package handlers

import (
	"net/http"

	"github.com/breakpilot/ai-compliance-sdk/internal/rbac"
	"github.com/breakpilot/ai-compliance-sdk/internal/reporting"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
)

type ReportingHandlers struct {
	store *reporting.Store
}

func NewReportingHandlers(store *reporting.Store) *ReportingHandlers {
	return &ReportingHandlers{store: store}
}

// GetExecutiveReport generates a comprehensive compliance report
// GET /sdk/v1/reporting/executive
func (h *ReportingHandlers) GetExecutiveReport(c *gin.Context) {
	tenantID := rbac.GetTenantID(c)
	if tenantID == uuid.Nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "tenant ID required"})
		return
	}

	report, err := h.store.GenerateReport(c.Request.Context(), tenantID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, report)
}

// GetComplianceScore returns just the overall compliance score
// GET /sdk/v1/reporting/score
func (h *ReportingHandlers) GetComplianceScore(c *gin.Context) {
	tenantID := rbac.GetTenantID(c)
	if tenantID == uuid.Nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "tenant ID required"})
		return
	}

	report, err := h.store.GenerateReport(c.Request.Context(), tenantID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, gin.H{
		"compliance_score": report.ComplianceScore,
		"risk_level":       report.RiskOverview.OverallLevel,
		"generated_at":     report.GeneratedAt,
	})
}

// GetUpcomingDeadlines returns deadlines across all modules
// GET /sdk/v1/reporting/deadlines
func (h *ReportingHandlers) GetUpcomingDeadlines(c *gin.Context) {
	tenantID := rbac.GetTenantID(c)
	if tenantID == uuid.Nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "tenant ID required"})
		return
	}

	report, err := h.store.GenerateReport(c.Request.Context(), tenantID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, gin.H{
		"deadlines": report.UpcomingDeadlines,
		"total":     len(report.UpcomingDeadlines),
	})
}

// GetRiskOverview returns the aggregated risk assessment
// GET /sdk/v1/reporting/risks
func (h *ReportingHandlers) GetRiskOverview(c *gin.Context) {
	tenantID := rbac.GetTenantID(c)
	if tenantID == uuid.Nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "tenant ID required"})
		return
	}

	report, err := h.store.GenerateReport(c.Request.Context(), tenantID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}

	c.JSON(http.StatusOK, report.RiskOverview)
}