"use client";

import React, { useState, useEffect } from "react";
import { TeamStats, TeamMember } from "@/lib/admin-types";
import { TeamDetailHeader } from "./team-detail-header";
import { TeamMetricsCards } from "./team-metrics-cards";
import { TeamDetailTabs } from "./team-detail-tabs";
import { TeamMemberModal } from "@/components/admin";
import {
  COVERAGE_OBJECTIVES,
  isCoverageBelowObjective,
} from "@/lib/evaluation-utils";

interface TeamDetailClientWrapperProps {
  team: TeamStats;
  teamId: string;
}

interface SkillAnalysis {
  skillName: string;
  category: string;
  importance: "incontournable" | "majeure" | "standard";
  experts: Array<{
    name: string;
    level: number;
    canMentor: boolean;
  }>;
  learners: Array<{
    name: string;
    currentLevel: number;
  }>;
  averageLevel: number;
  totalEvaluations: number;
  expertCount: number;
  learnerCount: number;
  proficiencyRate: number;
  coverage: number;
}

interface TeamInsights {
  averageTeamLevel: number;
  totalExperts: number;
  totalLearners: number;
  skillGaps: {
    incontournable: number;
    majeure: number;
    standard: number;
  };
  strongSkills: {
    incontournable: number;
    majeure: number;
    standard: number;
  };
  criticalSkillsCoverage: {
    incontournable: number;
    majeure: number;
  };
}

export function TeamDetailClientWrapper({
  team,
  teamId,
}: TeamDetailClientWrapperProps) {
  const [skillAnalysis, setSkillAnalysis] = useState<SkillAnalysis[]>([]);
  const [selectedMember, setSelectedMember] = useState<TeamMember | null>(null);
  const [isMemberModalOpen, setIsMemberModalOpen] = useState(false);

  useEffect(() => {
    // Analyser les compétences avec les vraies données
    const skillMap = new Map<string, any>();

    // Créer un Map pour stocker les infos d'importance des skills
    const skillImportanceMap = new Map<string, string>();
    team.topSkills.forEach((skill) => {
      skillImportanceMap.set(skill.skillName, skill.importance);
    });

    team.members.forEach((member) => {
      member.skills.forEach((skill) => {
        if (!skillMap.has(skill.skillName)) {
          skillMap.set(skill.skillName, {
            skillName: skill.skillName,
            category: skill.category,
            importance: skillImportanceMap.get(skill.skillName) || "standard",
            experts: [],
            learners: [],
            averageLevel: 0,
            totalEvaluations: 0,
            coverage: 0,
          });
        }

        const skillData = skillMap.get(skill.skillName);
        skillData.totalEvaluations++;
        skillData.averageLevel += skill.level;

        if (skill.level >= 2) {
          skillData.experts.push({
            name: `${member.firstName} ${member.lastName}`,
            level: skill.level,
            canMentor: skill.canMentor,
          });
        }

        if (skill.wantsToLearn) {
          skillData.learners.push({
            name: `${member.firstName} ${member.lastName}`,
            currentLevel: skill.level,
          });
        }
      });
    });

    const skills = Array.from(skillMap.values())
      .map(
        (skill): SkillAnalysis => ({
          ...skill,
          averageLevel: skill.averageLevel / skill.totalEvaluations,
          expertCount: skill.experts.length,
          learnerCount: skill.learners.length,
          proficiencyRate:
            (skill.experts.length / skill.totalEvaluations) * 100,
          coverage: (skill.experts.length / team.totalMembers) * 100,
        })
      )
      .sort((a, b) => {
        // D'abord par importance
        const importanceOrder = { incontournable: 2, majeure: 1, standard: 0 };
        const importanceDiff =
          importanceOrder[b.importance] - importanceOrder[a.importance];
        if (importanceDiff !== 0) return importanceDiff;

        // Ensuite par niveau moyen
        return b.averageLevel - a.averageLevel;
      });

    setSkillAnalysis(skills);
  }, [team]);

  const handleExportReport = () => {
    const reportData = {
      team: team.teamName,
      direction: team.direction,
      exportDate: new Date().toLocaleDateString(),
      detailedStats: {
        totalMembers: team.totalMembers,
        averageSkillLevel: team.averageSkillLevel,
        skillCoverage: team.skillCoverage,
      },
      members: team.members.map((member) => ({
        name: `${member.firstName} ${member.lastName}`,
        joinDate: member.joinDate,
        skillCount: member.skills.length,
        skills: member.skills,
      })),
      skillAnalysis,
    };

    const dataStr = JSON.stringify(reportData, null, 2);
    const dataUri =
      "data:application/json;charset=utf-8," + encodeURIComponent(dataStr);

    const exportFileDefaultName = `rapport-detaille-${team.teamName.toLowerCase()}-${
      new Date().toISOString().split("T")[0]
    }.json`;

    const linkElement = document.createElement("a");
    linkElement.setAttribute("href", dataUri);
    linkElement.setAttribute("download", exportFileDefaultName);
    linkElement.click();
  };

  const teamInsights: TeamInsights = {
    averageTeamLevel:
      team.members.reduce((sum, member) => {
        const memberAvg =
          member.skills.reduce((s, skill) => s + skill.level, 0) /
          member.skills.length;
        return sum + memberAvg;
      }, 0) / team.members.length,
    totalExperts: team.members.reduce(
      (sum, member) =>
        sum + member.skills.filter((s) => s.level >= 2 && s.canMentor).length,
      0
    ),
    totalLearners: team.members.reduce(
      (sum, member) => sum + member.skills.filter((s) => s.wantsToLearn).length,
      0
    ),
    skillGaps: {
      incontournable: skillAnalysis.filter(
        (s) =>
          s.importance === "incontournable" &&
          isCoverageBelowObjective(s.coverage, s.importance)
      ).length,
      majeure: skillAnalysis.filter(
        (s) =>
          s.importance === "majeure" &&
          isCoverageBelowObjective(s.coverage, s.importance)
      ).length,
      standard: skillAnalysis.filter(
        (s) => s.importance === "standard" && s.averageLevel < 1.5
      ).length,
    },
    strongSkills: {
      incontournable: skillAnalysis.filter(
        (s) =>
          s.importance === "incontournable" &&
          !isCoverageBelowObjective(s.coverage, s.importance)
      ).length,
      majeure: skillAnalysis.filter(
        (s) =>
          s.importance === "majeure" &&
          !isCoverageBelowObjective(s.coverage, s.importance)
      ).length,
      standard: skillAnalysis.filter(
        (s) => s.importance === "standard" && s.averageLevel >= 2.5
      ).length,
    },
    criticalSkillsCoverage: team.criticalSkillsCoverage,
  };

  return (
    <div className="min-h-screen bg-gradient-to-br from-slate-950 via-slate-900 to-slate-950 relative overflow-hidden">
      {/* Background Effects */}
      <div className="absolute inset-0 bg-[radial-gradient(ellipse_at_top,_var(--tw-gradient-stops))] from-blue-900/20 via-slate-900 to-slate-950" />
      <div className="absolute inset-0 bg-grid-white/5 bg-[size:50px_50px]" />
      <div className="absolute inset-0 bg-gradient-to-t from-slate-950 via-transparent to-transparent" />

      <div className="relative z-10 container mx-auto px-6 py-8 max-w-7xl space-y-8">
        {/* Header */}
        <TeamDetailHeader
          teamName={team.teamName}
          direction={team.direction}
          onExport={handleExportReport}
        />

        {/* Métriques principales */}
        <TeamMetricsCards
          totalMembers={team.totalMembers}
          teamInsights={teamInsights}
          skillCoverage={team.skillCoverage}
        />

        {/* Contenu principal avec onglets */}
        <TeamDetailTabs
          team={team}
          skillAnalysis={skillAnalysis}
          teamInsights={teamInsights}
          onMemberClick={(member) => {
            setSelectedMember(member);
            setIsMemberModalOpen(true);
          }}
        />

        {/* Modal détail membre */}
        <TeamMemberModal
          isOpen={isMemberModalOpen}
          onClose={() => setIsMemberModalOpen(false)}
          member={selectedMember}
        />
      </div>
    </div>
  );
}