package main

import (
	"io/ioutil"
	"strings"

	"gopkg.in/yaml.v3"
)

var reasonsDB []Reason

func loadYAMLDB(path string) error {
	data, err := ioutil.ReadFile(path)
	if err != nil {
		return err
	}
	return yaml.Unmarshal(data, &reasonsDB)
}

// findCandidates returns reasons with overlapping keywords
func findCandidates(keywords []string) []Reason {
	kwSet := make(map[string]struct{})
	for _, k := range keywords {
		kwSet[k] = struct{}{}
	}
	var candidates []Reason
	for _, r := range reasonsDB {
		for _, k := range r.Keywords {
			if _, ok := kwSet[strings.ToLower(k)]; ok {
				candidates = append(candidates, r)
				break
			}
		}
	}
	return candidates
}

// sumProcedures calculates total price and duration
func sumProcedures(procs []Procedure) (int, int) {
	totalPrice := 0
	totalDuration := 0
	for _, p := range procs {
		totalPrice += p.Price
		totalDuration += p.DurationMin
	}
	return totalPrice, totalDuration
}