You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
112 lines
2.2 KiB
Go
112 lines
2.2 KiB
Go
package main
|
|
|
|
import (
|
|
"database/sql"
|
|
_ "github.com/mattn/go-sqlite3"
|
|
"os"
|
|
)
|
|
|
|
var (
|
|
db *sql.DB
|
|
)
|
|
|
|
func dbconnect() {
|
|
var err error
|
|
db, err = sql.Open("sqlite3", "./exo.db")
|
|
if err != nil {
|
|
bail(E_No_DB, "couldn't connect to db: %v", err)
|
|
}
|
|
}
|
|
|
|
func planetsTable() {
|
|
stmnt := `create table if not exists planets (
|
|
id integer not null primary key autoincrement,
|
|
name text,
|
|
x integer,
|
|
y integer,
|
|
z integer,
|
|
planets integer
|
|
);`
|
|
if _, err := db.Exec(stmnt); err != nil {
|
|
log_error("couldn't create planets table: %v", err)
|
|
}
|
|
}
|
|
|
|
func planetsData() {
|
|
n, err := countSystems()
|
|
if err != nil {
|
|
log_error("couldn't count planets: %v", err)
|
|
return
|
|
}
|
|
if n == 0 {
|
|
fi, err := os.Open(options.speckPath)
|
|
if err != nil {
|
|
bail(E_No_Data, "unable to open data path: %v", err)
|
|
}
|
|
c := make(chan System)
|
|
go speckStream(fi, c)
|
|
for planet := range c {
|
|
planet.Store(db)
|
|
}
|
|
}
|
|
indexSystems()
|
|
}
|
|
|
|
func edgesTable() {
|
|
stmnt := `create table if not exists edges (
|
|
id_1 integer,
|
|
id_2 integer,
|
|
distance real
|
|
);`
|
|
if _, err := db.Exec(stmnt); err != nil {
|
|
log_error("couldn't create distance table: %v", err)
|
|
}
|
|
}
|
|
|
|
func setupDb() {
|
|
planetsTable()
|
|
planetsData()
|
|
edgesTable()
|
|
playersTable()
|
|
gamesTable()
|
|
fillEdges()
|
|
}
|
|
|
|
func fillEdges() {
|
|
row := db.QueryRow(`select count(*) from edges;`)
|
|
var n int
|
|
if err := row.Scan(&n); err != nil {
|
|
log_error("couldn't get number of edges: %v", err)
|
|
return
|
|
}
|
|
if n > 0 {
|
|
return
|
|
}
|
|
for i := 0; i < len(index); i++ {
|
|
for j := 0; j < len(index); j++ {
|
|
if i == j {
|
|
continue
|
|
}
|
|
if index[i] == nil {
|
|
log_error("wtf there's nil shit in here for id %d", i)
|
|
continue
|
|
}
|
|
if index[j] == nil {
|
|
log_error("wtf there's nil shit in here 2 for id %d", j)
|
|
continue
|
|
}
|
|
dist := index[i].DistanceTo(index[j])
|
|
log_info("distance from %s to %s: %v", index[i].name, index[j].name, dist)
|
|
_, err := db.Exec(`
|
|
insert into edges
|
|
(id_1, id_2, distance)
|
|
values
|
|
(?, ?, ?)
|
|
;`, i, j, dist)
|
|
if err != nil {
|
|
log_error("unable to write edge to db: %v", err)
|
|
}
|
|
}
|
|
}
|
|
}
|