Meter type ID
+ * @param data - Fields to update
+ * @returns Promise resolving to updated meter type or null if not found
+ */
+export async function update(
+  id: string,
+  data: {
+    name?: string;
+    code?: string;
+    description?: string | null;
+    is_active?: boolean;
+  }
+): Promise<MeterType | null> {
+  const updates: string[] = [];
+  const params: unknown[] = [];
+  let paramIndex = 1;
+
+  if (data.name !== undefined) {
+    updates.push(`name = $${paramIndex}`);
+    params.push(data.name);
+    paramIndex++;
+  }
+
+  if (data.code !== undefined) {
+    updates.push(`code = $${paramIndex}`);
+    params.push(data.code);
+    paramIndex++;
+  }
+
+  if (data.description !== undefined) {
+    updates.push(`description = $${paramIndex}`);
+    params.push(data.description);
+    paramIndex++;
+  }
+
+  if (data.is_active !== undefined) {
+    updates.push(`is_active = $${paramIndex}`);
+    params.push(data.is_active);
+    paramIndex++;
+  }
+
+  if (updates.length === 0) {
+    return getById(id);
+  }
+
+  params.push(id);
+  const result = await query<MeterType>(
+    `UPDATE meter_types
+     SET ${updates.join(', ')}
+     WHERE id = $${paramIndex}
+     RETURNING id, name, code, description, is_active, created_at, updated_at`,
+    params
+  );
+
+  return result.rows[0] || null;
+}
+
+/**
+ * Delete a meter type (soft delete by setting is_active to false)
+ * @param id - Meter type ID
+ * @returns Promise resolving to boolean indicating success
+ */
+export async function remove(id: string): Promise<boolean> {
+  const result = await query(
+    `UPDATE meter_types SET is_active = false WHERE id = $1`,
+    [id]
+  );
+
+  return result.rowCount ? result.rowCount > 0 : false;
+}

water-api/src/services/project.service.ts

@@ -103,7 +103,7 @@ export async function getAll(
 
   // Get paginated data
   const dataQuery = `
-    SELECT id, name, description, area_name, location, status, created_by, created_at, updated_at
+    SELECT id, name, description, area_name, location, status, meter_type_id, created_by, created_at, updated_at
     FROM projects
     ${whereClause}
     ORDER BY created_at DESC
@@ -131,7 +131,7 @@ export async function getAll(
  */
 export async function getById(id: string): Promise<Project | null> {
   const result = await query<Project>(
-    `SELECT id, name, description, area_name, location, status, created_by, created_at, updated_at
+    `SELECT id, name, description, area_name, location, status, meter_type_id, created_by, created_at, updated_at
      FROM projects
      WHERE id = $1`,
     [id]
@@ -148,15 +148,16 @@ export async function getById(id: string): Promise<Project | null> {
  */
 export async function create(data: CreateProjectInput, userId: string): Promise<Project> {
   const result = await query<Project>(
-    `INSERT INTO projects (name, description, area_name, location, status, created_by)
-     VALUES ($1, $2, $3, $4, $5, $6)
-     RETURNING id, name, description, area_name, location, status, created_by, created_at, updated_at`,
+    `INSERT INTO projects (name, description, area_name, location, status, meter_type_id, created_by)
+     VALUES ($1, $2, $3, $4, $5, $6, $7)
+     RETURNING id, name, description, area_name, location, status, meter_type_id, created_by, created_at, updated_at`,
     [
       data.name,
       data.description || null,
       data.area_name || null,
       data.location || null,
       data.status || 'ACTIVE',
+      data.meter_type_id || null,
       userId,
     ]
   );
@@ -206,6 +207,12 @@ export async function update(id: string, data: UpdateProjectInput): Promise<Proj
     paramIndex++;
   }
 
+  if (data.meter_type_id !== undefined) {
+    updates.push(`meter_type_id = $${paramIndex}`);
+    params.push(data.meter_type_id);
+    paramIndex++;
+  }
+
   // Always update the updated_at timestamp
   updates.push(`updated_at = NOW()`);
 
@@ -220,7 +227,7 @@ export async function update(id: string, data: UpdateProjectInput): Promise<Proj
     `UPDATE projects
      SET ${updates.join(', ')}
      WHERE id = $${paramIndex}
-     RETURNING id, name, description, area_name, location, status, created_by, created_at, updated_at`,
+     RETURNING id, name, description, area_name, location, status, meter_type_id, created_by, created_at, updated_at`,
     params
   );
 

water-api/src/types/index.ts

@@ -70,6 +70,20 @@ export interface TokenPair {
   refreshToken: string;
 }
 
+// ============================================
+// Meter Type Types
+// ============================================
+
+export interface MeterType {
+  id: string;
+  name: string;
+  code: string;
+  description: string | null;
+  is_active: boolean;
+  created_at: Date;
+  updated_at: Date;
+}
+
 // ============================================
 // Project Types
 // ============================================
@@ -81,6 +95,7 @@ export interface Project {
   location: string | null;
   latitude: number | null;
   longitude: number | null;
+  meter_type_id: string | null;
   is_active: boolean;
   created_by: number;
   created_at: Date;

water-api/src/validators/project.validator.ts

@@ -44,6 +44,11 @@ export const createProjectSchema = z.object({
     .enum([ProjectStatus.ACTIVE, ProjectStatus.INACTIVE, ProjectStatus.COMPLETED])
     .default(ProjectStatus.ACTIVE)
     .optional(),
+  meter_type_id: z
+    .string()
+    .uuid('Meter type ID must be a valid UUID')
+    .optional()
+    .nullable(),
 });
 
 /**
@@ -74,6 +79,11 @@ export const updateProjectSchema = z.object({
   status: z
     .enum([ProjectStatus.ACTIVE, ProjectStatus.INACTIVE, ProjectStatus.COMPLETED])
     .optional(),
+  meter_type_id: z
+    .string()
+    .uuid('Meter type ID must be a valid UUID')
+    .optional()
+    .nullable(),
 });
 
 /**