From b6059aa6664a99e336021d38bac6818164183751 Mon Sep 17 00:00:00 2001
From: Julien Calixte <julienc@bam.tech>
Date: Sat, 8 Apr 2023 18:33:12 +0200
Subject: [PATCH] textarea <=> steps

---
 src/use-cases/task/components/StepInput.vue   | 22 +++++-
 .../task/infra/adaptStepsToTextarea.test.ts   | 79 +++++++++++++++++++
 .../task/infra/adaptStepsToTextarea.ts        | 38 +++++++++
 3 files changed, 137 insertions(+), 2 deletions(-)
 create mode 100644 src/use-cases/task/infra/adaptStepsToTextarea.test.ts
 create mode 100644 src/use-cases/task/infra/adaptStepsToTextarea.ts

diff --git a/src/use-cases/task/components/StepInput.vue b/src/use-cases/task/components/StepInput.vue
index a2f06ab..57c18ad 100644
--- a/src/use-cases/task/components/StepInput.vue
+++ b/src/use-cases/task/components/StepInput.vue
@@ -1,18 +1,36 @@
 <script setup lang="ts">
+import { computed, ref } from 'vue'
+import {
+  adaptStepsToTextarea,
+  adaptTextareaToSteps
+} from '../infra/adaptStepsToTextarea'
 import type { Step } from '../models/step'
 
-defineProps<{
+const props = defineProps<{
   modelValue: Step[]
 }>()
 
 const emit = defineEmits<{
   (event: 'update:modelValue', payload: Step[]): void
 }>()
+
+const rawSteps = ref(adaptStepsToTextarea(props.modelValue))
+
+const stepsTextarea = computed({
+  get() {
+    return rawSteps.value
+  },
+  set(value) {
+    rawSteps.value = value
+
+    emit('update:modelValue', adaptTextareaToSteps(value))
+  }
+})
 </script>
 
 <template>
   <div class="step-input">
-    <div>textarea</div>
+    <textarea v-model="stepsTextarea"></textarea>
     <div>beautiful data</div>
   </div>
 </template>
diff --git a/src/use-cases/task/infra/adaptStepsToTextarea.test.ts b/src/use-cases/task/infra/adaptStepsToTextarea.test.ts
new file mode 100644
index 0000000..ab5b7bd
--- /dev/null
+++ b/src/use-cases/task/infra/adaptStepsToTextarea.test.ts
@@ -0,0 +1,79 @@
+import { describe, expect, it } from 'vitest'
+import { createStepFixture } from '../models/step.fixture'
+import {
+  adaptStepsToTextarea,
+  adaptTextareaToSteps
+} from './adaptStepsToTextarea'
+
+describe('adapt steps to textarea value', () => {
+  it('returns a string with the listed steps', () => {
+    const steps = [
+      createStepFixture(),
+      createStepFixture(),
+      createStepFixture(),
+      createStepFixture()
+    ]
+
+    const stepsInTextarea = steps
+      .map((step) => `- ${step.title} | ${step.estimation}`)
+      .join('\n')
+
+    expect(adaptStepsToTextarea(steps)).toEqual(stepsInTextarea)
+  })
+
+  it('returns a list of steps from a textarea value', () => {
+    const stepsInTextarea = `- step 1 | 3
+- step 2 | 4
+- step 3 | 5`
+
+    const expectedSteps = [
+      createStepFixture({
+        id: expect.any(String),
+        title: 'step 1',
+        estimation: 3
+      }),
+      createStepFixture({
+        id: expect.any(String),
+        title: 'step 2',
+        estimation: 4
+      }),
+      createStepFixture({
+        id: expect.any(String),
+        title: 'step 3',
+        estimation: 5
+      })
+    ]
+
+    expect(adaptTextareaToSteps(stepsInTextarea)).toEqual(expectedSteps)
+  })
+
+  it('fallbacks to 0 for the estimation if there is no estimation', () => {
+    const stepInTextarea = '- step 1'
+
+    const expectedStep = createStepFixture({
+      id: expect.any(String),
+      title: 'step 1',
+      estimation: 0
+    })
+
+    expect(adaptTextareaToSteps(stepInTextarea)).toEqual([expectedStep])
+  })
+
+  it('fallbacks to 0 for the estimation if it can not read the number', () => {
+    const stepInTextarea = '- step 1 | not an estimation'
+
+    const expectedStep = createStepFixture({
+      id: expect.any(String),
+      title: 'step 1',
+      estimation: 0
+    })
+
+    expect(adaptTextareaToSteps(stepInTextarea)).toEqual([expectedStep])
+  })
+
+  it('does not create a step with an empty title', () => {
+    const stepInTextArea = '\n-'
+
+    expect(adaptTextareaToSteps(stepInTextArea)).toEqual([])
+  })
+})
diff --git a/src/use-cases/task/infra/adaptStepsToTextarea.ts b/src/use-cases/task/infra/adaptStepsToTextarea.ts
new file mode 100644
index 0000000..1ffba3c
--- /dev/null
+++ b/src/use-cases/task/infra/adaptStepsToTextarea.ts
@@ -0,0 +1,38 @@
+import { createUuid } from '@/shared/create-uuid'
+import { Step } from '../models/step'
+
+export const adaptStepsToTextarea = (steps: Step[]) =>
+  steps.map((step) => `- ${step.title} | ${step.estimation}`).join('\n')
+
+const extractTitleAndEstimationFromStep = (
+  rawStep: string
+): [string, number] => {
+  const [rawTitle, rawEstimation] = rawStep
+    .trim()
+    .replace(/^-\s*/, '')
+    .split('|')
+  const title = rawTitle.trim()
+
+  const estimationString = (rawEstimation || '').trim()
+  const estimation = Number(estimationString)
+
+  if (isNaN(estimation)) {
+    return [title, 0]
+  }
+
+  return [title, estimation]
+}
+
+export const adaptTextareaToSteps = (textareaValue: string): Step[] =>
+  textareaValue
+    .split('\n')
+    .map((rawStep) => {
+      const [title, estimation] = extractTitleAndEstimationFromStep(rawStep)
+
+      if (!title) {
+        return null
+      }
+
+      return new Step(createUuid(), title, estimation)
+    })
+    .filter((step) => step !== null) as Step[]