import R from "ramda"
import React, { Component } from "react"
import { connect } from "react-redux"
import { withRouter } from "react-router"
import { formValueSelector } from "redux-form"
import "./Results.css"
import "../engine/mecanismViews/Somme.css"
import { humanFigure } from "./rule/RuleValueVignette"

import { capitalise0 } from "../utils"
import { nameLeaf } from "Engine/rules"


// Filtered variables and rules can't be filtered in a uniform way, for now
let paidBy = R.pathEq(["explanation", "cotisation", "dû par"])
let filteredBy = R.pathEq(["cotisation", "dû par"])
export let byName = R.groupBy(R.prop("dottedName"))

export let cell = (branch, payer, analysis) => {
	let row = byBranch(analysis)[branch],
		items = R.filter(
			item => paidBy(payer)(item) || filteredBy(payer)(item),
			row
		),
		values = R.map(R.prop("nodeValue"), items)

	return R.sum(values)
}

export let subCell = (row, name, payer) => {
	let cells = row[name],
		items = R.filter(
			item => paidBy(payer)(item) || filteredBy(payer)(item),
			cells
		),
		values = R.map(R.prop("nodeValue"), items)

	return R.sum(values)
}

export let byBranch = analysis => {
	let sal = analysis.dict["contrat salarié . cotisations salariales"]
	let pat = analysis.dict["contrat salarié . cotisations patronales"]

	let l1 = sal ? sal.explanation.formule.explanation.explanation : [],
		l2 = pat ? pat.explanation.formule.explanation.explanation : [],
		explanations = R.concat(l1, l2),
		byBranch = R.groupBy(
			R.pathOr("autre", ["explanation", "cotisation", "branche"]),
			explanations
		)

	return byBranch
}

@withRouter
@connect(state => ({
	analysis: state.analysis,
	targetNames: state.targetNames,
	situationGate: state.situationGate,
	inversions: formValueSelector("conversation")(state, "inversions"),
	done: state.done
}))
export default class ResultsGrid extends Component {
	render() {
		let { analysis, situationGate, targetNames, inversions, done } = this.props

		if (!done) return null

		if (!analysis) return null

		let extract = x => (x && x.nodeValue) || 0,
			fromSituation = name => situationGate(name),
			fromEval = name => R.find(R.propEq("dottedName", name), analysis.targets),
			fromDict = name => analysis.dict[name],
			get = name =>
				extract(fromSituation(name) || fromEval(name) || fromDict(name))
		let results = byBranch(analysis),
			brut = get("contrat salarié . salaire brut"),
			net = get("contrat salarié . salaire net"),
			total = get("contrat salarié . salaire total")

		let inversion = R.path(
				["contrat salarié ", " salaire de base"],
				inversions
			),
			relevantSalaries = new Set(
				targetNames
					.concat(inversion ? [nameLeaf(inversion)] : [])
					.concat(["salaire de base"])
			)

		return (
			<div className="somme resultsGrid">
				<table>
					<thead>
						<tr>
							<td className="element" />
							<td
								colSpan={(relevantSalaries.size - 1) * 2}
								className="element value"
								id="sommeBase"
							>
								{humanFigure(2)(brut)}{" "}
								<span className="annotation">Salaire brut</span>
							</td>
						</tr>
					</thead>
					<tbody>
						{R.keys(results).map(branch => {
							let props = { key: branch, branch, values: results[branch], analysis, relevantSalaries }
							return <Row {...props} />
						})}
            <ReductionRow node={fromDict('contrat salarié . réduction générale')}  relevantSalaries={relevantSalaries}/>
						<tr>
							<td key="blank" className="element" />
							{relevantSalaries.has("salaire net") && (
								<>
									<td key="netOperator" className="operator">
										=
									</td>
									<td key="net" className="element value">
										{humanFigure(2)(net)}{" "}
										<span className="annotation">Salaire net</span>
									</td>
								</>
							)}
							{relevantSalaries.has("salaire total") && [
								<td key="totalOperator" className="operator">
									=
								</td>,
								<td key="total" className="element value">
									{humanFigure(2)(total)}{" "}
									<span className="annotation">Salaire total</span>
								</td>
							]}
						</tr>
					</tbody>
				</table>
			</div>
		)
	}
}

class Row extends Component {
	state = {
		folded: true
	}
	render() {
		let { branch, values, analysis, relevantSalaries } = this.props,
			detail = byName(values)

		let title = name => {
			let node = R.head(detail[name])
			return node.title || capitalise0(node.name)
		}

		let aggregateRow = (
			<tr
				key="aggregateRow"
				onClick={() => this.setState({ folded: !this.state.folded })}
			>
				<td key="category" className="element category name">
					{capitalise0(branch)}&nbsp;<span className="unfoldIndication">
						{this.state.folded ? "déplier >" : "replier"}
					</span>
				</td>
				{this.state.folded ? (
					<>
						{relevantSalaries.has("salaire net") && (
							<>
								<td key="operator1" className="operator">
									-
								</td>
								<td key="value1" className="element value">
									{humanFigure(2)(cell(branch, "salarié", analysis))}
								</td>
							</>
						)}
						{relevantSalaries.has("salaire total") && (
							<>
								<td key="operator2" className="operator">
									+
								</td>
								<td key="value2" className="element value">
									{humanFigure(2)(cell(branch, "employeur", analysis))}
								</td>
							</>
						)}
					</>
				) : (
					<td key="blank" colSpan="4" />
				)}
			</tr>
		)

		let detailRows = this.state.folded
			? []
			: R.keys(detail).map(subCellName => (
					<tr key={"detailsRow" + subCellName} className="detailsRow">
						<td className="element name">&nbsp;{title(subCellName)}</td>
						{relevantSalaries.has("salaire net") && (
							<>
								<td key="operator1" className="operator">
									-
								</td>
								<td key="value1" className="element value">
									{humanFigure(2)(subCell(detail, subCellName, "salarié"))}
								</td>
							</>
						)}
						{relevantSalaries.has("salaire total") && (
							<>
								<td key="operator2" className="operator">
									+
								</td>
								<td key="value2" className="element value">
									{humanFigure(2)(subCell(detail, subCellName, "employeur"))}
								</td>
							</>
						)}
					</tr>
				))

		// returns an array of <tr>
		return R.concat([aggregateRow], detailRows)
	}
}



// TODO Ce code est beaucoup trop spécifique
// C'est essentiellement une copie de Row
class ReductionRow extends Component {
	state = {
		folded: true
	}
	render() {
    let {relevantSalaries, node} = this.props
    if (!relevantSalaries.has('salaire total')) return null
		let value = node.nodeValue
		let aggregateRow = (
			<tr
				key="aggregateRowReductions"
				onClick={() => this.setState({ folded: !this.state.folded })}
			>
				<td key="category" className="element category name">
					Réductions &nbsp;<span className="unfoldIndication">
						{this.state.folded ? "déplier >" : "replier"}
					</span>
				</td>
				{this.state.folded ? (
					<>
						{relevantSalaries.has("salaire net") && (
							<>
								<td key="operator1" className="operator">
									-
								</td>
								<td key="value1" className="element value">
									{humanFigure(2)(0)}
								</td>
							</>
						)}
						{relevantSalaries.has("salaire total") && (
							<>
								<td key="operator2" className="operator">
									+
								</td>
								<td key="value2" className="element value">
									{humanFigure(2)(value)}
								</td>
							</>
						)}
					</>
				) : (
					<td key="blank" colSpan="4" />
				)}
			</tr>
		)

		let detailRow = this.state.folded
			? null
			:
					<tr key="detailsRowRéductions" className="detailsRow">
						<td className="element name">&nbsp;Réduction générale</td>
						{relevantSalaries.has("salaire net") && (
							<>
								<td key="operator1" className="operator">
									-
								</td>
								<td key="value1" className="element value">
									{humanFigure(2)(0)}
								</td>
							</>
						)}
						{relevantSalaries.has("salaire total") && (
							<>
								<td key="operator2" className="operator">
									+
								</td>
								<td key="value2" className="element value">
									{humanFigure(2)(value)}
								</td>
							</>
						)}
					</tr>

		// returns an array of <tr>
		return [aggregateRow, detailRow]
	}
}