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main.go
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main.go
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package main
import (
"app/pkg/models"
"database/sql"
"encoding/json"
_ "github.com/mattn/go-sqlite3"
log "github.com/sirupsen/logrus"
"io/ioutil"
"net/http"
"os"
)
// TODO: Should print number of rows affected to logs. I am currentyl ignoring the first return val for stmt.Exec()
func createTables(db *sql.DB) (err error) {
// One off function to simplify the loop below
var runCreate = func(stmt *sql.Stmt) (err error) {
_, err = stmt.Exec()
if err != nil {
return err
}
return nil
}
seasonsStmtString := "CREATE TABLE seasons (id INTEGER PRIMARY KEY AUTOINCREMENT, season INTEGER)"
weeksStmtString := "CREATE TABLE weeks (id INTEGER PRIMARY KEY AUTOINCREMENT, season_id INTEGER, label TEXT, order_ INTEGER)"
gamesStmtString := `CREATE TABLE games
(id INTEGER PRIMARY KEY AUTOINCREMENT,
season_id INTEGER,
week_id INTEGER,
game_id TEXT,
date TEXT,
home_team TEXT,
visiting_team TEXT,
home_score INTEGER,
visiting_score INTEGER,
OT BOOLEAN)`
bibleStmtString := "CREATE TABLE bible (id INTEGER PRIMARY KEY AUTOINCREMENT, chapter INTEGER, book TEXT, verse INTEGER, vtext TEXT)"
createMap := map[string]string{"seasons": seasonsStmtString, "weeks": weeksStmtString, "games": gamesStmtString, "bible": bibleStmtString}
var stmt *sql.Stmt
for key, value := range createMap {
log.Println("Creating", key, "Table")
stmt, err = db.Prepare(value)
if err != nil {
return err
}
if err := runCreate(stmt); err != nil {
log.Println("Failed to create", key, " table")
return err
}
}
return nil
}
func insertGames(db *sql.DB, s models.Season) (err error) {
stmtString := "INSERT INTO games (season_id, week_id, game_id, date, home_team, visiting_team, home_score, visiting_score, OT) VALUES "
var inserts []interface{}
for _, game := range s.Games {
stmtString += "(?, ?, ?, ?, ?, ?, ?, ?, ?),"
inserts = append(inserts, s.Year, game.WeekID, game.GameID, game.Date, game.HomeTeam, game.VisitingTeam, game.HomeScore, game.VisitingScore, game.OT)
}
stmt, err := db.Prepare(stmtString[0 : len(stmtString)-1])
if err != nil {
return err
}
if _, err = stmt.Exec(inserts...); err != nil {
return err
}
return nil
}
func insertWeeks(db *sql.DB, s models.Season) (err error) {
stmtString := "INSERT INTO weeks (season_id, label, order_) VALUES "
var inserts []interface{}
for _, week := range s.Weeks {
stmtString += "(?, ?, ?),"
inserts = append(inserts, s.Year, week.Label, week.Order)
}
stmt, err := db.Prepare(stmtString[0 : len(stmtString)-1])
if err != nil {
return err
}
if _, err = stmt.Exec(inserts...); err != nil {
return err
}
return nil
}
func createSeasonRecord(db *sql.DB, s models.Season) (err error) {
stmtString := "INSERT INTO seasons (season) VALUES(?)"
stmt, err := db.Prepare(stmtString)
if err != nil {
return err
}
if _, err = stmt.Exec(s.Year); err != nil {
return err
}
if err = insertGames(db, s); err != nil {
return err
}
if err = insertWeeks(db, s); err != nil {
return err
}
return nil
}
func createVerseRecord(db *sql.DB, v models.BibleVerse) (err error) {
stmtString := "INSERT INTO bible (chapter, book, verse, vtext) VALUES(?, ?, ?, ?)"
stmt, err := db.Prepare(stmtString)
if err != nil {
return err
}
if _, err = stmt.Exec(v.Chapter, v.Book, v.Verse, v.Text); err != nil {
return err
}
return nil
}
func populateGameDataTables(db *sql.DB, data []models.Season) (err error) {
for _, season := range data {
if err = createSeasonRecord(db, season); err != nil {
return err
}
}
return nil
}
func populateBibleTables(db *sql.DB, data []models.BibleVerse) (err error) {
for _, verse := range data {
if err = createVerseRecord(db, verse); err != nil {
return err
}
}
return nil
}
func downloadFile(url string) (b []byte, err error) {
res, err := http.Get(url)
if err != nil {
return nil, err
}
b, err = ioutil.ReadAll(res.Body)
if err != nil {
return nil, err
}
return b, nil
}
func popGameData(db *sql.DB) (err error) {
// Download file from fdb-repo
log.Println("Fetching raw game data from GitHub")
fURL := "https://raw.githubusercontent.com/fischersean/fdb-scrape/master/exports/gamedata.json"
b, err := downloadFile(fURL)
//f, err := ioutil.ReadFile(gdataFile)
if err != nil {
return err
}
log.Println("Successfully downloaded game data")
// Read in JSON encoded data
var sdata []models.Season
if err := json.Unmarshal(b, &sdata); err != nil {
return err
}
log.Println("Successfully parsed game json")
// Populate tables
if err := populateGameDataTables(db, sdata); err != nil {
return err
}
return nil
}
func popBibleData(db *sql.DB) (err error) {
log.Println("Fetching raw bible data from GitHub")
fURL := "https://raw.githubusercontent.com/fischersean/json-bible/master/exports/bible.json"
b, err := downloadFile(fURL)
//f, err := ioutil.ReadFile(gdataFile)
if err != nil {
return err
}
log.Println("Successfully downloaded bible data")
// Read in JSON encoded data
var bdata []models.BibleVerse
if err := json.Unmarshal(b, &bdata); err != nil {
return err
}
log.Println("Successfully parsed bible json")
// Populate tables
if err := populateBibleTables(db, bdata); err != nil {
return err
}
return nil
}
func popDerivedTables(db *sql.DB) (err error) {
stmtString := `CREATE TABLE valid_books AS
SELECT DISTINCT weeks.season_id, weeks.label, bible.book
FROM games
LEFT JOIN bible
ON (bible.chapter = games.home_score AND
bible.verse = games.visiting_score)
LEFT JOIN weeks
ON (weeks.season_id = games.season_id AND weeks.label = games.week_id)`
stmt, err := db.Prepare(stmtString)
if err != nil {
return err
}
if _, err = stmt.Exec(); err != nil {
return err
}
return nil
}
func main() {
dbName := "./app.db"
//gdataFile := "./resources/gamedata.json"
log.Println("Creating new application database")
if _, err := os.Stat(dbName); err == nil {
log.Println("Found pre-exisiting database. Deleting and re-creating")
os.Remove(dbName)
}
db, _ := sql.Open("sqlite3", dbName)
// Create tables
if err := createTables(db); err != nil {
panic(err.Error())
}
defer db.Close()
if err := popGameData(db); err != nil {
panic(err.Error())
}
if err := popBibleData(db); err != nil {
panic(err.Error())
}
if err := popDerivedTables(db); err != nil {
panic(err.Error())
}
log.Println("Database population complete")
}