package main

import (
	// "bytes"
	"fmt"
)

func main() {
	type Mapping struct {
		symbol   string
		exchange string
	}
	currentMappings := []Mapping{
		{
			symbol:   "NOVN",
			exchange: "EBS",
		},
		{
			symbol:   "NOVN",
			exchange: "EBS",
		},
		{
			symbol:   "NOVN",
			exchange: "VIRTX",
		},
		{
			symbol:   "NOVNz",
			exchange: "VIRTX",
		},
	}
	fmt.Println("current ", currentMappings)
	stringKeyMapping := make(map[string]string)
	for _, mapping := range currentMappings {
		stringKeyMapping[mapping.symbol] = mapping.exchange
	}
	structKeyMapping := make(map[Mapping]Mapping)
	for _, mapping := range currentMappings {
		structKeyMapping[mapping] = mapping
	}

	incomingMappings := []Mapping{
		{
			symbol:   "NOVN",
			exchange: "EBS",
		},
		{
			symbol:   "NOVN",
			exchange: "EBS",
		},
		{
			symbol:   "NOVN",
			exchange: "VIRTX",
		},
		{
			symbol:   "NOVNz",
			exchange: "VIRTX",
		},
		{
			symbol:   "NVS",
			exchange: "NYSE",
		},
	}

	fmt.Println("incoming", incomingMappings)

	var deduplicated []Mapping
	for _, mapping := range incomingMappings {
		val, ok := stringKeyMapping[mapping.symbol]
		if ok && val == mapping.exchange {
			continue
		}
		fmt.Println(fmt.Sprintf("val (%v), ok(%v) := stringKeyMapping[%v]; ok && val == %v", val, ok, mapping.symbol, mapping.exchange))

		deduplicated = append(deduplicated, mapping)
	}
	fmt.Println("string key method deduplicated", deduplicated)
	fmt.Println("struct key map", structKeyMapping)
	var structKeyDeduplicated []Mapping
	for _, mapping := range incomingMappings {
		if _, ok := structKeyMapping[mapping]; ok {
			continue
		}
		structKeyDeduplicated = append(structKeyDeduplicated, mapping)
	}
	fmt.Println("struct key method deduplicated", structKeyDeduplicated)

}