package clang_tidy

import (
	"encoding/json"
	"fmt"
	"os"
	"strings"

	"focs.ji.sjtu.edu.cn/git/FOCS-dev/JOJ3/internal/stage"
	"github.com/criyle/go-judge/envexec"
)

type Match struct {
	Keyword []string
	Score   int
}

type Conf struct {
	Score   int
	Matches []Match
}

type ClangTidy struct{}

func Parse(executorResult stage.ExecutorResult, conf Conf) stage.ParserResult {
	stdout := executorResult.Files["stdout"]
	stderr := executorResult.Files["stderr"]

	lines := strings.SplitAfter(stdout, "\n")
	messages := parse_lines(lines)
	formatted_messages := format(messages)

	// TODO: Handle the json file (parse into markdown and delete it?)
	json_file, _ := os.Create("./clangtidy_result.json")
	defer json_file.Close()

	encoder := json.NewEncoder(json_file)
	encoder.SetEscapeHTML(false)
	encoder.SetIndent("", "  ")
	_ = encoder.Encode(formatted_messages)

	if executorResult.Status != stage.Status(envexec.StatusAccepted) {
		return stage.ParserResult{
			Score: 0,
			Comment: fmt.Sprintf(
				"Unexpected executor status: %s.\nStderr: %s",
				executorResult.Status, stderr,
			),
		}
	}
	return stage.ParserResult{
		Score:   get_score(formatted_messages, conf),
		Comment: "",
	}
}

func (*ClangTidy) Run(results []stage.ExecutorResult, confAny any) (
	[]stage.ParserResult, bool, error,
) {
	conf, err := stage.DecodeConf[Conf](confAny)
	if err != nil {
		return nil, true, err
	}
	var res []stage.ParserResult
	for _, result := range results {
		res = append(res, Parse(result, *conf))
	}
	return res, false, nil
}