package handlers

import (
	"strconv"
	"ttime/internal/types"

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

// CreateProject is a simple handler that creates a new project
func (gs *GState) CreateProject(c *fiber.Ctx) error {
	user := c.Locals("user").(*jwt.Token)

	p := new(types.NewProject)
	if err := c.BodyParser(p); err != nil {
		return c.Status(400).SendString(err.Error())
	}

	// Get the username from the token and set it as the owner of the project
	// This is ugly but
	claims := user.Claims.(jwt.MapClaims)
	owner := claims["name"].(string)

	if err := gs.Db.AddProject(p.Name, p.Description, owner); err != nil {
		return c.Status(500).SendString(err.Error())
	}

	return c.Status(200).SendString("Project added")
}

// GetUserProjects returns all projects that the user is a member of
func (gs *GState) GetUserProjects(c *fiber.Ctx) error {
	// First we get the username from the token
	user := c.Locals("user").(*jwt.Token)
	claims := user.Claims.(jwt.MapClaims)
	username := claims["name"].(string)

	// Then dip into the database to get the projects
	projects, err := gs.Db.GetProjectsForUser(username)
	if err != nil {
		return c.Status(500).SendString(err.Error())
	}

	// Return a json serialized list of projects
	return c.JSON(projects)
}

// ProjectRoleChange is a handler that changes a user's role within a project
func (gs *GState) ProjectRoleChange(c *fiber.Ctx) error {
	// Extract the necessary parameters from the request
	username := c.Params("username")
	projectName := c.Params("projectName")
	role := c.Params("role")

	// Change the user's role within the project in the database
	if err := gs.Db.ChangeUserRole(username, projectName, role); err != nil {
		return c.Status(500).SendString(err.Error())
	}

	// Return a success message
	return c.SendStatus(fiber.StatusOK)
}

// GetProject retrieves a specific project by its ID
func (gs *GState) GetProject(c *fiber.Ctx) error {
	// Extract the project ID from the request parameters or body
	projectID := c.Params("projectID")

	// Parse the project ID into an integer
	projectIDInt, err := strconv.Atoi(projectID)
	if err != nil {
		return c.Status(400).SendString("Invalid project ID")
	}

	// Get the project from the database by its ID
	project, err := gs.Db.GetProject(projectIDInt)
	if err != nil {
		return c.Status(500).SendString(err.Error())
	}

	// Return the project as JSON
	return c.JSON(project)
}

func (gs *GState) ListAllUsersProject(c *fiber.Ctx) error {
	// Extract the project name from the request parameters or body
	projectName := c.Params("projectName")

	// Get all users associated with the project from the database
	users, err := gs.Db.GetAllUsersProject(projectName)
	if err != nil {
		return c.Status(500).SendString(err.Error())
	}

	// Return the list of users as JSON
	return c.JSON(users)
}