package controllers

import (
	"gitea.zjmud.xyz/phyer/rbac/services"
	"github.com/gin-gonic/gin"
	"strconv"
)

// CreateRole 创建新角色
func CreateRole(c *gin.Context) {
	var roleData struct {
		Name        string `json:"name" binding:"required"`
		Description string `json:"description"`
	}
	if err := c.ShouldBindJSON(&roleData); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	role, err := services.CreateRole(roleData.Name, roleData.Description)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(201, role)
}

// GetRoles 获取所有角色
func GetRoles(c *gin.Context) {
	roles, err := services.GetAllRoles()
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, roles)
}

// CreatePermission 创建新权限
func CreatePermission(c *gin.Context) {
	var permissionData struct {
		Name        string `json:"name" binding:"required"`
		Description string `json:"description"`
		Resource    string `json:"resource" binding:"required"`
		Action      string `json:"action" binding:"required"`
	}
	if err := c.ShouldBindJSON(&permissionData); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	permission, err := services.CreatePermission(permissionData.Name, permissionData.Description, permissionData.Resource, permissionData.Action)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(201, permission)
}

// AssignRoleToUser 为用户分配角色
func AssignRoleToUser(c *gin.Context) {
	var assignmentData struct {
		UserID uint `json:"user_id" binding:"required"`
		RoleID uint `json:"role_id" binding:"required"`
	}
	if err := c.ShouldBindJSON(&assignmentData); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	err := services.AssignRoleToUser(assignmentData.UserID, assignmentData.RoleID)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, gin.H{"message": "Role assigned successfully"})
}

// AssignPermissionToRole 为角色分配权限
func AssignPermissionToRole(c *gin.Context) {
	var assignmentData struct {
		RoleID       uint `json:"role_id" binding:"required"`
		PermissionID uint `json:"permission_id" binding:"required"`
	}
	if err := c.ShouldBindJSON(&assignmentData); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	err := services.AssignPermissionToRole(assignmentData.RoleID, assignmentData.PermissionID)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, gin.H{"message": "Permission assigned successfully"})
}

// GetPermission 获取单个权限
func GetPermission(c *gin.Context) {
	id := c.Param("id")
	permissionID, err := strconv.ParseUint(id, 10, 64)
	if err != nil {
		c.JSON(400, gin.H{"error": "Invalid permission ID"})
		return
	}

	permission, err := services.GetPermissionByID(uint(permissionID))
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, permission)
}

// UpdatePermission 更新权限
func UpdatePermission(c *gin.Context) {
	id := c.Param("id")
	permissionID, err := strconv.ParseUint(id, 10, 64)
	if err != nil {
		c.JSON(400, gin.H{"error": "Invalid permission ID"})
		return
	}

	var updateData map[string]interface{}
	if err := c.ShouldBindJSON(&updateData); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	permission, err := services.UpdatePermission(uint(permissionID), updateData)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, permission)
}

// DeletePermission 删除权限
func DeletePermission(c *gin.Context) {
	id := c.Param("id")
	permissionID, err := strconv.ParseUint(id, 10, 64)
	if err != nil {
		c.JSON(400, gin.H{"error": "Invalid permission ID"})
		return
	}

	err = services.DeletePermission(uint(permissionID))
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, gin.H{"message": "Permission deleted successfully"})
}

// GetPermissions 获取所有权限
func GetPermissions(c *gin.Context) {
	permissions, err := services.GetAllPermissions()
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, permissions)
}

// GetRole 获取单个角色
func GetRole(c *gin.Context) {
	id := c.Param("id")
	roleID, err := strconv.ParseUint(id, 10, 64)
	if err != nil {
		c.JSON(400, gin.H{"error": "Invalid role ID"})
		return
	}

	role, err := services.GetRoleByID(uint(roleID))
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, role)
}

// UpdateRole 更新角色
func UpdateRole(c *gin.Context) {
	id := c.Param("id")
	roleID, err := strconv.ParseUint(id, 10, 64)
	if err != nil {
		c.JSON(400, gin.H{"error": "Invalid role ID"})
		return
	}

	var updateData map[string]interface{}
	if err := c.ShouldBindJSON(&updateData); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	role, err := services.UpdateRole(uint(roleID), updateData)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, role)
}

// DeleteRole 删除角色
func DeleteRole(c *gin.Context) {
	id := c.Param("id")
	roleID, err := strconv.ParseUint(id, 10, 64)
	if err != nil {
		c.JSON(400, gin.H{"error": "Invalid role ID"})
		return
	}

	err = services.DeleteRole(uint(roleID))
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}
	c.JSON(200, gin.H{"message": "Role deleted successfully"})
}