old-backend/controllers/contracts_controller.go

package controllers

import (
	"log"
	"net/http"
	"strconv"
	"time"

	"github.com/gin-gonic/gin"
	"gitlab.com/pactual1/backend/database/contract"
	"gitlab.com/pactual1/backend/models"
)

func GetLatestContracts(c *gin.Context) {
	// Get limit, offset, and status from query parameters with defaults
	limitStr := c.DefaultQuery("limit", "99999999999999999999999999999999")
	offsetStr := c.DefaultQuery("offset", "0")
	status := c.DefaultQuery("status", models.ContractStatusActive)

	// Optional search parameters
	companyName := c.Query("company_name")
	startTimeStr := c.Query("start_time")
	deviceIDsStr := c.QueryArray("device_ids[]")  // Assuming deviceIDs are passed as an array query parameter

	// Convert limit and offset to int
	limit, err := strconv.Atoi(limitStr)
	if err != nil {
		log.Printf("GetLatestContracts Error: Invalid limit value: %v", err)
		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid limit value"})
		return
	}

	offset, err := strconv.Atoi(offsetStr)
	if err != nil {
		log.Printf("GetLatestContracts Error: Invalid offset value: %v", err)
		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid offset value"})
		return
	}

	// Convert startTime to time.Time from Unix time in seconds
	var startTime time.Time
	if startTimeStr != "" {
		startTimeUnix, err := strconv.ParseInt(startTimeStr, 10, 64)
		if err != nil {
			log.Printf("GetLatestContracts Error: Invalid startTime value: %v", err)
			c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid startTime value"})
			return
		}
		startTime = time.Unix(startTimeUnix, 0)
	}

	// Convert deviceIDs to []int64
	var deviceIDs []int64
	for _, idStr := range deviceIDsStr {
		id, err := strconv.ParseInt(idStr, 10, 64)
		if err != nil {
			log.Printf("GetLatestContracts Error: Invalid deviceID value: %v", err)
			c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid deviceID value"})
			return
		}
		deviceIDs = append(deviceIDs, id)
	}

	// Fetch contracts
	contracts, total, st, err := contract.GetContracts(status, companyName, startTime, deviceIDs,limit, offset)

	if err != nil {
		c.JSON(st, gin.H{"error": err.Error()})
		return
	}
	// Respond with the contracts and the total count
	c.JSON(http.StatusOK, gin.H{"total": total, "contracts": contracts})
}