show

plan/command/command.go

@@ -44,6 +44,7 @@ func NewCLI(deps Dependencies) *CLI {
 	return &CLI{
 		deps: deps,
 		cmdArgs: []CommandArgs{
+			NewShowArgs(),
 			NewAddArgs(), NewDeleteArgs(), NewListArgs(),
 			NewSyncArgs(), NewUpdateArgs(),
 		},

plan/command/show.go

@@ -1 +1,70 @@
 package command
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+
+	"go-mod.ewintr.nl/planner/plan/format"
+	"go-mod.ewintr.nl/planner/plan/storage"
+)
+
+type ShowArgs struct {
+	localID int
+}
+
+func NewShowArgs() ShowArgs {
+	return ShowArgs{}
+}
+
+func (sa ShowArgs) Parse(main []string, fields map[string]string) (Command, error) {
+	if len(main) != 1 {
+		return nil, ErrWrongCommand
+	}
+	lid, err := strconv.Atoi(main[0])
+	if err != nil {
+		return nil, ErrWrongCommand
+	}
+
+	return &Show{
+		args: ShowArgs{
+			localID: lid,
+		},
+	}, nil
+}
+
+type Show struct {
+	args ShowArgs
+}
+
+func (s *Show) Do(deps Dependencies) error {
+	id, err := deps.LocalIDRepo.FindOne(s.args.localID)
+	switch {
+	case errors.Is(err, storage.ErrNotFound):
+		return fmt.Errorf("could not find local id")
+	case err != nil:
+		return err
+	}
+
+	tsk, err := deps.TaskRepo.Find(id)
+	if err != nil {
+		return fmt.Errorf("could not find task")
+	}
+
+	var recurStr string
+	if tsk.Recurrer != nil {
+		recurStr = tsk.Recurrer.String()
+	}
+	data := [][]string{
+		{"title", tsk.Title},
+		{"local id", fmt.Sprintf("%d", s.args.localID)},
+		{"date", tsk.Date.String()},
+		{"time", tsk.Time.String()},
+		{"duration", tsk.Duration.String()},
+		{"recur", recurStr},
+		// {"id", tsk.ID},
+	}
+	fmt.Printf("\n%s\n", format.Table(data))
+
+	return nil
+}

plan/format/format.go

@@ -0,0 +1,96 @@
+package format
+
+import (
+	"os"
+	"os/exec"
+	"strconv"
+	"strings"
+)
+
+func Table(data [][]string) string {
+	if len(data) == 0 {
+		return ""
+	}
+
+	// make all cells in a column the same width
+	max := make([]int, len(data[0]))
+	for _, row := range data {
+		for c, cell := range row {
+			if len(cell) > max[c] {
+				max[c] = len(cell)
+			}
+		}
+	}
+	for r, row := range data {
+		for c, cell := range row {
+			for s := len(cell); s < max[c]; s++ {
+				data[r][c] += " "
+			}
+		}
+	}
+
+	// make it smaller if the result is too wide
+	// only by making the widest column smaller for now
+	maxWidth := findTermWidth()
+	if maxWidth != 0 {
+		width := len(max) - 1
+		for _, m := range max {
+			width += m
+		}
+		shortenWith := width - maxWidth
+		widestColNo, widestColLen := 0, 0
+		for i, m := range max {
+			if m > widestColLen {
+				widestColNo, widestColLen = i, m
+			}
+		}
+		newTaskColWidth := max[widestColNo] - shortenWith
+		if newTaskColWidth < 0 {
+			return "table is too wide to display\n"
+		}
+		if newTaskColWidth < max[widestColNo] {
+			for r, row := range data {
+				data[r][widestColNo] = row[widestColNo][:newTaskColWidth]
+			}
+		}
+	}
+
+	// print the rows
+	var output string
+	for _, row := range data {
+		// if r%3 == 0 {
+		// 	output += fmt.Sprintf("%s", "\x1b[48;5;237m")
+		// }
+		for c, col := range row {
+			output += col
+			if c != len(row)-1 {
+				output += " "
+			}
+		}
+		// if r%3 == 0 {
+		// 	output += fmt.Sprintf("%s", "\x1b[49m")
+		// }
+		output += "\n"
+	}
+
+	return output
+}
+
+func findTermWidth() int {
+	cmd := exec.Command("stty", "size")
+	cmd.Stdin = os.Stdin
+	out, err := cmd.Output()
+	if err != nil {
+		return 0
+	}
+
+	s := string(out)
+	s = strings.TrimSpace(s)
+	sArr := strings.Split(s, " ")
+
+	width, err := strconv.Atoi(sArr[1])
+	if err != nil {
+		return 0
+	}
+	return width
+}

plan/storage/memory/localid.go

@@ -18,6 +18,19 @@ func NewLocalID() *LocalID {
 	}
 }
 
+func (ml *LocalID) FindOne(lid int) (string, error) {
+	ml.mutex.RLock()
+	defer ml.mutex.RUnlock()
+
+	for id, l := range ml.ids {
+		if lid == l {
+			return id, nil
+		}
+	}
+
+	return "", storage.ErrNotFound
+}
+
 func (ml *LocalID) FindAll() (map[string]int, error) {
 	ml.mutex.RLock()
 	defer ml.mutex.RUnlock()

plan/storage/memory/localid_test.go

@@ -54,6 +54,21 @@ func TestLocalID(t *testing.T) {
 		t.Errorf("exp 2, got %v", actLid)
 	}
 
+	t.Log("find by local id")
+	actID, actErr := repo.FindOne(1)
+	if actErr != nil {
+		t.Errorf("exp nil, got %v", actErr)
+	}
+	if actID != "test" {
+		t.Errorf("exp test, got %v", actID)
+	}
+
+	t.Log("unknown local id")
+	actID, actErr = repo.FindOne(2)
+	if !errors.Is(actErr, storage.ErrNotFound) {
+		t.Errorf("exp ErrNotFound, got %v", actErr)
+	}
+
 	actIDs, actErr = repo.FindAll()
 	if actErr != nil {
 		t.Errorf("exp nil, got %v", actErr)

plan/storage/sqlite/localid.go

@@ -2,6 +2,7 @@ package sqlite
 
 import (
 	"database/sql"
+	"errors"
 	"fmt"
 
 	"go-mod.ewintr.nl/planner/plan/storage"
@@ -11,6 +12,23 @@ type LocalID struct {
 	db *sql.DB
 }
 
+func (l *LocalID) FindOne(lid int) (string, error) {
+	var id string
+	err := l.db.QueryRow(`
+SELECT id
+FROM localids
+WHERE local_id = ?
+`, lid).Scan(&id)
+	switch {
+	case errors.Is(err, sql.ErrNoRows):
+		return "", storage.ErrNotFound
+	case err != nil:
+		return "", fmt.Errorf("%w: %v", ErrSqliteFailure, err)
+	}
+
+	return id, nil
+}
+
 func (l *LocalID) FindAll() (map[string]int, error) {
 	rows, err := l.db.Query(`
 SELECT id, local_id

plan/storage/storage.go

@@ -13,6 +13,7 @@ var (
 )
 
 type LocalID interface {
+	FindOne(lid int) (string, error)
 	FindAll() (map[string]int, error)
 	FindOrNext(id string) (int, error)
 	Next() (int, error)