1 files changed, 0 insertions, 225 deletions
diff --git a/sklad/db.go b/sklad/db.go
deleted file mode 100644
index def18a5..0000000
--- a/sklad/db.go
+++ /dev/null
@@ -1,225 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"os"
-	"strings"
-	"time"
-
-	"janouch.name/sklad/bdf"
-)
-
-type Series struct {
-	Prefix      string // PK: prefix
-	Description string // what kind of containers this is for
-}
-
-type ContainerId string
-
-type Container struct {
-	Series      string      // PK: what series does this belong to
-	Number      uint        // PK: order within the series
-	Parent      ContainerId // the container we're in, if any, otherwise ""
-	Description string      // description and/or contents of this container
-}
-
-func (c *Container) Id() ContainerId {
-	return ContainerId(fmt.Sprintf("%s%s%d", db.Prefix, c.Series, c.Number))
-}
-
-func (c *Container) Children() []*Container {
-	// TODO: Sort this by Id, or maybe even return a map[string]*Container,
-	// text/template would sort that automatically.
-	return indexChildren[c.Id()]
-}
-
-func (c *Container) Path() (result []ContainerId) {
-	for c != nil && c.Parent != "" {
-		c = indexContainer[c.Parent]
-		result = append(result, c.Id())
-	}
-	return
-}
-
-type Database struct {
-	Password   string       // password for web users
-	Prefix     string       // prefix for all container IDs
-	Series     []*Series    // all known series
-	Containers []*Container // all known containers
-
-	BDFPath  string // path to bitmap font file
-	BDFScale int    // integer scaling for the bitmap font
-}
-
-var (
-	dbPath string
-	db     Database
-	dbLast Database
-	dbLog  *os.File
-
-	indexSeries    = map[string]*Series{}
-	indexContainer = map[ContainerId]*Container{}
-	indexChildren  = map[ContainerId][]*Container{}
-
-	labelFont *bdf.Font
-)
-
-// TODO: Some functions to add, remove and change things in the database.
-// Indexes must be kept valid, just like any invariants.
-
-func dbSearchSeries(query string) (result []*Series) {
-	query = strings.ToLower(query)
-	added := map[string]bool{}
-	for _, s := range db.Series {
-		if query == strings.ToLower(s.Prefix) {
-			result = append(result, s)
-			added[s.Prefix] = true
-		}
-	}
-	for _, s := range db.Series {
-		if strings.Contains(
-			strings.ToLower(s.Description), query) && !added[s.Prefix] {
-			result = append(result, s)
-		}
-	}
-	return
-}
-
-func dbSearchContainers(query string) (result []*Container) {
-	query = strings.ToLower(query)
-	added := map[ContainerId]bool{}
-	for id, c := range indexContainer {
-		if query == strings.ToLower(string(id)) {
-			result = append(result, c)
-			added[id] = true
-		}
-	}
-	for id, c := range indexContainer {
-		if strings.Contains(
-			strings.ToLower(c.Description), query) && !added[id] {
-			result = append(result, c)
-		}
-	}
-	return
-}
-
-func dbCommit() error {
-	// Write a timestamp.
-	e := json.NewEncoder(dbLog)
-	e.SetIndent("", "  ")
-	if err := e.Encode(time.Now().Format(time.RFC3339)); err != nil {
-		return err
-	}
-
-	// Back up the current database contents.
-	if err := e.Encode(&dbLast); err != nil {
-		return err
-	}
-	if err := dbLog.Sync(); err != nil {
-		return err
-	}
-
-	// Atomically replace the current database file.
-	tempPath := dbPath + ".new"
-	temp, err := os.OpenFile(tempPath, os.O_WRONLY|os.O_CREATE, 0644)
-	if err != nil {
-		return err
-	}
-	defer temp.Close()
-
-	e = json.NewEncoder(temp)
-	e.SetIndent("", "  ")
-	if err := e.Encode(&db); err != nil {
-		return err
-	}
-
-	if err := os.Rename(tempPath, dbPath); err != nil {
-		return err
-	}
-
-	dbLast = db
-	return nil
-}
-
-// loadDatabase loads the database from a simple JSON file. We do not use
-// any SQL stuff or even external KV storage because there is no real need
-// for our trivial use case, with our general amount of data.
-func loadDatabase() error {
-	dbFile, err := os.Open(dbPath)
-	if err != nil {
-		return err
-	}
-	if err := json.NewDecoder(dbFile).Decode(&db); err != nil {
-		return err
-	}
-
-	// Further validate the database.
-	if db.Prefix == "" {
-		return errors.New("misconfigured prefix")
-	}
-
-	// Construct indexes for primary keys, validate against duplicates.
-	for _, pv := range db.Series {
-		if _, ok := indexSeries[pv.Prefix]; ok {
-			return fmt.Errorf("duplicate series: %s", pv.Prefix)
-		}
-		indexSeries[pv.Prefix] = pv
-	}
-	for _, pv := range db.Containers {
-		id := pv.Id()
-		if _, ok := indexContainer[id]; ok {
-			return fmt.Errorf("duplicate container: %s", id)
-		}
-		indexContainer[id] = pv
-	}
-
-	// Construct an index that goes from parent containers to their children.
-	for _, pv := range db.Containers {
-		if pv.Parent != "" {
-			if _, ok := indexContainer[pv.Parent]; !ok {
-				return fmt.Errorf("container %s has a nonexistent parent %s",
-					pv.Id(), pv.Parent)
-			}
-		}
-		indexChildren[pv.Parent] = append(indexChildren[pv.Parent], pv)
-	}
-
-	// Validate that no container is a parent of itself on any level.
-	// This could probably be optimized but it would stop being obvious.
-	for _, pv := range db.Containers {
-		parents := map[ContainerId]bool{pv.Id(): true}
-		for pv.Parent != "" {
-			if parents[pv.Parent] {
-				return fmt.Errorf("%s contains itself", pv.Parent)
-			}
-			parents[pv.Parent] = true
-			pv = indexContainer[pv.Parent]
-		}
-	}
-
-	// Prepare label printing.
-	if db.BDFScale <= 0 {
-		db.BDFScale = 1
-	}
-
-	if f, err := os.Open(db.BDFPath); err != nil {
-		return fmt.Errorf("cannot load label font: %s", err)
-	} else {
-		defer f.Close()
-		if labelFont, err = bdf.NewFromBDF(f); err != nil {
-			return fmt.Errorf("cannot load label font: %s", err)
-		}
-	}
-
-	// Open database log file for appending.
-	if dbLog, err = os.OpenFile(dbPath+".log",
-		os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644); err != nil {
-		return err
-	}
-
-	// Remember the current state of the database.
-	dbLast = db
-	return nil
-}