package table

import (
	"reflect"

	"github.com/onsi/ginkgo"
)

/*
TableEntry represents an entry in a table test.  You generally use the `Entry` constructor.
*/
type TableEntry struct {
	Description string
	Parameters  []interface{}
	Pending     bool
	Focused     bool
}

func (t TableEntry) generateIt(itBody reflect.Value) {
	if t.Pending {
		ginkgo.PIt(t.Description)
		return
	}

	values := make([]reflect.Value, len(t.Parameters))
	iBodyType := itBody.Type()
	for i, param := range t.Parameters {
		if param == nil {
			inType := iBodyType.In(i)
			values[i] = reflect.Zero(inType)
		} else {
			values[i] = reflect.ValueOf(param)
		}
	}

	body := func() {
		itBody.Call(values)
	}

	if t.Focused {
		ginkgo.FIt(t.Description, body)
	} else {
		ginkgo.It(t.Description, body)
	}
}

/*
Entry constructs a TableEntry.

The first argument is a required description (this becomes the content of the generated Ginkgo `It`).
Subsequent parameters are saved off and sent to the callback passed in to `DescribeTable`.

Each Entry ends up generating an individual Ginkgo It.
*/
func Entry(description string, parameters ...interface{}) TableEntry {
	return TableEntry{description, parameters, false, false}
}

/*
You can focus a particular entry with FEntry.  This is equivalent to FIt.
*/
func FEntry(description string, parameters ...interface{}) TableEntry {
	return TableEntry{description, parameters, false, true}
}

/*
You can mark a particular entry as pending with PEntry.  This is equivalent to PIt.
*/
func PEntry(description string, parameters ...interface{}) TableEntry {
	return TableEntry{description, parameters, true, false}
}

/*
You can mark a particular entry as pending with XEntry.  This is equivalent to XIt.
*/
func XEntry(description string, parameters ...interface{}) TableEntry {
	return TableEntry{description, parameters, true, false}
}