package script

import (
	"log"
	"strconv"
	"strings"
)

type Condition struct {
	Scope string `json:"scope"`
	Key   string `json:"key"`
	Op    string `json:"op"`
	Value string `json:"value,omitempty"`
	Not   bool   `json:"not,omitempty"`
}

func (c *Condition) Check(set VariableSet, match string, devices []string) bool {
	var value string
	switch c.Scope {
	case "global":
		value = set.Global(c.Key)
	case "match":
		value = set.Match(match, c.Key)
	case "devices":
		value = set.Devices(devices, c.Key)
	default:
		return c.Not
	}

	valueInt, valueIntErr := strconv.ParseInt(value, 10, 64)
	targetInt, _ := strconv.ParseInt(c.Value, 10, 64)

	switch c.Op {
	case "eq":
		return !c.Not == (value == c.Value)
	case "neq":
		return !c.Not == (value != c.Value)
	case "gt":
		return !c.Not == (valueInt > targetInt)
	case "lt":
		return !c.Not == (valueInt < targetInt)
	case "gte":
		log.Println(c.Not, valueInt, targetInt)
		return !c.Not == (valueInt >= targetInt)
	case "lte":
		return !c.Not == (valueInt <= targetInt)
	case "exists":
		return !c.Not == (value != "")
	case "contains":
		return !c.Not == strings.Contains(value, c.Value)
	case "numerical":
		return !c.Not == (valueIntErr == nil)
	default:
		return c.Not
	}
}