Files
projet_gestion_commande/backend/gestion/handlers/stats.go
T
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chore: build
2026-08-06 12:06:05 +02:00

460 lines
14 KiB
Go

package handlers
import (
"context"
"fmt"
"gestion/db"
"gestion/models"
"net/http"
"time"
"github.com/gin-gonic/gin"
"golang.org/x/sync/errgroup"
)
var weekdayNames = []string{"Dimanche", "Lundi", "Mardi", "Mercredi", "Jeudi", "Vendredi", "Samedi"}
// sections valides pour le reset
var validStatsSections = map[string]string{
"commandes": "stats_reset_commandes_at",
"revenus": "stats_reset_revenus_at",
"produits": "stats_reset_produits_at",
"heures": "stats_reset_heures_at",
"jours": "stats_reset_jours_at",
"doses": "stats_reset_doses_at",
}
// ResetAdminStats réinitialise une section précise des statistiques.
func ResetAdminStats(c *gin.Context) {
section := c.Param("section")
key, ok := validStatsSections[section]
if !ok {
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("section invalide : %s", section)})
return
}
database := c.MustGet("database").(*db.Database)
now := time.Now().UTC().Format(time.RFC3339)
if err := database.ResetAdminStat(key); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("Erreur lors de la suppresion de la section statistique: %s", err)})
return
}
c.JSON(http.StatusOK, gin.H{"success": true, "section": section, "reset_at": now})
}
func dateFilter(t time.Time) string {
if t.IsZero() {
return ""
}
return t.Format(time.RFC3339)
}
// GetAdminStatsByMonth renvoie, pour chaque jour du mois demandé (paramètre
// de query "month" au format YYYY-MM, mois courant par défaut), le nombre de
// commandes, le revenu et la quantité vendue. Les jours sans commande sont
// inclus avec des valeurs à zéro.
func GetAdminStatsByMonth(c *gin.Context) {
database := c.MustGet("database").(*db.Database)
monthParam := c.Query("month")
monthStart := time.Now()
if monthParam != "" {
parsed, err := time.Parse("2006-01", monthParam)
if err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("paramètre month invalide (attendu YYYY-MM) : %s", monthParam)})
return
}
monthStart = parsed
}
monthStart = time.Date(monthStart.Year(), monthStart.Month(), 1, 0, 0, 0, 0, monthStart.Location())
resetCmd := database.ReadResetAt("stats_reset_commandes_at")
var rows []db.DailyMonthStatRow
if err := database.StatsByDayForMonth(&rows, monthStart, resetCmd); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("Erreur lors de la récupération des statistiques mensuelles: %s", err)})
return
}
rowByDay := make(map[string]db.DailyMonthStatRow, len(rows))
for _, r := range rows {
rowByDay[r.Day.Format("2006-01-02")] = r
}
daysInMonth := monthStart.AddDate(0, 1, -1).Day()
byDay := make([]gin.H, daysInMonth)
var totalOrders int
var totalRevenue float64
var totalQuantity float64
for i := range daysInMonth {
day := monthStart.AddDate(0, 0, i)
key := day.Format("2006-01-02")
r, ok := rowByDay[key]
if !ok {
r = db.DailyMonthStatRow{Day: day}
}
byDay[i] = gin.H{
"day": key,
"label": day.Format("02/01"),
"count": r.Count,
"revenue": r.Revenue,
"quantity": r.Quantity,
}
totalOrders += r.Count
totalRevenue += r.Revenue
totalQuantity += r.Quantity
}
c.JSON(http.StatusOK, gin.H{
"month": monthStart.Format("2006-01"),
"summary": gin.H{
"total_orders": totalOrders,
"total_revenue": totalRevenue,
"total_quantity": totalQuantity,
},
"by_day": byDay,
})
}
func GetAdminDailyDetail(c *gin.Context) {
database := c.MustGet("database").(*db.Database)
dateParam := c.Query("date")
date := time.Now()
if dateParam != "" {
parsed, err := time.Parse("2006-01-02", dateParam)
if err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("paramètre date invalide (attendu YYYY-MM-DD) : %s", dateParam)})
return
}
date = parsed
}
var dailyRows []models.DailyProductRow
if err := database.DailyProductDetailForDate(&dailyRows, date); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": fmt.Sprintf("Erreur lors de la récupération du détail du jour: %s", err)})
return
}
type dailyCatGroup struct {
Category string
CategoryColor string
TotalQuantity float64
TotalRevenue float64
Products []gin.H
}
var dailyCats []dailyCatGroup
dailyCatIdx := map[string]int{}
dailyTotalRevenue := 0.0
dailyTotalQty := 0.0
for _, r := range dailyRows {
dailyTotalRevenue += r.Revenue
dailyTotalQty += r.TotalQuantity
idx, ok := dailyCatIdx[r.Category]
if !ok {
idx = len(dailyCats)
dailyCats = append(dailyCats, dailyCatGroup{
Category: r.Category,
CategoryColor: r.CategoryColor,
})
dailyCatIdx[r.Category] = idx
}
dailyCats[idx].TotalQuantity += r.TotalQuantity
dailyCats[idx].TotalRevenue += r.Revenue
dailyCats[idx].Products = append(dailyCats[idx].Products, gin.H{
"product_id": r.ProductID,
"name": r.ProductName,
"quantity": r.TotalQuantity,
"order_count": r.OrderCount,
"revenue": r.Revenue,
})
}
dailyCatsJSON := make([]gin.H, len(dailyCats))
for i, g := range dailyCats {
dailyCatsJSON[i] = gin.H{
"category": g.Category,
"category_color": g.CategoryColor,
"total_quantity": g.TotalQuantity,
"total_revenue": g.TotalRevenue,
"products": g.Products,
}
}
dailyTotalOrders, _ := database.DailyOrdersCountForDate(date)
c.JSON(http.StatusOK, gin.H{
"date": date.Format("02/01/2006"),
"total_orders": dailyTotalOrders,
"total_quantity": dailyTotalQty,
"total_revenue": dailyTotalRevenue,
"categories": dailyCatsJSON,
})
}
// GetAdminStats returns aggregated order & product statistics for the admin dashboard.
func GetAdminStats(c *gin.Context) {
database := c.MustGet("database").(*db.Database)
filters := database.LoadAdminStatsFilters()
// Toutes les requêtes sont indépendantes — on les lance en parallèle.
var (
wdRows []models.WeekdayRow
dayRows []models.DayRow
dayRevRows []models.DayRevenueRow
hourRows []models.HourRow
prodRows []models.ProductRow
qtyRows []models.QuantityBreakdownRow
dailyRows []models.DailyProductRow
totalOrders int64
totalRevenue float64
dailyTotalOrders int64
activeDays int64
last30Count int64
)
eg, _ := errgroup.WithContext(context.Background())
eg.Go(func() error { return database.OrderPerDaysPerWeeks(&wdRows, filters.ResetJours) })
eg.Go(func() error { return database.OrdersByDayLast30(&dayRows, filters.ResetCommandes) })
eg.Go(func() error { return database.RevenueByDayLast30(&dayRevRows, filters.ResetRevenus) })
eg.Go(func() error { return database.OrdersAndRevenueByHour(&hourRows, filters.ResetHeures) })
eg.Go(func() error { return database.TopProducts(&prodRows, filters.ResetProduits, 15) })
eg.Go(func() error { return database.QuantityBreakdown(&qtyRows, filters.ResetDoses) })
eg.Go(func() error { return database.DailyProductDetail(&dailyRows) })
eg.Go(func() error {
var err error
totalOrders, err = database.TotalOrders(filters.ResetCommandes)
return err
})
eg.Go(func() error {
var err error
totalRevenue, err = database.TotalRevenue(filters.ResetRevenus)
return err
})
eg.Go(func() error {
var err error
dailyTotalOrders, err = database.DailyOrdersCount()
return err
})
eg.Go(func() error {
var err error
activeDays, err = database.ActiveDaysLast30(filters.ResetCommandes)
return err
})
eg.Go(func() error {
var err error
last30Count, err = database.OrdersCountLast30(filters.ResetCommandes)
return err
})
if err := eg.Wait(); err != nil {
c.JSON(http.StatusInternalServerError, gin.H{"error": "Erreur lors de la récupération des statistiques"})
return
}
// ── Commandes par jour de la semaine ──────────────────────────────────────
byWeekday := make([]gin.H, 7)
wdMap := make(map[int]int, len(wdRows))
for _, r := range wdRows {
wdMap[r.DOW] = r.Count
}
peakCount, peakWeekday := 0, ""
for i := range 7 {
cnt := wdMap[i]
byWeekday[i] = gin.H{"weekday": weekdayNames[i], "count": cnt}
if cnt > peakCount {
peakCount = cnt
peakWeekday = weekdayNames[i]
}
}
// ── Commandes par jour sur 30 jours ───────────────────────────────────────
byDay := make([]gin.H, len(dayRows))
for i, r := range dayRows {
byDay[i] = gin.H{
"day": r.Day.Format("2006-01-02"),
"label": r.Day.Format("02/01"),
"count": r.Count,
}
}
// ── Revenus par jour sur 30 jours ─────────────────────────────────────────
byDayRevenue := make([]gin.H, len(dayRevRows))
for i, r := range dayRevRows {
byDayRevenue[i] = gin.H{
"day": r.Day.Format("2006-01-02"),
"label": r.Day.Format("02/01"),
"revenue": r.Revenue,
}
}
// ── Commandes & revenus par heure ─────────────────────────────────────────
hourMap := make(map[int]models.HourRow, len(hourRows))
for _, r := range hourRows {
hourMap[r.Hour] = r
}
byHour := make([]gin.H, 24)
for h := range 24 {
r := hourMap[h]
byHour[h] = gin.H{
"hour": h,
"label": fmt.Sprintf("%02dh", h),
"count": r.Count,
"revenue": r.Revenue,
}
}
// ── Top produits ──────────────────────────────────────────────────────────
topProducts := make([]gin.H, len(prodRows))
topProductName := ""
for i, r := range prodRows {
topProducts[i] = gin.H{
"product_id": r.ProductID,
"name": r.Name,
"quantity": r.Quantity,
"order_count": r.OrderCount,
"revenue": r.Revenue,
"category": r.Category,
"category_color": r.CategoryColor,
}
if i == 0 {
topProductName = r.Name
}
}
// ── Répartition des doses/quantités ───────────────────────────────────────
type productGroup struct {
ProductID int
Name string
CategoryColor string
TotalOrders int
Quantities []gin.H
}
var groups []productGroup
groupIdx := map[int]int{}
for _, r := range qtyRows {
idx, ok := groupIdx[r.ProductID]
if !ok {
idx = len(groups)
groups = append(groups, productGroup{
ProductID: r.ProductID,
Name: r.ProductName,
CategoryColor: r.CategoryColor,
})
groupIdx[r.ProductID] = idx
}
groups[idx].TotalOrders += r.OrderCount
groups[idx].Quantities = append(groups[idx].Quantities, gin.H{
"quantity": r.Quantity,
"order_count": r.OrderCount,
"total_sold": r.TotalSold,
"revenue": r.Revenue,
})
}
for i := 0; i < len(groups)-1; i++ {
for j := i + 1; j < len(groups); j++ {
if groups[j].TotalOrders > groups[i].TotalOrders {
groups[i], groups[j] = groups[j], groups[i]
}
}
}
if len(groups) > 15 {
groups = groups[:15]
}
byQuantity := make([]gin.H, len(groups))
for i, grp := range groups {
byQuantity[i] = gin.H{
"product_id": grp.ProductID,
"name": grp.Name,
"category_color": grp.CategoryColor,
"total_orders": grp.TotalOrders,
"quantities": grp.Quantities,
}
}
// ── Détail du jour ────────────────────────────────────────────────────────
type dailyCatGroup struct {
Category string
CategoryColor string
TotalQuantity float64
TotalRevenue float64
Products []gin.H
}
var dailyCats []dailyCatGroup
dailyCatIdx := map[string]int{}
dailyTotalRevenue := 0.0
dailyTotalQty := 0.0
for _, r := range dailyRows {
dailyTotalRevenue += r.Revenue
dailyTotalQty += r.TotalQuantity
idx, ok := dailyCatIdx[r.Category]
if !ok {
idx = len(dailyCats)
dailyCats = append(dailyCats, dailyCatGroup{
Category: r.Category,
CategoryColor: r.CategoryColor,
})
dailyCatIdx[r.Category] = idx
}
dailyCats[idx].TotalQuantity += r.TotalQuantity
dailyCats[idx].TotalRevenue += r.Revenue
dailyCats[idx].Products = append(dailyCats[idx].Products, gin.H{
"product_id": r.ProductID,
"name": r.ProductName,
"quantity": r.TotalQuantity,
"order_count": r.OrderCount,
"revenue": r.Revenue,
})
}
dailyCatsJSON := make([]gin.H, len(dailyCats))
for i, grp := range dailyCats {
dailyCatsJSON[i] = gin.H{
"category": grp.Category,
"category_color": grp.CategoryColor,
"total_quantity": grp.TotalQuantity,
"total_revenue": grp.TotalRevenue,
"products": grp.Products,
}
}
// ── Résumé global ─────────────────────────────────────────────────────────
avgPerDay := 0.0
if totalOrders > 0 && activeDays > 0 {
avgPerDay = float64(last30Count) / float64(activeDays)
}
c.JSON(http.StatusOK, gin.H{
"summary": gin.H{
"total_orders": totalOrders,
"total_revenue": totalRevenue,
"peak_weekday": peakWeekday,
"top_product": topProductName,
"avg_per_day": avgPerDay,
},
"reset_at_commandes": dateFilter(filters.ResetCommandes),
"reset_at_revenus": dateFilter(filters.ResetRevenus),
"reset_at_produits": dateFilter(filters.ResetProduits),
"reset_at_heures": dateFilter(filters.ResetHeures),
"reset_at_jours": dateFilter(filters.ResetJours),
"reset_at_doses": dateFilter(filters.ResetDoses),
"by_weekday": byWeekday,
"by_day_30": byDay,
"by_day_revenue": byDayRevenue,
"by_hour": byHour,
"top_products": topProducts,
"by_quantity": byQuantity,
"daily_detail": gin.H{
"date": time.Now().Format("02/01/2006"),
"total_orders": dailyTotalOrders,
"total_quantity": dailyTotalQty,
"total_revenue": dailyTotalRevenue,
"categories": dailyCatsJSON,
},
})
}