From 568eff4218015fdb9336ac5978edacc923d25690 Mon Sep 17 00:00:00 2001
From: Liang-Shih Lin <liangshihlin@gmail.com>
Date: Wed, 28 Aug 2024 09:53:45 +0800
Subject: [PATCH] fix: read and write config and csv from XDG_CONFIG_HOME

---
 config.go | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 data.go   | 50 +---------------------------
 main.go   |  8 ++++-
 3 files changed, 106 insertions(+), 50 deletions(-)
 create mode 100644 config.go

diff --git a/config.go b/config.go
new file mode 100644
index 0000000..0cabc1a
--- /dev/null
+++ b/config.go
@@ -0,0 +1,98 @@
+package main
+
+import (
+	"encoding/csv"
+	"encoding/json"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+)
+
+type Config struct {
+	DbPath string
+}
+
+var (
+	configHome = os.Getenv("XDG_CONFIG_HOME")
+	configDir  = configHome + "/kancli"
+	configFile = configDir + "/config.json"
+)
+
+func readConfig() Config {
+	mkdirErr := os.MkdirAll(configDir, 0755)
+	if mkdirErr != nil {
+		log.Fatal(mkdirErr)
+	}
+
+	var config Config
+	if _, err := os.Stat(configFile); os.IsNotExist(err) {
+		file, err := os.Create(configFile)
+		if err != nil {
+			log.Fatal(err)
+		}
+		defer file.Close()
+		csvFile := configDir + "/tasks.csv"
+		file.WriteString(fmt.Sprintf("{\"dbPath\": \"%s\"}", csvFile))
+	}
+
+	data, readJSONFileErr := os.ReadFile(configFile)
+	if readJSONFileErr != nil {
+		log.Fatal(readJSONFileErr)
+	}
+
+	if readJSONerr := json.Unmarshal(data, &config); readJSONerr != nil {
+		log.Fatal(readJSONerr)
+	}
+
+	return config
+}
+
+func readCSV() [][]string {
+	if _, err := os.Stat(csvFile); os.IsNotExist(err) {
+		file, err := os.Create(csvFile)
+		if err != nil {
+			log.Fatal(err)
+		}
+		defer file.Close()
+		file.WriteString("title,description,status\n")
+	}
+
+	content, err := os.ReadFile(csvFile)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	r := csv.NewReader(strings.NewReader(string(content)))
+	r.Comma = ','
+
+	// Skip the header
+	_, readErr := r.Read()
+	if readErr != nil {
+		log.Fatal(readErr)
+	}
+
+	records, readAllErr := r.ReadAll()
+	if readAllErr != nil {
+		log.Fatal(readAllErr)
+	}
+
+	return records
+}
+
+func updateCSV() {
+	file, err := os.Create(csvFile)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer file.Close()
+	file.WriteString("title,description,status\n")
+	w := csv.NewWriter(file)
+	for _, col := range board.cols {
+		for _, item := range col.list.Items() {
+			task := item.(Task)
+			w.Write([]string{task.Title(), task.Description(), task.status.String()})
+		}
+	}
+	w.Flush()
+}
diff --git a/data.go b/data.go
index 62d2240..af3f6fb 100644
--- a/data.go
+++ b/data.go
@@ -1,11 +1,6 @@
 package main
 
 import (
-	"encoding/csv"
-	"log"
-	"os"
-	"strings"
-
 	"github.com/charmbracelet/bubbles/list"
 )
 
@@ -29,33 +24,7 @@ func (b *Board) initLists() {
 		newColumn(done),
 	}
 
-	if _, err := os.Stat("tasks.csv"); os.IsNotExist(err) {
-		file, err := os.Create("tasks.csv")
-		if err != nil {
-			log.Fatal(err)
-		}
-		defer file.Close()
-		file.WriteString("title,description,status\n")
-	}
-
-	content, err := os.ReadFile("tasks.csv")
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	r := csv.NewReader(strings.NewReader(string(content)))
-	r.Comma = ','
-
-	// Skip the header
-	_, readErr := r.Read()
-	if readErr != nil {
-		log.Fatal(err)
-	}
-
-	records, readAllErr := r.ReadAll()
-	if readAllErr != nil {
-		log.Fatal(err)
-	}
+	records := readCSV()
 
 	listItems := [][]list.Item{
 		todo:       {},
@@ -80,20 +49,3 @@ func (b *Board) initLists() {
 	b.cols[done].list.Title = "Done"
 	b.cols[done].list.SetItems(listItems[done])
 }
-
-func updateCSV() {
-	file, err := os.Create("tasks.csv")
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer file.Close()
-	file.WriteString("title,description,status\n")
-	w := csv.NewWriter(file)
-	for _, col := range board.cols {
-		for _, item := range col.list.Items() {
-			task := item.(Task)
-			w.Write([]string{task.Title(), task.Description(), task.status.String()})
-		}
-	}
-	w.Flush()
-}
diff --git a/main.go b/main.go
index 04f116d..6de37e2 100644
--- a/main.go
+++ b/main.go
@@ -38,7 +38,10 @@ func (s status) String() string {
 
 const margin = 4
 
-var board *Board
+var (
+	board   *Board
+	csvFile string
+)
 
 const (
 	todo status = iota
@@ -54,6 +57,9 @@ func main() {
 	}
 	defer f.Close()
 
+	config := readConfig()
+	csvFile = config.DbPath
+
 	board = NewBoard()
 	board.initLists()
 	p := tea.NewProgram(board)