namespace SimpleAdmin.Application;

/// <summary>合同模板主档案；具体 DOCX 文件、变量与适用范围均挂在此档案下。</summary>
public class OnboardingContractTemplateService : DbRepository<ObContractTemplate>, IOnboardingContractTemplateService
{
    public async Task<SqlSugarPagedList<ObContractTemplate>> Page(OnboardingContractTemplatePageInput input)
    {
        return await Context.Queryable<ObContractTemplate>()
            .WhereIF(!string.IsNullOrWhiteSpace(input.TemplateName), it => it.TemplateName.Contains(input.TemplateName) || it.TemplateCode.Contains(input.TemplateName))
            .WhereIF(!string.IsNullOrWhiteSpace(input.ContractType), it => it.ContractType == input.ContractType)
            .WhereIF(!string.IsNullOrWhiteSpace(input.Status), it => it.Status == input.Status)
            .OrderByIF(!string.IsNullOrWhiteSpace(input.SortField), $"{input.SortField} {input.SortOrder}")
            .OrderBy(it => it.TemplateName)
            .ToPagedListAsync(input.PageNum, input.PageSize);
    }

    public async Task<ObContractTemplate> Detail(BaseIdInput input) => await GetByIdAsync(input.Id) ?? throw Oops.Bah("合同模板不存在");

    public async Task Add(OnboardingContractTemplateAddInput input)
    {
        await EnsureCodeUnique(input.TemplateCode, 0);
        await InsertAsync(input.Adapt<ObContractTemplate>());
    }

    public async Task Edit(OnboardingContractTemplateEditInput input)
    {
        await Detail(new BaseIdInput { Id = input.Id });
        await EnsureCodeUnique(input.TemplateCode, input.Id);
        await UpdateAsync(input.Adapt<ObContractTemplate>());
    }

    public async Task Delete(BaseIdListInput input)
    {
        if (input.Ids.Count == 0) return;
        if (await Context.Queryable<ObContractTemplateVersion>().AnyAsync(it => input.Ids.Contains(it.TemplateId))) throw Oops.Bah("模板已有版本，不能删除");
        if (await Context.Queryable<ObContractScope>().AnyAsync(it => input.Ids.Contains(it.TemplateId))) throw Oops.Bah("模板已配置适用范围，不能删除");
        if (await Context.Queryable<ObTaskContract>().AnyAsync(it => input.Ids.Contains(it.TemplateId))) throw Oops.Bah("模板已生成入职合同，不能删除");
        await DeleteByIdsAsync(input.Ids.Cast<object>().ToArray());
    }

    private async Task EnsureCodeUnique(string code, long id)
    {
        if (await Context.Queryable<ObContractTemplate>().AnyAsync(it => it.TemplateCode == code && it.Id != id)) throw Oops.Bah("模板编码已存在");
    }
    public async Task<SqlSugarPagedList<ObContractTemplateVersion>> VersionPage(OnboardingContractVersionPageInput input)
    {
        return await Context.Queryable<ObContractTemplateVersion>().Where(it => it.TemplateId == input.TemplateId)
            .WhereIF(!string.IsNullOrWhiteSpace(input.VersionStatus), it => it.VersionStatus == input.VersionStatus)
            .OrderByDescending(it => it.CreateTime).ToPagedListAsync(input.PageNum, input.PageSize);
    }

    public async Task AddVersion(OnboardingContractVersionAddInput input)
    {
        await Detail(new BaseIdInput { Id = input.TemplateId });
        var file = await Context.Queryable<SysFile>().InSingleAsync(input.SourceDocxFileId) ?? throw Oops.Bah("DOCX源文件不存在");
        if (!string.Equals(file.Suffix, "docx", StringComparison.OrdinalIgnoreCase)) throw Oops.Bah("合同模板仅支持DOCX文件");
        if (await Context.Queryable<ObContractTemplateVersion>().AnyAsync(it => it.TemplateId == input.TemplateId && it.VersionNo == input.VersionNo)) throw Oops.Bah("该模板版本号已存在");
        await Context.Insertable(input.Adapt<ObContractTemplateVersion>()).ExecuteCommandAsync();
    }

    public async Task SetVersionStatus(OnboardingContractVersionStatusInput input)
    {
        if (input.VersionStatus != ContractTemplateVersionStatus.Enabled && input.VersionStatus != ContractTemplateVersionStatus.Disabled) throw Oops.Bah("版本状态仅支持启用或停用");
        var version = await Context.Queryable<ObContractTemplateVersion>().InSingleAsync(input.Id) ?? throw Oops.Bah("模板版本不存在");
        if (input.VersionStatus == ContractTemplateVersionStatus.Enabled && !await Context.Queryable<ObTemplateVariable>().AnyAsync(it => it.TemplateVersionId == input.Id)) throw Oops.Bah("请先配置模板变量后再启用");
        version.VersionStatus = input.VersionStatus;
        await Context.Updateable(version).ExecuteCommandAsync();
    }

    public async Task<SqlSugarPagedList<ObTemplateVariable>> VariablePage(OnboardingTemplateVariablePageInput input)
    {
        return await Context.Queryable<ObTemplateVariable>().Where(it => it.TemplateVersionId == input.TemplateVersionId)
            .OrderBy(it => it.SortCode).OrderBy(it => it.VariableCode).ToPagedListAsync(input.PageNum, input.PageSize);
    }

    public async Task AddVariable(OnboardingTemplateVariableAddInput input)
    {
        await EnsureVersionDraft(input.TemplateVersionId);
        await EnsureVariableUnique(input.TemplateVersionId, input.VariableCode, 0);
        await Context.Insertable(input.Adapt<ObTemplateVariable>()).ExecuteCommandAsync();
    }

    public async Task EditVariable(OnboardingTemplateVariableEditInput input)
    {
        var variable = await Context.Queryable<ObTemplateVariable>().InSingleAsync(input.Id) ?? throw Oops.Bah("模板变量不存在");
        if (variable.TemplateVersionId != input.TemplateVersionId) throw Oops.Bah("不允许变更变量所属版本");
        await EnsureVersionDraft(input.TemplateVersionId);
        await EnsureVariableUnique(input.TemplateVersionId, input.VariableCode, input.Id);
        await Context.Updateable(input.Adapt<ObTemplateVariable>()).ExecuteCommandAsync();
    }

    public async Task DeleteVariable(BaseIdListInput input)
    {
        if (input.Ids.Count == 0) return;
        var versionIds = await Context.Queryable<ObTemplateVariable>().Where(it => input.Ids.Contains(it.Id)).Select(it => it.TemplateVersionId).ToListAsync();
        foreach (var versionId in versionIds.Distinct()) await EnsureVersionDraft(versionId);
        await Context.Deleteable<ObTemplateVariable>().In(input.Ids).ExecuteCommandAsync();
    }

    private async Task EnsureVersionDraft(long versionId)
    {
        var version = await Context.Queryable<ObContractTemplateVersion>().InSingleAsync(versionId) ?? throw Oops.Bah("模板版本不存在");
        if (version.VersionStatus != ContractTemplateVersionStatus.Draft) throw Oops.Bah("只有草稿版本可维护变量");
    }

    private async Task EnsureVariableUnique(long versionId, string code, long id)
    {
        if (await Context.Queryable<ObTemplateVariable>().AnyAsync(it => it.TemplateVersionId == versionId && it.VariableCode == code && it.Id != id)) throw Oops.Bah("该版本变量编码已存在");
    }    public async Task<SqlSugarPagedList<ObContractScope>> ScopePage(OnboardingContractScopePageInput input)
    {
        return await Context.Queryable<ObContractScope>()
            .WhereIF(input.CompanyId.HasValue, it => it.CompanyId == input.CompanyId.Value)
            .WhereIF(input.PositionId.HasValue, it => it.PositionId == input.PositionId.Value)
            .WhereIF(input.TemplateId.HasValue, it => it.TemplateId == input.TemplateId.Value)
            .OrderBy(it => it.SortCode).ToPagedListAsync(input.PageNum, input.PageSize);
    }

    public async Task AddScope(OnboardingContractScopeAddInput input)
    {
        await EnsureScopeValid(input.CompanyId, input.PositionId, input.TemplateId, input.TemplateVersionId);
        await EnsureScopeUnique(input.CompanyId, input.PositionId, input.TemplateVersionId, 0);
        await Context.Insertable(input.Adapt<ObContractScope>()).ExecuteCommandAsync();
    }

    public async Task EditScope(OnboardingContractScopeEditInput input)
    {
        if (!await Context.Queryable<ObContractScope>().AnyAsync(it => it.Id == input.Id)) throw Oops.Bah("合同适用范围不存在");
        await EnsureScopeValid(input.CompanyId, input.PositionId, input.TemplateId, input.TemplateVersionId);
        await EnsureScopeUnique(input.CompanyId, input.PositionId, input.TemplateVersionId, input.Id);
        await Context.Updateable(input.Adapt<ObContractScope>()).ExecuteCommandAsync();
    }

    public async Task DeleteScope(BaseIdListInput input)
    {
        if (input.Ids.Count > 0) await Context.Deleteable<ObContractScope>().In(input.Ids).ExecuteCommandAsync();
    }

    private async Task EnsureScopeValid(long companyId, long? positionId, long templateId, long versionId)
    {
        if (!await Context.Queryable<ObCompany>().AnyAsync(it => it.Id == companyId && it.Status == "enable")) throw Oops.Bah("所属公司不存在或未启用");
        if (positionId.HasValue && !await Context.Queryable<ObPosition>().AnyAsync(it => it.Id == positionId.Value && it.CompanyId == companyId && it.Status == "enable")) throw Oops.Bah("岗位不存在、未启用或不属于该公司");
        var version = await Context.Queryable<ObContractTemplateVersion>().InSingleAsync(versionId) ?? throw Oops.Bah("合同版本不存在");
        if (version.TemplateId != templateId || version.VersionStatus != ContractTemplateVersionStatus.Enabled) throw Oops.Bah("只能配置该模板的已启用合同版本");
    }

    private async Task EnsureScopeUnique(long companyId, long? positionId, long versionId, long id)
    {
        if (await Context.Queryable<ObContractScope>().AnyAsync(it => it.CompanyId == companyId && it.PositionId == positionId && it.TemplateVersionId == versionId && it.Id != id)) throw Oops.Bah("该公司、岗位和合同版本的适用范围已存在");
    }}