/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { decimalDigest } from '../digest';
import { Serializer, SimplePlaceholderMapper } from './serializer';
import * as xml from './xml_helper';
const _MESSAGES_TAG = 'messagebundle';
const _MESSAGE_TAG = 'msg';
const _PLACEHOLDER_TAG = 'ph';
const _EXAMPLE_TAG = 'ex';
const _SOURCE_TAG = 'source';
const _DOCTYPE = `<!ELEMENT messagebundle (msg)*>
<!ATTLIST messagebundle class CDATA #IMPLIED>

<!ELEMENT msg (#PCDATA|ph|source)*>
<!ATTLIST msg id CDATA #IMPLIED>
<!ATTLIST msg seq CDATA #IMPLIED>
<!ATTLIST msg name CDATA #IMPLIED>
<!ATTLIST msg desc CDATA #IMPLIED>
<!ATTLIST msg meaning CDATA #IMPLIED>
<!ATTLIST msg obsolete (obsolete) #IMPLIED>
<!ATTLIST msg xml:space (default|preserve) "default">
<!ATTLIST msg is_hidden CDATA #IMPLIED>

<!ELEMENT source (#PCDATA)>

<!ELEMENT ph (#PCDATA|ex)*>
<!ATTLIST ph name CDATA #REQUIRED>

<!ELEMENT ex (#PCDATA)>`;
export class Xmb extends Serializer {
    write(messages, locale) {
        const exampleVisitor = new ExampleVisitor();
        const visitor = new _Visitor();
        let rootNode = new xml.Tag(_MESSAGES_TAG);
        messages.forEach(message => {
            const attrs = { id: message.id };
            if (message.description) {
                attrs['desc'] = message.description;
            }
            if (message.meaning) {
                attrs['meaning'] = message.meaning;
            }
            let sourceTags = [];
            message.sources.forEach((source) => {
                sourceTags.push(new xml.Tag(_SOURCE_TAG, {}, [
                    new xml.Text(`${source.filePath}:${source.startLine}${source.endLine !== source.startLine ? ',' + source.endLine : ''}`)
                ]));
            });
            rootNode.children.push(new xml.CR(2), new xml.Tag(_MESSAGE_TAG, attrs, [...sourceTags, ...visitor.serialize(message.nodes)]));
        });
        rootNode.children.push(new xml.CR());
        return xml.serialize([
            new xml.Declaration({ version: '1.0', encoding: 'UTF-8' }),
            new xml.CR(),
            new xml.Doctype(_MESSAGES_TAG, _DOCTYPE),
            new xml.CR(),
            exampleVisitor.addDefaultExamples(rootNode),
            new xml.CR(),
        ]);
    }
    load(content, url) {
        throw new Error('Unsupported');
    }
    digest(message) { return digest(message); }
    createNameMapper(message) {
        return new SimplePlaceholderMapper(message, toPublicName);
    }
}
class _Visitor {
    visitText(text, context) { return [new xml.Text(text.value)]; }
    visitContainer(container, context) {
        const nodes = [];
        container.children.forEach((node) => nodes.push(...node.visit(this)));
        return nodes;
    }
    visitIcu(icu, context) {
        const nodes = [new xml.Text(`{${icu.expressionPlaceholder}, ${icu.type}, `)];
        Object.keys(icu.cases).forEach((c) => {
            nodes.push(new xml.Text(`${c} {`), ...icu.cases[c].visit(this), new xml.Text(`} `));
        });
        nodes.push(new xml.Text(`}`));
        return nodes;
    }
    visitTagPlaceholder(ph, context) {
        const startTagAsText = new xml.Text(`<${ph.tag}>`);
        const startEx = new xml.Tag(_EXAMPLE_TAG, {}, [startTagAsText]);
        // TC requires PH to have a non empty EX, and uses the text node to show the "original" value.
        const startTagPh = new xml.Tag(_PLACEHOLDER_TAG, { name: ph.startName }, [startEx, startTagAsText]);
        if (ph.isVoid) {
            // void tags have no children nor closing tags
            return [startTagPh];
        }
        const closeTagAsText = new xml.Text(`</${ph.tag}>`);
        const closeEx = new xml.Tag(_EXAMPLE_TAG, {}, [closeTagAsText]);
        // TC requires PH to have a non empty EX, and uses the text node to show the "original" value.
        const closeTagPh = new xml.Tag(_PLACEHOLDER_TAG, { name: ph.closeName }, [closeEx, closeTagAsText]);
        return [startTagPh, ...this.serialize(ph.children), closeTagPh];
    }
    visitPlaceholder(ph, context) {
        const interpolationAsText = new xml.Text(`{{${ph.value}}}`);
        // Example tag needs to be not-empty for TC.
        const exTag = new xml.Tag(_EXAMPLE_TAG, {}, [interpolationAsText]);
        return [
            // TC requires PH to have a non empty EX, and uses the text node to show the "original" value.
            new xml.Tag(_PLACEHOLDER_TAG, { name: ph.name }, [exTag, interpolationAsText])
        ];
    }
    visitIcuPlaceholder(ph, context) {
        const icuExpression = ph.value.expression;
        const icuType = ph.value.type;
        const icuCases = Object.keys(ph.value.cases).map((value) => value + ' {...}').join(' ');
        const icuAsText = new xml.Text(`{${icuExpression}, ${icuType}, ${icuCases}}`);
        const exTag = new xml.Tag(_EXAMPLE_TAG, {}, [icuAsText]);
        return [
            // TC requires PH to have a non empty EX, and uses the text node to show the "original" value.
            new xml.Tag(_PLACEHOLDER_TAG, { name: ph.name }, [exTag, icuAsText])
        ];
    }
    serialize(nodes) {
        return [].concat(...nodes.map(node => node.visit(this)));
    }
}
export function digest(message) {
    return decimalDigest(message);
}
// TC requires at least one non-empty example on placeholders
class ExampleVisitor {
    addDefaultExamples(node) {
        node.visit(this);
        return node;
    }
    visitTag(tag) {
        if (tag.name === _PLACEHOLDER_TAG) {
            if (!tag.children || tag.children.length == 0) {
                const exText = new xml.Text(tag.attrs['name'] || '...');
                tag.children = [new xml.Tag(_EXAMPLE_TAG, {}, [exText])];
            }
        }
        else if (tag.children) {
            tag.children.forEach(node => node.visit(this));
        }
    }
    visitText(text) { }
    visitDeclaration(decl) { }
    visitDoctype(doctype) { }
}
// XMB/XTB placeholders can only contain A-Z, 0-9 and _
export function toPublicName(internalName) {
    return internalName.toUpperCase().replace(/[^A-Z0-9_]/g, '_');
}
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* @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {decimalDigest} from '../digest';\nimport * as i18n from '../i18n_ast';\n\nimport {PlaceholderMapper, Serializer, SimplePlaceholderMapper} from './serializer';\nimport * as xml from './xml_helper';\n\nconst _MESSAGES_TAG = 'messagebundle';\nconst _MESSAGE_TAG = 'msg';\nconst _PLACEHOLDER_TAG = 'ph';\nconst _EXAMPLE_TAG = 'ex';\nconst _SOURCE_TAG = 'source';\n\nconst _DOCTYPE = `<!ELEMENT messagebundle (msg)*>\n<!ATTLIST messagebundle class CDATA #IMPLIED>\n\n<!ELEMENT msg (#PCDATA|ph|source)*>\n<!ATTLIST msg id CDATA #IMPLIED>\n<!ATTLIST msg seq CDATA #IMPLIED>\n<!ATTLIST msg name CDATA #IMPLIED>\n<!ATTLIST msg desc CDATA #IMPLIED>\n<!ATTLIST msg meaning CDATA #IMPLIED>\n<!ATTLIST msg obsolete (obsolete) #IMPLIED>\n<!ATTLIST msg xml:space (default|preserve) \"default\">\n<!ATTLIST msg is_hidden CDATA #IMPLIED>\n\n<!ELEMENT source (#PCDATA)>\n\n<!ELEMENT ph (#PCDATA|ex)*>\n<!ATTLIST ph name CDATA #REQUIRED>\n\n<!ELEMENT ex (#PCDATA)>`;\n\nexport class Xmb extends Serializer {\n  write(messages: i18n.Message[], locale: string|null): string {\n    const exampleVisitor = new ExampleVisitor();\n    const visitor = new _Visitor();\n    let rootNode = new xml.Tag(_MESSAGES_TAG);\n\n    messages.forEach(message => {\n      const attrs: {[k: string]: string} = {id: message.id};\n\n      if (message.description) {\n        attrs['desc'] = message.description;\n      }\n\n      if (message.meaning) {\n        attrs['meaning'] = message.meaning;\n      }\n\n      let sourceTags: xml.Tag[] = [];\n      message.sources.forEach((source: i18n.MessageSpan) => {\n        sourceTags.push(new xml.Tag(_SOURCE_TAG, {}, [\n          new xml.Text(\n              `${source.filePath}:${source.startLine}${source.endLine !== source.startLine ? ',' + source.endLine : ''}`)\n        ]));\n      });\n\n      rootNode.children.push(\n          new xml.CR(2),\n          new xml.Tag(_MESSAGE_TAG, attrs, [...sourceTags, ...visitor.serialize(message.nodes)]));\n    });\n\n    rootNode.children.push(new xml.CR());\n\n    return xml.serialize([\n      new xml.Declaration({version: '1.0', encoding: 'UTF-8'}),\n      new xml.CR(),\n      new xml.Doctype(_MESSAGES_TAG, _DOCTYPE),\n      new xml.CR(),\n      exampleVisitor.addDefaultExamples(rootNode),\n      new xml.CR(),\n    ]);\n  }\n\n  load(content: string, url: string):\n      {locale: string, i18nNodesByMsgId: {[msgId: string]: i18n.Node[]}} {\n    throw new Error('Unsupported');\n  }\n\n  digest(message: i18n.Message): string { return digest(message); }\n\n\n  createNameMapper(message: i18n.Message): PlaceholderMapper {\n    return new SimplePlaceholderMapper(message, toPublicName);\n  }\n}\n\nclass _Visitor implements i18n.Visitor {\n  visitText(text: i18n.Text, context?: any): xml.Node[] { return [new xml.Text(text.value)]; }\n\n  visitContainer(container: i18n.Container, context: any): xml.Node[] {\n    const nodes: xml.Node[] = [];\n    container.children.forEach((node: i18n.Node) => nodes.push(...node.visit(this)));\n    return nodes;\n  }\n\n  visitIcu(icu: i18n.Icu, context?: any): xml.Node[] {\n    const nodes = [new xml.Text(`{${icu.expressionPlaceholder}, ${icu.type}, `)];\n\n    Object.keys(icu.cases).forEach((c: string) => {\n      nodes.push(new xml.Text(`${c} {`), ...icu.cases[c].visit(this), new xml.Text(`} `));\n    });\n\n    nodes.push(new xml.Text(`}`));\n\n    return nodes;\n  }\n\n  visitTagPlaceholder(ph: i18n.TagPlaceholder, context?: any): xml.Node[] {\n    const startTagAsText = new xml.Text(`<${ph.tag}>`);\n    const startEx = new xml.Tag(_EXAMPLE_TAG, {}, [startTagAsText]);\n    // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n    const startTagPh =\n        new xml.Tag(_PLACEHOLDER_TAG, {name: ph.startName}, [startEx, startTagAsText]);\n    if (ph.isVoid) {\n      // void tags have no children nor closing tags\n      return [startTagPh];\n    }\n\n    const closeTagAsText = new xml.Text(`</${ph.tag}>`);\n    const closeEx = new xml.Tag(_EXAMPLE_TAG, {}, [closeTagAsText]);\n    // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n    const closeTagPh =\n        new xml.Tag(_PLACEHOLDER_TAG, {name: ph.closeName}, [closeEx, closeTagAsText]);\n\n    return [startTagPh, ...this.serialize(ph.children), closeTagPh];\n  }\n\n  visitPlaceholder(ph: i18n.Placeholder, context?: any): xml.Node[] {\n    const interpolationAsText = new xml.Text(`{{${ph.value}}}`);\n    // Example tag needs to be not-empty for TC.\n    const exTag = new xml.Tag(_EXAMPLE_TAG, {}, [interpolationAsText]);\n    return [\n      // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n      new xml.Tag(_PLACEHOLDER_TAG, {name: ph.name}, [exTag, interpolationAsText])\n    ];\n  }\n\n  visitIcuPlaceholder(ph: i18n.IcuPlaceholder, context?: any): xml.Node[] {\n    const icuExpression = ph.value.expression;\n    const icuType = ph.value.type;\n    const icuCases = Object.keys(ph.value.cases).map((value: string) => value + ' {...}').join(' ');\n    const icuAsText = new xml.Text(`{${icuExpression}, ${icuType}, ${icuCases}}`);\n    const exTag = new xml.Tag(_EXAMPLE_TAG, {}, [icuAsText]);\n    return [\n      // TC requires PH to have a non empty EX, and uses the text node to show the \"original\" value.\n      new xml.Tag(_PLACEHOLDER_TAG, {name: ph.name}, [exTag, icuAsText])\n    ];\n  }\n\n  serialize(nodes: i18n.Node[]): xml.Node[] {\n    return [].concat(...nodes.map(node => node.visit(this)));\n  }\n}\n\nexport function digest(message: i18n.Message): string {\n  return decimalDigest(message);\n}\n\n// TC requires at least one non-empty example on placeholders\nclass ExampleVisitor implements xml.IVisitor {\n  addDefaultExamples(node: xml.Node): xml.Node {\n    node.visit(this);\n    return node;\n  }\n\n  visitTag(tag: xml.Tag): void {\n    if (tag.name === _PLACEHOLDER_TAG) {\n      if (!tag.children || tag.children.length == 0) {\n        const exText = new xml.Text(tag.attrs['name'] || '...');\n        tag.children = [new xml.Tag(_EXAMPLE_TAG, {}, [exText])];\n      }\n    } else if (tag.children) {\n      tag.children.forEach(node => node.visit(this));\n    }\n  }\n\n  visitText(text: xml.Text): void {}\n  visitDeclaration(decl: xml.Declaration): void {}\n  visitDoctype(doctype: xml.Doctype): void {}\n}\n\n// XMB/XTB placeholders can only contain A-Z, 0-9 and _\nexport function toPublicName(internalName: string): string {\n  return internalName.toUpperCase().replace(/[^A-Z0-9_]/g, '_');\n}\n"]}