From c81b6b4e478a29f11cd45a40d4645cbb7aa7dbc2 Mon Sep 17 00:00:00 2001
From: samshadwell <git@samshadwell.com>
Date: Thu, 16 Nov 2023 23:22:08 -0500
Subject: [PATCH] Switch to yml-based config.

---
 .gitignore         |  2 +-
 README.md          |  8 ++++----
 config.go          | 31 +++++++++++++++++++++++++++++++
 config.go.example  | 15 ---------------
 config.yml.example |  3 +++
 go.mod             |  5 ++++-
 go.sum             |  3 +++
 7 files changed, 46 insertions(+), 21 deletions(-)
 create mode 100644 config.go
 delete mode 100644 config.go.example
 create mode 100644 config.yml.example

diff --git a/.gitignore b/.gitignore
index 171acde..28d935b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,4 +21,4 @@
 go.work
 
 # Sensitive config
-config.go
\ No newline at end of file
+config.yml
\ No newline at end of file
diff --git a/README.md b/README.md
index 6c345cd..ff6ec4f 100644
--- a/README.md
+++ b/README.md
@@ -22,12 +22,12 @@ This integration makes the bookkeeping easier. Our setup is:
 
 ## Configuration
 
-Configuration is assumed to live in a `config.go` file at the root of the application. For security reasons, I don't
-check this file into Git, but you can see the general structure in `config.go.example`. To use this yourself, first
+Configuration is assumed to live in a `config.yml` file at the root of the application. For security reasons, I don't
+check this file into Git, but you can see the general structure in `config.yml.example`. To use this yourself, first
 run:
 
 ```shell
-cp config.go.example config.go
+cp config.yml.example config.yml
 ```
 
-Then fill in the values in `config.go` with your own values.
+Then fill in the values in `config.yml` with your own values.
diff --git a/config.go b/config.go
new file mode 100644
index 0000000..d9c089d
--- /dev/null
+++ b/config.go
@@ -0,0 +1,31 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"gopkg.in/yaml.v2"
+)
+
+type Config struct {
+	YnabToken string `yaml:"ynabToken"`
+	BudgetId  string `yaml:"budgetId"`
+}
+
+func NewConfig() *Config {
+	f, err := os.Open("config.yml")
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error opening config file. Did you create a config.yml? %v\n", err)
+		os.Exit(1)
+	}
+	defer f.Close()
+
+	var cfg Config
+	decoder := yaml.NewDecoder(f)
+	err = decoder.Decode(&cfg)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error decoding config file. Make sure it has the correct format. See config.yml.example for an example %v\n", err)
+	}
+
+	return &cfg
+}
diff --git a/config.go.example b/config.go.example
deleted file mode 100644
index 16a4593..0000000
--- a/config.go.example
+++ /dev/null
@@ -1,15 +0,0 @@
-package main
-
-type Config struct {
-	YnabToken string
-	BudgetId  string
-}
-
-// FIXME: Update these to be relevant to your YNAB account.
-func NewConfig() *Config {
-	return &Config{
-		// See https://api.ynab.com/#authentication-overview for how to obtain a token.
-		YnabToken: "some-ynab-token",
-		BudgetId:  "budget-id-123",
-	}
-}
diff --git a/config.yml.example b/config.yml.example
new file mode 100644
index 0000000..efe8c50
--- /dev/null
+++ b/config.yml.example
@@ -0,0 +1,3 @@
+---
+ynabToken: "xxx"
+budgetId: "yyy"
diff --git a/go.mod b/go.mod
index cdecb63..fd2c258 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,7 @@ module github.com/samshadwell/split-ynab
 
 go 1.21
 
-require github.com/brunomvsouza/ynab.go v1.4.0 // indirect
+require (
+	github.com/brunomvsouza/ynab.go v1.4.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)
diff --git a/go.sum b/go.sum
index 1c3b73b..4c86fe5 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +1,5 @@
 github.com/brunomvsouza/ynab.go v1.4.0 h1:j32NsAq74sxWtfi16cFrn/aj2K8sZpaXPlcJiB9bwRk=
 github.com/brunomvsouza/ynab.go v1.4.0/go.mod h1:u5zDi6NY53RIqel+hzVodPr0CuZ0ZONbf03cex+kods=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=