// ListAccess will list all of the databases a user has access to.
func ListAccess(client *gophercloud.ServiceClient, instanceID, userName string) pagination.Pager {
	pageFn := func(r pagination.PageResult) pagination.Page {
		return AccessPage{pagination.LinkedPageBase{PageResult: r}}
	}

	return pagination.NewPager(client, dbsURL(client, instanceID, userName), pageFn)
}

// List members returns list of members for specifed image id
// More details: http://developer.openstack.org/api-ref-image-v2.html#listImageMembers-v2
func List(client *gophercloud.ServiceClient, id string) pagination.Pager {
	createPage := func(r pagination.PageResult) pagination.Page {
		return MemberPage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(client, listMembersURL(client, id), createPage)
}

// ListNodesDetails returns all load balancer pool nodes that are associated with RackConnect
// for the given LB pool ID with all their details.
func ListNodesDetails(c *gophercloud.ServiceClient, id string) pagination.Pager {
	url := listNodesDetailsURL(c, id)
	createPage := func(r pagination.PageResult) pagination.Page {
		return NodeDetailsPage{pagination.SinglePageBase(r)}
	}
	return pagination.NewPager(c, url, createPage)
}

// List returns a Pager which allows you to iterate over a collection of
// networks. It accepts a ListOpts struct, which allows you to filter and sort
// the returned collection for greater efficiency.
func List(c *gophercloud.ServiceClient, instanceID string) pagination.Pager {
	createPage := func(r pagination.PageResult) pagination.Page {
		return VirtualInterfacePage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(c, listURL(c, instanceID), createPage)
}

// List will list all of the available configurations.
func List(client *gophercloud.ServiceClient) pagination.Pager {
	pageFn := func(r pagination.PageResult) pagination.Page {
		return ConfigPage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(client, baseURL(client), pageFn)
}

// List returns a single page of CDN flavors.
func List(c *gophercloud.ServiceClient) pagination.Pager {
	url := listURL(c)
	createPage := func(r pagination.PageResult) pagination.Page {
		return FlavorPage{pagination.SinglePageBase(r)}
	}
	return pagination.NewPager(c, url, createPage)
}

// List is a function that retrieves containers associated with the account as
// well as account metadata. It returns a pager which can be iterated with the
// EachPage function.
func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
	headers := map[string]string{"Accept": "text/plain", "Content-Type": "text/plain"}

	url := listURL(c)
	if opts != nil {
		full, query, err := opts.ToContainerListParams()
		if err != nil {
			return pagination.Pager{Err: err}
		}
		url += query

		if full {
			headers = map[string]string{"Accept": "application/json", "Content-Type": "application/json"}
		}
	}

	createPage := func(r pagination.PageResult) pagination.Page {
		p := ContainerPage{pagination.MarkerPageBase{PageResult: r}}
		p.MarkerPageBase.Owner = p
		return p
	}

	pager := pagination.NewPager(c, url, createPage)
	pager.Headers = headers
	return pager
}

// List returns a Pager which allows you to iterate over a collection of
// networks. It accepts a ListOpts struct, which allows you to filter and sort
// the returned collection for greater efficiency.
func List(c *gophercloud.ServiceClient) pagination.Pager {
	createPage := func(r pagination.PageResult) pagination.Page {
		return NetworkPage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(c, listURL(c), createPage)
}

// List is the operation responsible for returning a paginated collection of
// network items that define a load balancer's access list.
func List(client *gophercloud.ServiceClient, lbID int) pagination.Pager {
	url := rootURL(client, lbID)

	return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
		return AccessListPage{pagination.SinglePageBase(r)}
	})
}

func ListRoles(client *gophercloud.ServiceClient, tenantID, userID string) pagination.Pager {
	createPage := func(r pagination.PageResult) pagination.Page {
		return RolePage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(client, listRolesURL(client, tenantID, userID), createPage)
}

// ListForServer returns all public IPs for the server with the given serverID.
func ListForServer(c *gophercloud.ServiceClient, serverID string) pagination.Pager {
	url := listForServerURL(c, serverID)
	createPage := func(r pagination.PageResult) pagination.Page {
		return PublicIPPage{pagination.SinglePageBase(r)}
	}
	return pagination.NewPager(c, url, createPage)
}

func List(client *gophercloud.ServiceClient) pagination.Pager {
	createPage := func(r pagination.PageResult) pagination.Page {
		return UserPage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(client, rootURL(client), createPage)
}

func commonList(client *gophercloud.ServiceClient, url string) pagination.Pager {
	createPage := func(r pagination.PageResult) pagination.Page {
		return SecurityGroupPage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(client, url, createPage)
}

// ListTypes makes a request against the API to list resource types.
func ListTypes(client *gophercloud.ServiceClient) pagination.Pager {
	url := listTypesURL(client)

	createPageFn := func(r pagination.PageResult) pagination.Page {
		return ResourceTypePage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(client, url, createPageFn)
}

// List returns all scaling policies for a group.
func List(client *gophercloud.ServiceClient, groupID string) pagination.Pager {
	url := listURL(client, groupID)

	createPageFn := func(r pagination.PageResult) pagination.Page {
		return PolicyPage{pagination.SinglePageBase(r)}
	}

	return pagination.NewPager(client, url, createPageFn)
}

// List returns a Pager which allows you to iterate over a collection of
// routers. It accepts a ListOpts struct, which allows you to filter and sort
// the returned collection for greater efficiency.
//
// Default policy settings return only those routers that are owned by the
// tenant who submits the request, unless an admin user submits the request.
func List(c *gophercloud.ServiceClient, opts ListOpts) pagination.Pager {
	q, err := gophercloud.BuildQueryString(&opts)
	if err != nil {
		return pagination.Pager{Err: err}
	}
	u := rootURL(c) + q.String()
	return pagination.NewPager(c, u, func(r pagination.PageResult) pagination.Page {
		return RouterPage{pagination.LinkedPageBase{PageResult: r}}
	})
}

// List is the operation responsible for returning a paginated collection of
// load balancer nodes. It requires the node ID, its parent load balancer ID,
// and optional limit integer (passed in either as a pointer or a nil poitner).
func List(client *gophercloud.ServiceClient, loadBalancerID int, limit *int) pagination.Pager {
	url := rootURL(client, loadBalancerID)
	if limit != nil {
		url += fmt.Sprintf("?limit=%d", limit)
	}

	return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
		return NodePage{pagination.SinglePageBase(r)}
	})
}

// List enumerates the services available to a specific user.
func List(client *gophercloud.ServiceClient, opts ListOpts) pagination.Pager {
	u := listURL(client)
	q, err := gophercloud.BuildQueryString(opts)
	if err != nil {
		return pagination.Pager{Err: err}
	}
	u += q.String()
	createPage := func(r pagination.PageResult) pagination.Page {
		return ServicePage{pagination.LinkedPageBase{PageResult: r}}
	}

	return pagination.NewPager(client, u, createPage)
}

// ListAssignments enumerates the roles assigned to a specified resource.
func ListAssignments(client *gophercloud.ServiceClient, opts ListAssignmentsOptsBuilder) pagination.Pager {
	url := listAssignmentsURL(client)
	query, err := opts.ToRolesListAssignmentsQuery()
	if err != nil {
		return pagination.Pager{Err: err}
	}
	url += query
	createPage := func(r pagination.PageResult) pagination.Page {
		return RoleAssignmentsPage{pagination.LinkedPageBase{PageResult: r}}
	}

	return pagination.NewPager(client, url, createPage)
}

// List returns a Pager which allows you to iterate over a collection of
// ports. It accepts a ListOpts struct, which allows you to filter and sort
// the returned collection for greater efficiency.
//
// Default policy settings return only those ports that are owned by the tenant
// who submits the request, unless the request is submitted by a user with
// administrative rights.
func List(c *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
	url := listURL(c)
	if opts != nil {
		query, err := opts.ToPortListQuery()
		if err != nil {
			return pagination.Pager{Err: err}
		}
		url += query
	}

	return pagination.NewPager(c, url, func(r pagination.PageResult) pagination.Page {
		return PortPage{pagination.LinkedPageBase{PageResult: r}}
	})
}