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Merge branch 'main' into filter-data-by-selected-locations
Signed-off-by: Elly Kitoto <[email protected]>
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android/engine/src/main/java/org/smartregister/fhircore/engine/OpenSrpApplication.kt
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android/engine/src/main/java/org/smartregister/fhircore/engine/pdf/HtmlPopulator.kt
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| /* | ||
| * Copyright 2021-2024 Ona Systems, Inc | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.smartregister.fhircore.engine.pdf | ||
|
|
||
| import java.util.regex.Matcher | ||
| import java.util.regex.Pattern | ||
| import org.hl7.fhir.r4.model.BaseDateTimeType | ||
| import org.hl7.fhir.r4.model.QuestionnaireResponse | ||
| import org.smartregister.fhircore.engine.util.extension.allItems | ||
| import org.smartregister.fhircore.engine.util.extension.formatDate | ||
| import org.smartregister.fhircore.engine.util.extension.makeItReadable | ||
| import org.smartregister.fhircore.engine.util.extension.valueToString | ||
|
|
||
| /** | ||
| * HtmlPopulator class is responsible for processing an HTML template by replacing custom tags with | ||
| * data from a QuestionnaireResponse. The class uses various regex patterns to find and replace | ||
| * custom tags such as @is-not-empty, @answer-as-list, @answer, @submitted-date, and @contains. | ||
| * | ||
| * @property questionnaireResponse The QuestionnaireResponse object containing data for replacement. | ||
| */ | ||
| class HtmlPopulator( | ||
| private val questionnaireResponse: QuestionnaireResponse, | ||
| ) { | ||
|
|
||
| // Map to store questionnaire response items keyed by their linkId | ||
| private val questionnaireResponseItemMap = | ||
| questionnaireResponse.allItems.associateBy( | ||
| keySelector = { it.linkId }, | ||
| valueTransform = { it.answer }, | ||
| ) | ||
|
|
||
| /** | ||
| * Populates the provided HTML template with data from the QuestionnaireResponse. | ||
| * | ||
| * After a tag got replaced, the current index will be used twice, adding an increment will skip a | ||
| * character right after the current index. | ||
| * | ||
| * @param rawHtml The raw HTML template containing custom tags to be replaced. | ||
| * @return The populated HTML with all custom tags replaced by corresponding data. | ||
| */ | ||
| fun populateHtml(rawHtml: String): String { | ||
| val html = StringBuilder(rawHtml) | ||
| var i = 0 | ||
| while (i < html.length) { | ||
| when { | ||
| html.startsWith("@is-not-empty", i) -> { | ||
| val matcher = isNotEmptyPattern.matcher(html.substring(i)) | ||
| if (matcher.find()) processIsNotEmpty(i, html, matcher) else i++ | ||
| } | ||
| html.startsWith("@answer-as-list", i) -> { | ||
| val matcher = answerAsListPattern.matcher(html.substring(i)) | ||
| if (matcher.find()) processAnswerAsList(i, html, matcher) else i++ | ||
| } | ||
| html.startsWith("@answer", i) -> { | ||
| val matcher = answerPattern.matcher(html.substring(i)) | ||
| if (matcher.find()) processAnswer(i, html, matcher) else i++ | ||
| } | ||
| html.startsWith("@submitted-date", i) -> { | ||
| val matcher = submittedDatePattern.matcher(html.substring(i)) | ||
| if (matcher.find()) processSubmittedDate(i, html, matcher) else i++ | ||
| } | ||
| html.startsWith("@contains", i) -> { | ||
| val matcher = containsPattern.matcher(html.substring(i)) | ||
| if (matcher.find()) processContains(i, html, matcher) else i++ | ||
| } | ||
| else -> i++ | ||
| } | ||
| } | ||
| return html.toString() | ||
| } | ||
|
|
||
| /** | ||
| * Processes the @is-not-empty tag by checking if the specified linkId has an answer. Replaces the | ||
| * tag with the content if the answer exists, otherwise removes the tag. | ||
| * | ||
| * @param i The starting index of the tag in the HTML. | ||
| * @param html The StringBuilder containing the HTML. | ||
| * @param matcher The Matcher object for the regex pattern. | ||
| */ | ||
| private fun processIsNotEmpty(i: Int, html: StringBuilder, matcher: Matcher) { | ||
| val linkId = matcher.group(1) | ||
| val content = matcher.group(2) ?: "" | ||
| val doesAnswerExist = questionnaireResponseItemMap.getOrDefault(linkId, listOf()).isNotEmpty() | ||
| if (doesAnswerExist) { | ||
| html.replace(i, matcher.end() + i, content) | ||
| // Start index is the index of '@' symbol, End index is the index after the ')' symbol. | ||
| // For example: @is-not-empty('link')Text@is-not-empty('link') | ||
| // The args we put the the replace function: The Start index is 0, the '@' symbol. The | ||
| // End index is the index after the ')' symbol. | ||
| // Note: The ones that are going to be replaced are from the Start index which is an '@' of | ||
| // the first tag, until the index before the End index which is an ')' of the second tag. | ||
| } else { | ||
| html.replace(i, matcher.end() + i, "") | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Processes the @answer-as-list tag by replacing it with a list of answers for the specified | ||
| * linkId. | ||
| * | ||
| * @param i The starting index of the tag in the HTML. | ||
| * @param html The StringBuilder containing the HTML. | ||
| * @param matcher The Matcher object for the regex pattern. | ||
| */ | ||
| private fun processAnswerAsList(i: Int, html: StringBuilder, matcher: Matcher) { | ||
| val linkId = matcher.group(1) | ||
| val answerAsList = | ||
| questionnaireResponseItemMap.getOrDefault(linkId, listOf()).joinToString(separator = "") { | ||
| answer -> | ||
| "<li>${answer.value.valueToString()}</li>" | ||
| } | ||
| html.replace(i, matcher.end() + i, answerAsList) | ||
| } | ||
|
|
||
| /** | ||
| * Processes the @answer tag by replacing it with the answer for the specified linkId. | ||
| * | ||
| * @param i The starting index of the tag in the HTML. | ||
| * @param html The StringBuilder containing the HTML. | ||
| * @param matcher The Matcher object for the regex pattern. | ||
| */ | ||
| private fun processAnswer(i: Int, html: StringBuilder, matcher: Matcher) { | ||
| val linkId = matcher.group(1) | ||
| val dateFormat = matcher.group(2) | ||
| val answer = | ||
| questionnaireResponseItemMap.getOrDefault(linkId, listOf()).joinToString { answer -> | ||
| if (dateFormat == null) { | ||
| answer.value.valueToString() | ||
| } else answer.value.valueToString(dateFormat) | ||
| } | ||
| html.replace(i, matcher.end() + i, answer) | ||
| } | ||
|
|
||
| /** | ||
| * Processes the @submitted-date tag by replacing it with the formatted date. | ||
| * | ||
| * @param i The starting index of the tag in the HTML. | ||
| * @param html The StringBuilder containing the HTML. | ||
| * @param matcher The Matcher object for the regex pattern. | ||
| */ | ||
| private fun processSubmittedDate(i: Int, html: StringBuilder, matcher: Matcher) { | ||
| val dateFormat = matcher.group(1) | ||
| val date = | ||
| if (dateFormat == null) { | ||
| questionnaireResponse.meta.lastUpdated.formatDate() | ||
| } else { | ||
| questionnaireResponse.meta.lastUpdated.formatDate(dateFormat) | ||
| } | ||
| html.replace(i, matcher.end() + i, date) | ||
| } | ||
|
|
||
| /** | ||
| * Processes the @contains tag by checking if the specified linkId contains the indicator. | ||
| * Replaces the tag with the content if the indicator is found, otherwise removes the tag. | ||
| * | ||
| * @param i The starting index of the tag in the HTML. | ||
| * @param html The StringBuilder containing the HTML. | ||
| * @param matcher The Matcher object for the regex pattern. | ||
| */ | ||
| private fun processContains(i: Int, html: StringBuilder, matcher: Matcher) { | ||
| val linkId = matcher.group(1) | ||
| val indicator = matcher.group(2) ?: "" | ||
| val content = matcher.group(3) ?: "" | ||
| val doesAnswerExist = | ||
| questionnaireResponseItemMap.getOrDefault(linkId, listOf()).any { | ||
| when { | ||
| it.hasValueCoding() -> it.valueCoding.code == indicator | ||
| it.hasValueStringType() -> it.valueStringType.value.contains(indicator) | ||
| it.hasValueIntegerType() -> it.valueIntegerType.value == indicator.toInt() | ||
| it.hasValueDecimalType() -> it.valueDecimalType.value == indicator.toBigDecimal() | ||
| it.hasValueBooleanType() -> it.valueBooleanType.value == indicator.toBoolean() | ||
| it.hasValueQuantity() -> | ||
| "${it.valueQuantity.value.toPlainString()} ${it.valueQuantity.unit}" == indicator | ||
| it.hasValueDateType() || it.hasValueDateTimeType() -> | ||
| (it.value as BaseDateTimeType).value.makeItReadable() == indicator | ||
| else -> false | ||
| } | ||
| } | ||
| if (doesAnswerExist) { | ||
| html.replace(i, matcher.end() + i, content) | ||
| } else { | ||
| html.replace(i, matcher.end() + i, "") | ||
| } | ||
| } | ||
|
|
||
| companion object { | ||
| // Compile regex patterns for different tags | ||
| private val isNotEmptyPattern = | ||
| Pattern.compile("@is-not-empty\\('([^']+)'\\)((?s).*?)@is-not-empty\\('\\1'\\)") | ||
| private val answerAsListPattern = Pattern.compile("@answer-as-list\\('([^']+)'\\)") | ||
| private val answerPattern = Pattern.compile("@answer\\('([^']+)'(?:,'([^']+)')?\\)") | ||
| private val submittedDatePattern = Pattern.compile("@submitted-date(?:\\('([^']+)'\\))?") | ||
| private val containsPattern = | ||
| Pattern.compile("@contains\\('([^']+)','([^']+)'\\)((?s).*?)@contains\\('\\1'\\)") | ||
| } | ||
| } |
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