package reports

import (
	db "ttime/internal/database"

	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/log"
	"github.com/golang-jwt/jwt/v5"
)

func GetStatistics(c *fiber.Ctx) error {
	// Extract the necessary parameters from the token
	user := c.Locals("user").(*jwt.Token)
	claims := user.Claims.(jwt.MapClaims)
	username := claims["name"].(string)

	// Extract project name from query parameters
	projectName := c.Query("projectName")
	userNameParam := c.Query("userName")

	log.Info(username, " trying to get statistics for project: ", projectName)

	if projectName == "" {
		log.Info("Missing project name")
		return c.Status(400).SendString("Missing project name")
	}

	// Check if the user is a project manager
	pm, err := db.GetDb(c).IsProjectManager(username, projectName)
	if err != nil {
		log.Info("Error checking if user is project manager:", err)
		return c.Status(500).SendString(err.Error())
	}

	// Bail if the user is not a PM or checking its own statistics
	if !pm && userNameParam != "" && userNameParam != username {
		log.Info("Unauthorized access for user: ", username, "trying to access project: ", projectName, "statistics for user: ", userNameParam)
		return c.Status(403).SendString("Unauthorized access")
	}

	// Retrieve statistics for the project from the database
	statistics, err := db.GetDb(c).ReportStatistics(username, projectName)
	if err != nil {
		log.Error("Error getting statistics for project:", projectName, ":", err)
		return c.Status(500).SendString(err.Error())
	}

	log.Info("Returning statistics")
	// Return the retrieved statistics
	return c.JSON(statistics)

}