From 2a0875cf1f0b726678831cf9e8951b3363f4578d Mon Sep 17 00:00:00 2001
From: Mike Vink <mike1994vink@gmail.com>
Date: Sun, 26 Feb 2023 17:06:43 +0100
Subject: start making a cli

---
 2022/01/day1.txt  | 2257 -----------------------------------------------------
 2022/01/elfs.go   |   40 +
 2022/01/input.txt |   14 +
 2022/01/main.go   |   70 +-
 aoc/day.go        |   46 +-
 aoc/inputters.go  |   42 +-
 cmd/aocli/gen.go  |   15 +
 cmd/aocli/main.go |   24 +
 flake.nix         |    1 +
 go.mod            |    5 +
 go.sum            |   10 +
 11 files changed, 194 insertions(+), 2330 deletions(-)
 delete mode 100644 2022/01/day1.txt
 create mode 100644 2022/01/elfs.go
 create mode 100644 2022/01/input.txt
 create mode 100644 cmd/aocli/gen.go
 create mode 100644 cmd/aocli/main.go

diff --git a/2022/01/day1.txt b/2022/01/day1.txt
deleted file mode 100644
index 78ccff4..0000000
--- a/2022/01/day1.txt
+++ /dev/null
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-
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-6848
-7827
-7235
-2491
-6362
-7344
-4841
-4454
-8604
-
-8394
-5794
-13797
-15870
-4818
-
-8412
-14825
-16385
-11468
-
-29542
-
-6924
-5318
-6833
-3875
-6931
-3650
-2849
-2068
-7369
-1375
-2375
-4576
-
-2269
-5568
-4133
-3853
-1996
-5885
-1074
-3356
-5187
-6079
-1522
-5220
-1704
-2942
-1641
-
-14866
-9313
-23116
-
-13359
-13222
-15441
-14439
-16050
-
-8511
-10467
-8505
-2880
-4654
-6594
-3942
-1306
-
-6483
-7197
-4990
-6774
-
-8594
-7425
-5701
-9526
-2538
-9519
-8284
-8558
-9647
-
-1181
-7034
-13744
-6912
-9743
-8735
-
-5076
-7046
-5565
-2810
-1461
-4916
-3777
-5174
-1842
-6263
-4151
-6307
-
-6262
-11239
-
-2639
-3859
-6504
-4947
-6810
-6805
-3288
-3042
-5873
-6339
-2931
-4332
-1707
-
-1834
-2381
-5243
-5769
-3444
-2755
-4929
-1520
-3791
-2443
-1521
-6059
-3943
-5845
-
-19725
-18762
-2318
-11981
-
-7867
-10660
-2834
-13236
-1524
-7225
-
-1377
-2138
-2955
-1407
-3971
-1872
-1293
-6090
-1203
-6798
-2729
-3360
-
-12399
-5994
-7732
-12299
-12160
-
-10151
-19182
-18060
-19397
-
-34075
-25670
-
-5145
-6043
-5241
-2001
-6063
-1342
-4769
-6629
-7465
-3500
-4873
-
-4825
-5192
-1670
-5946
-8053
-2622
-1436
-5977
-4523
-4415
-5831
-
-7035
-3322
-7624
-1840
-2078
-6420
-6273
-4362
-4874
-7712
-5714
-
-3644
-4526
-2940
-7904
-7620
-6260
-4794
-3705
-3585
-3033
-
-5391
-6000
-3398
-3922
-4655
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-2082
-1856
-6626
-
-6085
-5246
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-8802
-3666
-6219
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-4531
-
-5420
-2366
-3861
-5686
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-2292
-6004
-6195
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-1639
-7004
-
-4932
-2314
-2297
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-4624
-7495
-3485
-6580
-1751
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-6100
-
-9273
-11201
-6597
-3958
-11219
-8899
-9413
-
-28386
-26100
-
-3170
-2290
-6393
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-4855
-1937
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-2830
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-2780
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-
-11208
-4958
-7770
-10314
-8593
-11973
-6000
-
-19570
-24273
-20898
-
-1972
-12111
-8510
-1145
-
-12217
-13432
-
-7383
-1407
-5216
-8061
-10559
-8810
-1385
-
-2300
-3845
-4200
-3033
-2758
-2464
-1543
-1216
-4980
-4409
-3881
-5162
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-2350
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-
-5339
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-15809
-
-6064
-3176
-6116
-1092
-4494
-1245
-4343
-2704
-5405
-5426
-5126
-4722
-1609
-4367
-2280
-
-16523
-23950
-11677
-
-9674
-1499
-11422
-13298
-9949
-10616
-
-3895
-9314
-12341
-8416
-
-1949
-9055
-3289
-5458
-9902
-7137
-6167
-5111
-
-2141
-2700
-2221
-7184
-6103
-4030
-3695
-4116
-3358
-6650
-5498
-1608
-
-3900
-5189
-3383
-5800
-5109
-2383
-1001
-6074
-1110
-5187
-5430
-3448
-1899
-5865
-1098
-
-8948
-2222
-8881
-1948
-6993
-4242
-4588
-7172
-
-6514
-3993
-9681
-6992
-6150
-10477
-5089
-8951
-
-1714
-7959
-12561
-13204
-13321
-3506
-
-4979
-3299
-1108
-5065
-
-5536
-8474
-8551
-5400
-1405
-10623
-5028
-9292
-
-1199
-4551
-4953
-2814
-4224
-6361
-3457
-3640
-3139
-4825
-2001
-1432
-4116
-3688
-
-13664
-10207
-6028
-3098
-4410
-4175
-
-5623
-3796
-2402
-4038
-2083
-2761
-1806
-3806
-1704
-1905
-1550
-6133
-4524
-
-3052
-3739
-3842
-7695
-8135
-3738
-4717
-3232
-8761
-
-4498
-4685
-7377
-2806
-5031
-3386
-1609
-7810
-3717
-2535
-6173
-
-15301
-1343
-
-6134
-
-3331
-8838
-18585
-2670
-
-10770
-4959
-8095
-1497
-1627
-4809
-5857
-10329
-
-8734
-3895
-4301
-5958
-1740
-10403
-8830
-
-3531
-13028
-12682
-
-19031
-
-14044
-
-2867
-1941
-5744
-9099
-3583
-1719
-3917
-2737
-4593
-
-4474
-2684
-9230
-7981
-3032
-4811
-9558
-8513
-
-23797
-27967
-
-9143
-8743
-9120
-4760
-1985
-7971
-7476
-10415
-
-24714
-13638
-
-13753
-13010
-12301
-15112
-13584
-
-1467
-2681
-4482
-3424
-7161
-7828
-6262
-5660
-6950
-5807
-5109
-
-3023
-5008
-5278
-1131
-1563
-6917
-1553
-2406
-3173
-3255
-2772
-1427
-1930
-
diff --git a/2022/01/elfs.go b/2022/01/elfs.go
new file mode 100644
index 0000000..b13dbd3
--- /dev/null
+++ b/2022/01/elfs.go
@@ -0,0 +1,40 @@
+package main
+
+func biggestElf(data []int) []int {
+	topThree := make([]int, 3)
+	push := func(i int, a int) {
+		tmp := topThree[i]
+		topThree[i] = a
+		carry := tmp
+		for i++; i < len(topThree); i++ {
+			tmp = topThree[i]
+			topThree[i] = carry
+			carry = tmp
+		}
+	}
+	Elf := 0
+	for i := 0; i < len(data); i++ {
+		if data[i] > 0 {
+			Elf = Elf + data[i]
+		}
+		if data[i] < 0 || i == len(data)-1 {
+			for j := 0; j < len(topThree); j++ {
+				if topThree[j] < Elf {
+					push(j, Elf)
+					break
+				}
+			}
+			Elf = 0
+			continue
+		}
+	}
+	return topThree
+}
+
+func sum(array []int) int {
+	s := 0
+	for _, val := range array {
+		s += val
+	}
+	return s
+}
diff --git a/2022/01/input.txt b/2022/01/input.txt
new file mode 100644
index 0000000..2094f91
--- /dev/null
+++ b/2022/01/input.txt
@@ -0,0 +1,14 @@
+1000
+2000
+3000
+
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000
diff --git a/2022/01/main.go b/2022/01/main.go
index 96378a6..3b8ac4c 100644
--- a/2022/01/main.go
+++ b/2022/01/main.go
@@ -1,65 +1,39 @@
 package main
 
 import (
-	"bufio"
-	"fmt"
+	"context"
 	"strconv"
 
 	"mvinkio.online/aoc/aoc"
 )
 
-func biggestElf(data []int) []int {
-	topThree := make([]int, 3)
-	push := func(i int, a int) {
-		tmp := topThree[i]
-		topThree[i] = a
-		carry := tmp
-		for i++; i < len(topThree); i++ {
-			tmp = topThree[i]
-			topThree[i] = carry
-			carry = tmp
-		}
+func readCaloriesInts(line string) (int, error) {
+	if len(line) == 0 {
+		return -1, nil
 	}
-	Elf := 0
-	for i := 0; i < len(data); i++ {
-		if data[i] < 0 {
-			for j := 0; j < len(topThree); j++ {
-				if topThree[j] < Elf {
-					push(j, Elf)
-					break
-				}
-			}
-			Elf = 0
-			continue
-		}
-		Elf = Elf + data[i]
+	if i, err := strconv.Atoi(line); err != nil {
+		return 0, err
+	} else {
+		return i, nil
 	}
-	return topThree
 }
 
-func sum(array []int) int {
-	s := 0
-	for _, val := range array {
-		s += val
-	}
-	return s
+func PartOne(ctx context.Context, data []int) ([]int, error) {
+	return biggestElf(data), nil
+}
+
+func PartTwo(ctx context.Context, data []int) ([]int, error) {
+	return []int{sum(biggestElf(data))}, nil
 }
 
 // Boilerplate
-func main() {
-	s := aoc.NewScannerFromFile("2022/01/input.txt")
 
-	data := make([]int, 0)
-	scanner := bufio.NewScanner(f)
-	var line string
-	for scanner.Scan() {
-		line = scanner.Text()
-		if len(line) == 0 {
-			data = append(data, -1)
-		} else if num, err := strconv.Atoi(line); err == nil {
-			data = append(data, num)
-		}
-	}
-	fmt.Println(biggestElf(data))
-	fmt.Println(sum(biggestElf(data)))
+func main() {
+	aoc.RunDay(
+		context.TODO(),
+		aoc.NewScanCloser("2022/01/input.txt"),
+		aoc.ReadByLine(readCaloriesInts),
+		PartOne,
+		PartTwo,
+	)
 }
diff --git a/aoc/day.go b/aoc/day.go
index 7505223..1258e46 100644
--- a/aoc/day.go
+++ b/aoc/day.go
@@ -3,17 +3,49 @@ package aoc
 import (
 	"bufio"
 	"context"
+	"fmt"
+	"io"
+	"log"
+	"os"
 )
 
-type Reader[T any] interface {
-	Read(ctx context.Context, scanner *bufio.Scanner) (T, error)
+type ScanCloser struct {
+	*bufio.Scanner
+	io.Closer
 }
 
-type Solver[T any, R any] interface {
-	Solve(ctx context.Context, data T) (R, error)
+func NewScanCloser(file string) *ScanCloser {
+	f, err := os.Open(file)
+	if err != nil {
+		log.Panic(err)
+	}
+	return &ScanCloser{
+		Scanner: bufio.NewScanner(f),
+		Closer:  f,
+	}
 }
 
-func RunDay[T any, R any](ctx context.Context, in Reader[T], solvers ...Solver[T, R]) {
-	ctx, cancel := context.WithCancel(ctx)
-	defer cancel()
+type Solver[T any, R any] func(ctx context.Context, data T) (R, error)
+
+func RunDay[T any, R any](ctx context.Context, s *ScanCloser, in Reader[T], solvers ...Solver[T, R]) error {
+	defer s.Closer.Close()
+
+	data, err := in(ctx, s.Scanner)
+	if err != nil {
+		return err
+	}
+
+	results := make([]R, 0)
+	for _, solver := range solvers {
+		out, err := solver(ctx, data)
+		if err != nil {
+			return fmt.Errorf("")
+		}
+		results = append(results, out)
+	}
+
+	for _, result := range results {
+		fmt.Println(result)
+	}
+	return nil
 }
diff --git a/aoc/inputters.go b/aoc/inputters.go
index f677177..33e24b4 100644
--- a/aoc/inputters.go
+++ b/aoc/inputters.go
@@ -6,34 +6,40 @@ import (
 	"strconv"
 )
 
-// Read all lines into type T
-type ReadLines[T any] func(lines []string) (T, error)
+type (
+	Reader[T any] func(ctx context.Context, scanner *bufio.Scanner) (T, error)
+	Lines[T any]  func(lines []string) (T, error)
+	ByLine[T any] func(line string) (T, error)
+)
 
-func (l ReadLines[T]) Read(ctx context.Context, scanner *bufio.Scanner) (T, error) {
-	lines := []string{}
-	for scanner.Scan() {
-		lines = append(lines, scanner.Text())
+// Read all lines into type T
+func ReadLines[T any](l Lines[T]) Reader[T] {
+	return func(ctx context.Context, scanner *bufio.Scanner) (T, error) {
+		lines := []string{}
+		for scanner.Scan() {
+			lines = append(lines, scanner.Text())
+		}
+		return l(lines)
 	}
-	return l(lines)
 }
 
 // Read line by line into type T, collect in []T
-type ReadByLine[T any] func(line string) (T, error)
-
-func (l ReadByLine[T]) Read(ctx context.Context, scanner *bufio.Scanner) ([]T, error) {
-	lines := []T{}
-	for scanner.Scan() {
-		if t, err := l(scanner.Text()); err == nil {
-			lines = append(lines, t)
-		} else {
-			return nil, err
+func ReadByLine[T any](l ByLine[T]) Reader[[]T] {
+	return func(ctx context.Context, scanner *bufio.Scanner) ([]T, error) {
+		lines := []T{}
+		for scanner.Scan() {
+			if t, err := l(scanner.Text()); err == nil {
+				lines = append(lines, t)
+			} else {
+				return nil, err
+			}
 		}
+		return lines, nil
 	}
-	return lines, nil
 }
 
 // Read lines into ints
-var ReadInts = ReadByLine[int](func(line string) (int, error) {
+var ReadInts = ReadByLine(func(line string) (int, error) {
 	if i, err := strconv.Atoi(line); err != nil {
 		return 0, err
 	} else {
diff --git a/cmd/aocli/gen.go b/cmd/aocli/gen.go
new file mode 100644
index 0000000..c8251a6
--- /dev/null
+++ b/cmd/aocli/gen.go
@@ -0,0 +1,15 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var genCmd = &cobra.Command{
+	Use:   "gen",
+	Short: "Generate a new key pair",
+	Run: func(cmd *cobra.Command, args []string) {
+		fmt.Println(args)
+	},
+}
diff --git a/cmd/aocli/main.go b/cmd/aocli/main.go
new file mode 100644
index 0000000..357b25d
--- /dev/null
+++ b/cmd/aocli/main.go
@@ -0,0 +1,24 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "aocli [command]",
+	Short: "AOCLI is a CLI for running Advent of Code solvers and generating boilerplate code",
+}
+
+func init() {
+	rootCmd.AddCommand(genCmd)
+}
+
+func main() {
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
diff --git a/flake.nix b/flake.nix
index 3f3b543..15e8fa6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,6 +14,7 @@
       devShells.default = pkgs.mkShell {
         nativeBuildInputs = [pkgs.bashInteractive];
         buildInputs = with pkgs; [
+          delve
           go_1_19
           ginkgo
           gotests
diff --git a/go.mod b/go.mod
index 9e6c5f2..45a9eae 100644
--- a/go.mod
+++ b/go.mod
@@ -5,13 +5,18 @@ go 1.19
 require (
 	github.com/onsi/ginkgo/v2 v2.8.3
 	github.com/onsi/gomega v1.27.1
+	github.com/spf13/cobra v1.6.1
 )
 
 require (
+	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
 	github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
 	github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38 // indirect
+	github.com/inconshreveable/mousetrap v1.0.1 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 	golang.org/x/net v0.7.0 // indirect
 	golang.org/x/sys v0.5.0 // indirect
 	golang.org/x/text v0.7.0 // indirect
diff --git a/go.sum b/go.sum
index fe60354..9abed6b 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,8 @@
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
 github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -14,12 +16,20 @@ github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeN
 github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38 h1:yAJXTCF9TqKcTiHJAE8dj7HMvPfh66eeA2JYW7eFpSE=
 github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
+github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
+github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/onsi/ginkgo/v2 v2.8.3 h1:RpbK1G8nWPNaCVFBWsOGnEQQGgASi6b8fxcWBvDYjxQ=
 github.com/onsi/ginkgo/v2 v2.8.3/go.mod h1:6OaUA8BCi0aZfmzYT/q9AacwTzDpNbxILUT+TlBq6MY=
 github.com/onsi/gomega v1.27.1 h1:rfztXRbg6nv/5f+Raen9RcGoSecHIFgBBLQK3Wdj754=
 github.com/onsi/gomega v1.27.1/go.mod h1:aHX5xOykVYzWOV4WqQy0sy8BQptgukenXpCXfadcIAw=
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