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path: root/tools/animeimporter/main.go
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package main

import (
	"database/sql"
	"flag"
	"fmt"
	"os"
	"path/filepath"

	"fagott.pw/grilist/grilist"
	"fagott.pw/grilist/models"
)

var path string
var sourceType string
var imgUrlExportFile string
var exportFile *os.File
var db *sql.DB
var r SeriesReader

type WrappedSeries struct {
	Series models.Series
	Image  string
}

type SeriesReader interface {
	Read(path string) WrappedSeries
	ID() int
}

func GetSeriesReader(rType string) SeriesReader {
	switch rType {
	case "ACDv2":
		return &ACDv2Reader{}
	}
	return nil
}

func LogErr(err error) {
	if err != nil {
		fmt.Fprintf(os.Stderr, "%s\n", err)
	}
}

func TryGetExistingSeries(s WrappedSeries, idmap map[int]int) int {
	dbID, _ := idmap[s.Series.ID]
	return dbID
}

func InsertSeries(s WrappedSeries) int {
	var dbID int
	row := db.QueryRow("INSERT INTO grilist.appearances (id) VALUES (DEFAULT) RETURNING id;")
	row.Scan(&dbID)
	fmt.Printf(
		"Assigned %d from %s to %d\n",
		s.Series.ID,
		sourceType,
		dbID)
	_, err := db.Exec("INSERT INTO grilist.appearances_id_mappings (appearance_id, source, source_id) VALUES ($1, $2, $3);",
		dbID, r.ID(), s.Series.ID)
	LogErr(err)
	if s.Series.Name != "" {
		_, err := db.Exec("INSERT INTO grilist.appearance_names (appearance_id, name, name_type) VALUES ($1, $2, $3);",
			dbID, s.Series.Name, 4)
		LogErr(err)
	}
	if s.Series.KanjiName != "" {
		_, err := db.Exec("INSERT INTO grilist.appearance_names (appearance_id, name, name_type) VALUES ($1, $2, $3);",
			dbID, s.Series.KanjiName, 0)
		LogErr(err)
	}
	if s.Series.RomajiName != "" {
		_, err := db.Exec("INSERT INTO grilist.appearance_names (appearance_id, name, name_type) VALUES ($1, $2, $3);",
			dbID, s.Series.RomajiName, 1)
		LogErr(err)
	}
	if s.Series.FuriganaName != "" {
		_, err := db.Exec("INSERT INTO grilist.appearance_names (appearance_id, name, name_type) VALUES ($1, $2, $3);",
			dbID, s.Series.FuriganaName, 3)
		LogErr(err)
	}
	for _, v := range s.Series.OtherNames {
		_, err := db.Exec("INSERT INTO grilist.appearance_names (appearance_id, name, name_type) VALUES ($1, $2, $3);",
			dbID, v, 2)
		LogErr(err)
	}
	if exportFile != nil {
		if s.Image != "" {
			fmt.Fprintf(
				exportFile,
				"%d %s\n",
				dbID,
				s.Image)
		}
	}
	return dbID
}

func InsertTags(dbID int, s WrappedSeries, taglist map[string]int) {
	for _, v := range s.Series.Tags {
		if _, ok := taglist[v]; ok {
			continue
		}
		var id int
		row := db.QueryRow("INSERT INTO grilist.tags (name, type) VALUES ($1, $2) RETURNING id;",
			v, models.TagTypeSeries)
		row.Scan(&id)
		taglist[v] = id
		fmt.Printf("Inserted tag %s as %d\n", v, id)
	}
	rows, err := db.Query("SELECT tag_id FROM appearances_tags WHERE appearance_id = $1;", dbID)
	LogErr(err)
	existingTags := make(map[int]bool, 0)
	for rows.Next() {
		var tagID int
		rows.Scan(&tagID)
		existingTags[tagID] = true
	}
	for _, v := range s.Series.Tags {
		tagID := taglist[v]
		if _, ok := existingTags[tagID]; ok {
			continue
		}
		_, err := db.Exec("INSERT INTO grilist.appearances_tags (appearance_id, tag_id) VALUES ($1, $2);",
			dbID, tagID)
		existingTags[tagID] = true
		fmt.Printf("Assigned tag %s to %s\n", v, s.Series.Name)
		LogErr(err)
	}
}

func main() {
	flag.StringVar(&path, "path", "", "path of the source files")
	flag.StringVar(&sourceType, "type", "", "type of the files (ACDv2)")
	flag.StringVar(&imgUrlExportFile, "imageexportfile", "", "image URLs will be exported to this file, THIS WILL OVERWRITE EVERYTHING IN THE FILE!")
	flag.Parse()
	if imgUrlExportFile != "" {
		var err error
		if exportFile, err = os.Create(imgUrlExportFile); err != nil {
			fmt.Fprintf(os.Stderr, "%s\n", "error while accessing \"%s\"")
			fmt.Fprintf(os.Stderr, "%v\n", err)
			os.Exit(1)
		}
	}
	if path == "" {
		fmt.Fprintf(os.Stderr, "%s\n", "\"path\" must be specified!")
		flag.Usage()
		os.Exit(1)
	}
	r = GetSeriesReader(sourceType)
	if r == nil {
		fmt.Fprintf(os.Stderr, "%s\n", "\"type\" must be specified and a valid series source!")
		flag.Usage()
		os.Exit(1)
	}
	config := grilist.LoadConfig()
	var err error
	db, err = sql.Open("postgres", config.DBConnectionString())
	if err == nil {
		err = db.Ping()
	}
	if err != nil {
		fmt.Fprintf(os.Stderr, "%s\n", "error with database connection")
		fmt.Fprintf(os.Stderr, "%v\n", err)
		os.Exit(1)
	}

	taglist := make(map[string]int)
	rows, err := db.Query("SELECT id, name FROM grilist.tags WHERE type = $1;", models.TagTypeSeries)
	LogErr(err)
	for rows.Next() {
		var id int
		var name string
		rows.Scan(&id, &name)
		taglist[name] = id
	}
	idmap := make(map[int]int)
	rows, err = db.Query("SELECT source_id, appearance_id FROM grilist.appearances_id_mappings WHERE source = $1;", r.ID())
	LogErr(err)
	for rows.Next() {
		var sourceID int
		var appearanceID int
		rows.Scan(&sourceID, &appearanceID)
		idmap[sourceID] = appearanceID
	}

	filepath.Walk(path, func(path string, info os.FileInfo, err error) error {
		if info.IsDir() {
			return nil
		}
		s := r.Read(path)

		var dbID int
		if dbID = TryGetExistingSeries(s, idmap); dbID == 0 {
			dbID = InsertSeries(s)
		}
		InsertTags(dbID, s, taglist)

		return nil
	})
}