{{/*
Copyright 2019-present Facebook Inc. All rights reserved.
This source code is licensed under the Apache 2.0 license found
in the LICENSE file in the root directory of this source tree.
*/}}

{{ define "config" }}

{{ $pkg := base $.Config.Package }}
{{ template "header" $ }}

{{ template "import" $ }}

// Option function to configure the client.
type Option func(*config)

// Config is the configuration for the client and its builder.
type config struct {
	// driver used for executing database requests.
	driver dialect.Driver
	// debug enable a debug logging.
	debug bool
	// log used for logging on debug mode.
	log func(...interface{})
	// hooks to execute on mutations.
	hooks *hooks
	{{- /* Support adding config fields from both global or dialect-specific templates. */}}
	{{- range $prefix := list "" (printf "dialect/%s/" $.Storage) }}
		{{- with $tmpls := matchTemplate (print $prefix "config/fields/*") }}
			{{- range $tmpl := $tmpls }}
				{{ xtemplate $tmpl $ }}
			{{- end }}
		{{- end }}
	{{- end }}
}

// hooks per client, for fast access.
type hooks struct {
	{{- range $n := $.Nodes }}
    	{{ $n.Name }} []ent.Hook
	{{- end }}
}

// Options applies the options on the config object.
func (c *config) options(opts ...Option) {
	for _, opt := range opts {
		opt(c)
	}
	if c.debug {
		c.driver = dialect.Debug(c.driver, c.log)
	}
}

// Debug enables debug logging on the ent.Driver.
func Debug() Option {
	return func(c *config) {
		c.debug = true
	}
}

// Log sets the logging function for debug mode.
func Log(fn func(...interface{})) Option {
	return func(c *config) {
		c.log = fn
	}
}

// Driver configures the client driver.
func Driver(driver dialect.Driver) Option {
	return func(c *config) {
		c.driver = driver
	}
}

{{- /* Support adding config options from both global or dialect-specific templates. */}}
{{- range $prefix := list "" (printf "dialect/%s/" $.Storage) }}
	{{- with $tmpls := matchTemplate (print $prefix "config/options/*") }}
		{{- range $tmpl := $tmpls }}
			{{ xtemplate $tmpl $ }}
		{{- end }}
	{{- end }}
{{- end }}

{{ end }}